How long does a furnace last? Furnaces can last longer when they are well cared for and set up properly. In Fort Collins, Loveland, and Northern Colorado, our area’s altitude means there is less oxygen available per volume of air. Because of the effect this has on gas combustion, it is especially important for units to be set up properly. If you are uncertain whether your furnace was installed properly, you can reach out to Balance Point Heating, Cooling & Plumbing for professional diagnostic and repair services.

The Realistic Answer

So, how long does a furnace last? Realistically, a furnace can last around 15 to 20 years if it is maintained properly. However, a lot of factors go into a furnace’s lifespan. While an oil furnace tends to last around 15 to 25 years, natural gas and propane furnaces average 15 to 20 years. An electric furnace can last between 20 and 30 years.

Altitude and a demanding climate can impact the lifespan, but only if the furnace isn’t set up and maintained correctly. If the furnace is adjusted properly and consistently maintained over time, it can achieve the same lifespan as a furnace in an area with a lower altitude. By understanding how altitude fits in, what actually drives furnace life expectancy, and warning signs to watch out for, you can find out how to extend the lifespan of your furnace.

What Actually Determines How Long a Furnace Lasts

The average furnace life expectancy is just a rough guide. In reality, lifespan is less about a fixed number and more about a few key factors.

• Maintenance History: One important factor in a furnace’s lifespan is whether it receives regular maintenance to keep combustion clean and catch wear early.
• Run Time and Climate Demand: A furnace that has to work harder due to a long, cold winter will end up aging faster.
• Correct Sizing and Installation: When a furnace is poorly sized or installed incorrectly, it may experience premature wear and short cycling.
• Proper Altitude Setup: Furnaces can last just as long in Fort Collins and Loveland’s high altitude, but they must be adjusted properly to burn cleanly and run efficiently. A badly adjusted furnace ends up working much harder than it should.
• Filter and Airflow Care: Restricted airflow can strain components, which is why maintenance and filter changes are so important.
• Build Quality and Fuel Type: Some furnace fuels and builds last longer than others.

How Altitude Actually Fits In

So, how long do gas furnaces last? Due to Fort Collins’ higher elevation, there is less oxygen available for combustion. This means that gas furnaces must be set up differently than they are at sea level. As long as the furnace is set up properly and maintained, the altitude should not play a significant role in the furnace’s lifespan.

The real risk is that the furnace may not have been adjusted correctly for the altitude. Similarly, combustion and airflow problems can cause increased wear. Fortunately, the risk of these issues can be reduced through proper setup and maintenance.

Signs Your Furnace Is Near the End

If you notice the following signs your furnace is dying, you may need to invest in a new unit.

• Age: While age alone doesn’t mean you need a replacement, the odds are increased if you notice the other signs and your unit is getting older.
• Rising Repair Frequency and Cost: Multiple repairs in a short time span are an indication your furnace may need a replacement. If the repair costs almost as much as a replacement, getting a new furnace may be a better choice.
• Climbing Energy Costs: A furnace can require more energy to heat your home when its energy efficiency starts to decline.
• Uneven Heating or Comfort Issues: If your rooms won’t stay warm, it may be time for a new unit.
• Short Cycling or Frequent Lockouts: A furnace that is struggling may not run a full cycle.
• Visible Wear: Visible corrosion or rust on the unit can indicate deterioration, while a technician may identify cracks or damage to the heat exchanger during an inspection.
• Safety Flags: A cracked heat exchanger and carbon monoxide (CO) concerns are immediate signs you need repairs or a furnace replacement in Fort Collins. Because of the safety risks involved, these signs mean you should immediately call for help.

One sign alone rarely settles the decision. If you notice multiple problems at once, it’s likely time for a furnace replacement.

Repair or Replace: A Practical Framework

There are a few things you should consider as you decide between furnace repairs or a full replacement.

First, you need to consider the repair cost against the furnace’s age and the price of a replacement. A costly repair on an older unit is likely not worth it. In comparison, a minor repair on a relatively new system is generally a good idea.

A system that is generally reliable and efficient is likely worth repairing. If investing in an energy-efficient furnace or new heat pump would lower your energy costs, it may be worth investigating a new one. Similarly, safety issues, like a cracked heat exchanger or CO concerns, can strongly favor replacement.

If you’re going to replace the unit, it’s always better to do it on your schedule. Don’t wait for an emergency replacement. From flexible financing to same-day services, Balance Point can help with all of your heating and cooling installations. We’ll evaluate your situation and help you determine whether a repair or replacement makes more sense.

FAQs

How long does a gas furnace last? 

A typical furnace often lasts around 15 to 20 years if it has been maintained properly. The exact furnace lifespan will vary based on the unit’s maintenance history, run time, sizing, and setup. Through consistent maintenance and tune-ups, you can catch minor issues before they worsen, prevent breakdowns, and extend the lifespan of your HVAC equipment.

Does altitude shorten furnace life in Fort Collins? 

Altitude isn’t a dramatic factor on its own. If the unit has been set up correctly for our elevation and maintained properly over the years, it can last a normal length of time. Improper altitude setup or inadequate maintenance can contribute to premature furnace wear. Both of these factors can generally be avoided by making sure your furnace is properly adjusted and maintained. 

When should I replace my furnace instead of repairing it? 

Deciding when to replace a furnace will depend on the age of the unit, the cost of repairs, and the price of the replacement. If you need to perform a major repair on an aging furnace, a replacement is more likely to be the right answer. Similarly, comfort issues and unusually high energy bills are also signs that a replacement may be needed in the near future.

What are the signs my furnace is dying? 

Before a furnace dies, it will typically show signs of declining performance. You may notice rising repair costs, short cycling, visible rust, safety problems, uneven heat, and higher energy bills. If you notice multiple signs, it’s a strong indication that there may be a problem.

Is it worth planning a furnace replacement before it fails? 

Yes, it is far more convenient to replace a furnace on your own schedule than it is to call for an emergency replacement during a cold snap. Planned replacements also give you time to choose the right system without pressure.

Schedule Your Next Furnace Evaluation

Unsure how long your furnace will last? If you are considering a furnace repair or replacement, Balance Point offers honest assessments and upfront pricing in Fort Collins and Loveland.

We will tell you when a repair still makes sense and walk you through your options, so you can make a decision without pressure.

Reach out to book your next furnace inspection today.

A furnace blowing cold air is an immediate cause for concern on a cold winter day. By understanding common causes of this issue and which signs to look for, you can determine when you can fix the problem yourself and when you need to reach out to a professional heating, ventilation, and air conditioning (HVAC) technician. Balance Point Heating, Cooling & Plumbing offers 24/7 services and the fast diagnostics you need to keep your family warm.

What You Are Experiencing

If you’re experiencing this issue, you may notice your furnace is running but not heating. Even when air is coming out of the vent, it feels cool or cold instead of warm. 

The good news is that, at the start of the heating season, the likely cause is also the simplest. The next few sections walk through what to check first, what to check next, and which causes call for a technician.

Check This First: Thermostat Fan Setting

Thermostat settings are the most frequent cause of a furnace blowing cold air. Your thermostat has an “on” and “auto” mode. When the furnace is in “on” mode, the blower runs constantly. Even if the burners are off between heating cycles, the fan will keep going. You’ll feel cool or room-temperature air coming from your vents. 

When your thermostat is set to “auto,” the fan generally runs as part of the furnace’s heating cycle. The air from the vents should feel warm. 

If this is the cause of your furnace fan blowing cold air, it is not a malfunction or breakdown. You simply have to change the setting, and the problem will be fixed.

Check This Next: Filter and Airflow

After you have checked the thermostat settings, the next step is to look for filter and airflow issues. Both of these problems can restrict airflow and cause your furnace to overheat, triggering a safety mechanism that shuts off the burners.

Airflow problems can stem from a severely clogged filter, a dirty blower or coil, or closed or blocked vents and returns. You can troubleshoot by replacing the filter. Then, check each vent to verify that it is open and unblocked. Afterward, note whether warm air returns.

Causes That Need a Technician

So, why is my furnace blowing cold air? If your settings and airflow are fine, the cause is likely related to the ignition, gas, or control system.

• Ignition or Flame-Sensor Failure: If the burners do not stay lit when the furnace tries to fire, only the fan will run. This type of start-then-quit pattern often happens if there is an issue with the ignition or flame sensor.
• Gas Supply Issue: A closed valve, supply interruption, or issue with the gas control can result in no flame. As a result, the furnace will not be able to heat.
• Overheating Safety Lockout: Repeated overheating can cause the furnace’s safety controls to shut off the burners or, on some systems, trigger a lockout. The fan will still function, so you may feel cool air coming from the vents.
• Failed Control Board: If the board mismanages the heating sequence, it may result in the furnace blowing cold air.
• Ductwork Losing Heat: Long runs through unconditioned spaces can result in air that arrives cooler, even if the furnace is heating properly. Damaged and leaky ducts can also lead to the loss of conditioned air.
• Condensate or Pressure-Switch Fault on High-Efficiency Units: If a condensate blockage interferes with proper pressure or drainage, the furnace’s safety controls may prevent the burners from operating.

The Altitude Factor in Northern Colorado 

In Northern Colorado, it’s also important to consider the altitude factor. High altitude impacts gas combustion in a way that does not affect heat pumps or air conditioners. 

High altitudes have thinner air, so less oxygen is available for combustion. If the furnace has not been properly set up for the altitude, it may not burn gas as cleanly or efficiently as intended. Altitude, combustion, and airflow problems can also mean that your furnace has less margin before safety systems engage and shut the burners down.

Combustion adjustments are not a DIY repair. If you need to adjust your furnace’s combustion, reach out to Balance Point for help.

Safe Checks Before You Call

Before you call for help, there are a few basic steps you can take to troubleshoot on your own. For your safety, you should never open the burner compartment or bypass safety switches. Do not adjust the gas valve or altitude settings yourself. If the furnace will not stay lit, do not keep retrying it.

• Check 1: Set the thermostat fan to “auto” and the system to “heat” mode. The setpoint must be above room temperature for the furnace to turn on.
• Check 2: Change the air filter. Check to see whether the vents and returns are open. 
• Check 3: Check your furnace power switch and the breaker to see whether they are on. Verify that the gas is on, but do not adjust gas controls yourself.
• Check 4: Pay attention to whether the furnace lights and how quickly the furnace shuts off after it starts.

When To Call Balance Point

If your Fort Collins furnace is not heating and basic troubleshooting does not help, you can reach out to Balance Point for emergency repairs. The following signs are indications that your furnace needs to be evaluated by a professional.

• The cold air continues after you set the fan to “auto” and replace the air filter.
• You cannot get the burners to light, or they light and shut off repeatedly.
• There is a gas odor. For your safety, you should immediately evacuate your home and call your utility provider from a safe location if you notice any sulfur-like scents.
• Your gas furnace has no heat during a cold snap. This is an urgent comfort and safety issue, so you should call for help right away.
• Your furnace shows an error code or is locked out.

FAQs

Why is my furnace blowing cold air when the heat is on?

The most common reason this happens is the thermostat setting. If the fan is on “on” mode instead of “auto” mode, the blower will run between heating cycles. Try changing the setting to “auto.” If this doesn’t work, you may have an ignition, airflow, or gas problem.

What does “on” versus “auto” mean on my thermostat? 

“On” mode makes the fan run whether the furnace is on or off. In “auto” mode, the fan only runs during active heating, so the air should generally be warm while the furnace is operating properly.

Can a dirty filter make my furnace blow cold air? 

Yes. Clogged filters can restrict airflow and cause the furnace to overheat. As a result, the burners will shut off as a safety measure, and the fan will remain on.

Why does only cold air come out during a cold snap? 

Heavy demand can expose weaknesses and marginal problems that aren’t obvious during milder weather. If your furnace blows cold air, it’s a good idea to schedule a prompt diagnostic appointment.

Is furnace cold air an emergency? 

Not necessarily. However, experiencing no heat during freezing temperatures, gas odors, and lockouts should always be dealt with immediately. Our team offers flexible financing, same-day services, and maintenance memberships, so you can get the furnace tune-ups, replacements, and repairs you need.

Solve Your Furnace-Related Issues

Unsure why your furnace is blowing cold air? If your furnace still blows cold air on “auto” mode, Balance Point offers same-day diagnostics with upfront pricing in the Fort Collins and Loveland area.

Our team will quickly work to determine the cause. Then, we’ll explain your options clearly and help you decide on the next step without any pressure.

Reach out to book your next furnace repair service.

In Fort Collins, Loveland, and the Northern Colorado area, homeowners often notice furnace flame sensor issues after the first cold snap arrives. After months of idling, the furnace tends to run harder, exposing underlying problems. At Northern Colorado’s elevation, proper furnace setup and combustion are especially important because lower air density can affect combustion performance.

Fortunately, this is one of the more common and more fixable furnace problems. At Balance Point Heating, Cooling & Plumbing, we can quickly diagnose and repair furnace-related issues.

The Pattern You Are Seeing

If this is the issue, you’ll notice that the furnace ignites, the burners light, and the furnace runs briefly. Then, it shuts down, and the cycle starts all over again.

This pattern, in which a furnace starts and then shuts off after a few seconds, often indicates a flame-sensing problem. By understanding what a flame sensor does, why a dirty one is an issue, and common signs to look for, you can determine when you can troubleshoot yourself and when you need professional furnace repairs.

What the Flame Sensor Does

In your furnace, the flame sensor is a thin metal rod that sits in the burner flame. It confirms whether the flame is actually present. If it does not sense a flame within a few seconds, the control board shuts off the gas to prevent unburned gas from being released into your home.

This shutdown is a deliberate safety feature and not a failure of the system. When it happens, you may notice that the furnace short cycles on ignition. Although the ignition succeeds, the sensor fails to confirm the flame and shuts down the system before trying again.

Why a Dirty Sensor Causes the Furnace To Start Then Quit

The furnace flame sensor functions by detecting a tiny electrical current through the flame. Over time, oxidation, carbon, or other residue can coat the rod and interfere with that signal. This buildup blocks the flame-sensing current, so the furnace reads that no flame is there and shuts down, even though the burners are actually lit.

As buildup accumulates, the flame signal may become weaker or intermittent, eventually causing more frequent shutdowns or ignition failures. Eventually, the furnace may barely stay lit.

This gradual process is the reason why flame sensor problems are often first noticed during cold weather. Because the furnace must run more frequently, a marginal signal can finally fail.

Other Causes of the Same Symptom

While the flame sensor is the most common cause, there are several other problems that can cause the same start-then-quit pattern. One of our technicians can help you quickly determine the underlying cause through a professional evaluation.

• Clogged or restricted flue or exhaust: When a vent is blocked, it can trigger a safety shutdown.
• Faulty igniter or gas valve: Problems with the ignition system or gas supply can cause failed or interrupted heating cycles, although the exact symptoms may differ from those of a dirty flame sensor.
• Failing control board: When a furnace lights then goes out, it may be due to the board misreading or mishandling the flame signal.
• Restricted airflow from a dirty filter: Restricted airflow can cause the furnace to overheat and trigger a safety shutdown, producing symptoms that may resemble other short-cycling problems.
• Blocked condensate drain on high-efficiency furnaces: For high-efficiency furnaces, a pressure switch shutdown due to a blocked condensate drain line can cause the same start-and-quit problem.

While noting the pattern and symptoms can narrow down the potential causes, the only way to know the cause for sure is by having a heating, ventilation, and air conditioning (HVAC) technician test your furnace.

Safe Checks Before You Call

As a homeowner, there are a few things you can check on your own. However, furnace flame sensor cleaning and repairs should be left to the professionals. While sensor cleaning is often described as a simple task online, the risk of part damage and gas leaks means that this is not a DIY project.

• Check 1: First, check the air filter. Dirty filters can restrict the furnace’s airflow. Replace it as needed. Then, confirm that the supply and return vents are open and unobstructed.
• Check 2: Verify that your thermostat is set to “heat” mode. Set the thermostat several degrees warmer than room temperature to see if it triggers the furnace to turn on.
• Check 3: Note the timing of when the shutoff occurs. Track the number of seconds before it shuts off and how frequently it retries.
• Check 4: See whether the furnace stays locked out after multiple failed attempts.

Important safety note: For the safety of your family, home, and furnace, you should never disassemble the burner assembly. Do not attempt to clean the flame sensor yourself. Improper cleaning or excessive abrasion can damage the sensor. You should also never touch the gas valve or wiring. If the furnace keeps failing, do not keep forcing it to retry.

When To Call Balance Point

You should always call for help if the previous checks did not fix the problem. We also recommend reaching out for professional Fort Collins furnace repairs if you notice any of the following symptoms.

• Your furnace repeatedly starts and shuts off.
• The furnace is locked out.
• There is a gas odor. If this occurs, immediately leave your home and contact your gas utility before you do anything else.
• The furnace is unable to stay lit long enough to warm up your home.
• You noticed soot, an unusual flame color, or a burning odor.
• The furnace has had repeated flame-sensor problems in the same season. Often, this signals a deeper combustion issue.

How a Technician Fixes It

Our technicians can fix the problem by cleaning or replacing the flame sensor as needed. We’ll inspect the flame and test the flame-sensor signal to verify proper operation. Besides confirming safe combustion, our technicians will also inspect your burners and igniter for issues.

In many cases, proper cleaning is enough to restore the signal. If the problem returns after cleaning, the flame sensor may need replacement, or the furnace may require further diagnosis to identify another underlying issue. Scheduling annual tune-ups and keeping up with routine maintenance can help you avoid repeat repairs.

FAQs

Why does my furnace start then shut off after a few seconds?

In most cases, this occurs because the furnace flame sensor is dirty and unable to confirm the flame. As a result, the control board shuts off the gas supply to prevent unburned gas from continuing to flow. However, other ignition and airflow problems can cause similar symptoms, which is why professional diagnostics are important.

Can I clean the flame sensor myself?

While cleaning the flame sensor might sound simple, the sensor sits in the burner assembly next to the gas valve. Because of the gas and combustion components involved, it is better to leave all sensor cleaning and testing to a technician.

How long does a flame sensor last?

A flame sensor can last for years, although buildup can slowly accumulate. Through regular maintenance, you can catch a weak signal before it fails unexpectedly in the middle of a cold snap.

Is a furnace that keeps shutting off dangerous?

The shutdown is a safety feature designed to protect your furnace, home, and family. While the shutdown itself is a protective response, the condition triggering it may require professional attention. If your furnace frequently shuts off, you notice soot, or there is a gas smell, you should call for repairs. For gas smells, immediately leave your home and call your gas utility provider.

Why did this happen suddenly in cold weather?

When the weather turns cold, furnaces are used more intensively. A previously marginal flame signal may finally fail under the heavier demand.

Diagnose Your Flame Sensor Issues

Struggling with your furnace lighting and quitting over and over again? Balance Point offers same-day diagnostics, flexible financing, and upfront pricing in Fort Collins and Loveland.

We’ll quickly confirm the cause of your furnace flame sensor issue, discuss your options, and help you take the next step without any pressure.

Schedule your evaluation in Northern Colorado today.

In Northern Colorado, it is common for ACs to experience late-season strain if the system is running low on refrigerant. A system may have coped with low refrigerant levels when temperatures were lower in the early summer, but the sustained afternoon heat is too much. Our wide temperature swings can also mask leaks during the early stages because homes can recover overnight. 

Identifying AC refrigerant leak signs now means you can make a considered decision before next summer arrives. If you are unsure if a leak is present, you can always reach out to Balance Point Heating, Cooling & Plumbing for a professional inspection.

Refrigerant Does Not Get Used Up

So, why does my AC keep losing refrigerant? Many homeowners assume that ACs use refrigerant like a car uses oil. However, this is not the case. Technicians do not have to top off refrigerant lines like you top off oil. Because refrigerant circulates in a sealed loop, the only way for the levels to be low is if a leak exists.

Simply adding refrigerant without finding the leak would be a waste of money. To stop this problem from recurring, it is essential to understand the AC refrigerant leak signs, schedule a proper diagnosis, and get the leak fixed.

How a Refrigerant Leak Shows Up

Most of the time, low refrigerant symptoms in an AC are relatively subtle. The problem will not simply announce itself, so the symptoms can gradually build over time. If you notice the following signs, it is time to schedule refrigerant maintenance and repairs.

• Cooling That Has Weakened Gradually: Low refrigerant levels can make a house take longer to reach the set temperature. You may notice that air coming from the vents is not as cold as normal.
• Longer Run Times With Fewer Results: Even though your system seems to be running nonstop, your performance levels have not improved.
• Ice on the Indoor Coil or the Refrigerant Lines: When pressure levels drop inside the coil, the temperature can fall below freezing. In turn, this can cause ice to build up on the coil or lines.
• Water Around the Indoor Unit: After iced-up coils and lines melt, you may notice water around the indoor unit.
• Hissing or Bubbling Noises: A hissing or bubbling sound near the line set or indoor unit can occur when refrigerant escapes from a leak.
• Short Cycling or Safety Shutdown: When pressure levels are outside a safe operating range, it can trigger a protective shutdown.
• Rising Cooling Costs: A leak may be present if you experience rising cooling costs without any accompanying change in habits.
• Oily Residue at the Connections or the Outdoor Unit: Because refrigerant carries oil, you may notice an oily residue if it leaks out of your system.

Where Leaks Usually Happen

There are a handful of common locations where leaks most often occur, which makes detecting the leak easier.

• Evaporator Coil: Formicary corrosion can cause pinhole leaks that are challenging to locate and costly to fix.
• Condenser Coil: Due to outdoor weather exposure, debris, and physical damage, condenser coils are also a common location for leaks.
• Line Set Connections, Flare Fittings, and Service Valves: All of these locations can develop leaks due to wear, deterioration, or vibration.
• Line Set: The location where the line set passes through walls can develop leaks. Leaks can also occur if the line set becomes damaged. 
• Schrader Valves and Access Ports: While these leaks are relatively common, they are known for being comparatively easy to find.

The location of the leak will affect how hard it is to find and the cost of repairs. This is the main reason why our technicians must locate the leak before we can create an accurate quote.

Why Topping Off Is Not a Repair

If you have an AC refrigerant leak in Fort Collins, you cannot simply top off the unit. Adding refrigerant will make it appear to run fine temporarily until the refrigerant escapes again. Over time, low refrigerant causes the compressor to work harder and run longer. This can eventually result in a compressor failure.

Repeated recharges add up over time. Rather than spend money on them, it makes more sense to invest in an actual fix or replacement. Our team can quickly locate the leak, evaluate whether a repair is necessary, then perform the recommended repair or replacement. Once the refrigerant lines are sealed, we can recharge the unit to the manufacturer’s specifications.

How a Technician Finds a Leak

Our technicians locate leaks through a methodical process. We start by taking system pressure and temperature readings to verify that a refrigerant problem exists. Then, we’ll inspect for signs of physical damage or oil residue. When necessary, we may use electronic leak detection, ultraviolet dye, or nitrogen pressure testing to find the source of the problem. Often, diagnosing leaks in the evaporator coil takes the longest because the coil sits inside the air handler cabinet.

Once we’ve determined the source, we can recommend the best path forward. In most cases, the next step is either a fitting repair, coil replacement, or AC replacement.

What Refrigerant Changes Mean for Your Repair

Refrigerant rules have been changing, and some homeowners have heard conflicting things. On January 1, 2025, the manufacture and import of new residential R-410A systems ended. Instead, new residential equipment now uses lower-GWP A2L refrigerants, like R-454B and R-32.

If you are worried about an AC Freon leak and your current system, there is no cause for concern. Your R-410A system remains legal to operate and service. The only difference is that refrigerant supply can tighten over time for older systems. If you have an aging system that requires significant repairs, this means that there is one extra factor to consider.

It should also be noted that A2L refrigerants cannot be used with an R-410A system. If you want to switch to an A2L refrigerant, you’ll need to replace the AC first.

FAQs

Does my AC need refrigerant? What are the signs of low Freon in an AC? To get a better understanding of how refrigerant repairs work and when an AC replacement is needed, check out some of our most frequently asked questions.

Does an AC need refrigerant added regularly? 

No. Because refrigerant circulates in a closed system, low levels mean there is a leak. 

Can I still run my AC with a refrigerant leak? 

While the unit will run if you have an AC refrigerant leak in Fort Collins, it creates strain on the compressor and leads to poor cooling performance. As a result, the best option is to get a professional diagnosis instead of continuing to run the unit.

Is a refrigerant leak dangerous to my family?

With most residential leaks, refrigerant disperses into the air instead of accumulating. Because of this, the biggest danger is to your equipment and bottom line. However, it is important to note that A2L refrigerants are mildly flammable, so timely leak repairs are necessary.

How long does leak detection take? 

It can vary based on the location. While a fitting or valve leak can be located relatively quickly, small evaporator leaks take more time and require more thorough testing.

Should I repair the leak or replace the system? 

It all depends on the location of the leak, the age of the equipment, and how repair costs compare to a replacement. A technician can help you compare repair costs to the price of a new AC unit.

Fix Your Refrigerant Leaks

Experiencing AC refrigerant leak signs in Fort Collins or Loveland? Balance Point offers same-day diagnostics with upfront pricing. Plus, our Whole Home Comfort Plan makes it easier to detect and prevent future leaks.

Our team will locate the leak, explain the problem, and walk you through the repair and replacement options with no pressure.

Your air filter is designed to improve your home’s air quality and protect your heating, ventilation, and air conditioning (HVAC) system. Over time, the filter can become loaded with dust, allergens, and other particles. Once this occurs, it must be replaced.

When it comes to how often to change an air filter, the general rule of thumb is not the best option for our region. Instead, we’ll take a look at replacement schedules based on your filter type, when filters should be changed early, and why timely replacements are necessary.

Why “Every 90 Days” Is Not a Real Answer

Whenever you’ve opened an air filter in the past, you’ve probably noticed that it says to change your filter every 90 days. In reality, the 90-day figure is a starting point and not the most accurate answer. This 90-day figure assumes an average household, with an average climate, and an average level of use. The problem is that very few homes are perfectly average in all three areas.

Your air filter replacement schedule will vary based on your filter thickness, household conditions, season, and air quality. Once you’ve figured out a basic schedule, there is a simple way you can check to see if your filter needs to be replaced early.

Filter Thickness Changes Everything

So, how often should I change my AC filter? The answer heavily involves your filter thickness. A thicker filter is capable of holding more material before airflow suffers, so you can stretch the intervals between changes. You must determine which filter type you have before you set up a replacement schedule.

1-Inch Disposable Filters: 30 to 90 Days

These filters should generally be replaced every 30 to 90 days, but replacements should occur more frequently during periods of peak use. In Fort Collins, you’ll need to check for signs of a dirty air filter monthly.

4-Inch and 5-Inch Media Filters: 6 to 12 Months

At a minimum, you should replace a 4-inch media filter every 6 to 9 months. A 5-inch filter should be changed every 9 to 12 months.

What Actually Speeds Up Filter Loading

Two identical homes on the exact same street can end up requiring very different filter replacement intervals based on the following factors.

• Pets: This is especially true if you have heavy shedders or multiple animals.
• Household Size and Activity: Increased foot traffic means there is more dust in the air.
• Smoke Season: When smoke season arrives, indoor air quality (IAQ) can decline as fine particulates end up indoors. 
• Construction and Renovations: New construction, like homes in the growth corridor, loads filters faster because of the added dust. 
• Allergies or Respiratory Issues: While your family’s allergies will not make the filter load faster, they will affect how frequently you need to replace it. Especially during peak allergy season, more frequent filter changes may be necessary to keep your family comfortable.
• Continuous Fan Operation: If you run the fan continuously instead of setting it to auto, the filter will need to be changed more often.
• Dry, Dusty Conditions and Wind Events: Northern Colorado’s climate can shorten baseline replacement intervals for local HVAC systems.

In Fort Collins and Loveland, our climate and local conditions mean that we tend to fall on the shorter end of published intervals.

A Seasonal Schedule That Fits Northern Colorado

The right filter change interval changes throughout the year, which is one reason why filters are so frequently changed at the wrong time.

Summer

During summertime in Northern Colorado, our systems run long cooling cycles each day. As fine particulates from wildfire smoke and haze move into the region, the filters become loaded much faster than they do during the rest of the year. Because of this, filters should be checked monthly.

Fall

Fall is the transition point. It is a practical moment for changing your filter before the heating season begins.

Winter

In winter, homes in Loveland and Fort Collins are often closed up. The same air is recirculated and heated, leading to dry indoor conditions that keep dust airborne longer. How often you need to change the furnace filter will be impacted by how intensely the furnace is used during our cold stretches.

Spring

During springtime, the Front Range experiences grass pollen, cottonwood pollen, and wind events that can clog air filters. Because of the added allergens and dust in the air, monthly filter checks are necessary.

No matter what season it is, you can easily determine if a new filter is needed by holding it up to light. If light won’t pass through the filter easily, it needs to be replaced. When you install the new filter, you should always write the date on it so that you can easily track when the next replacement is needed.

What a Dirty Filter Actually Costs You

Changing your air filter in Fort Collins isn’t just a housekeeping chore. It’s an important task for boosting your comfort, energy efficiency, and performance.

• Comfort: When airflow is restricted, your rooms receive less conditioned air. The far end of your home may struggle to cool off as quickly as the rest of the house.
• Operating Cost: Dirty filters force the system to run longer to reach the same temperature.
• Frozen Evaporator Coil: A dirty filter prevents air from flowing across the evaporator coil. Because this coil is designed to absorb heat, poor airflow can result in the coil icing up.
• Short Cycling: In heating mode, restricted airflow can cause overheating and safety shutdowns. 
• Equipment Strain: Over time, the blower must work against the added resistance. This increased wear can eventually lead to premature breakdowns and repairs.
• Indoor Air Quality: A loaded filter cannot do the job it is made for, so your home’s IAQ can suffer.

Choosing the Right Filter, Not the Highest Rated One

If you’ve ever wondered “What MERV rating should I use?”, you’re not alone. The MERV rating represents how effectively a filter captures airborne particles of specific sizes. A higher MERV rating means it is better at removing contaminants. 

Although it might intuitively seem that a higher MERV rating is always better, this is not the case. A denser filter restricts airflow more, which can be an issue if your system is not designed to handle it. The right filtration level balances your equipment’s abilities with your filtration needs. 

Most homes benefit from having a mid-range MERV rating. However, you should talk to your HVAC technician about your options if anyone in your home has allergies.

FAQs

For a deep dive into AC filters and airflow, check out some of our most frequently asked questions.

How often should I change a one-inch filter? 

How often to change the air filter is different in Northern Colorado. While the filter’s package might recommend 30 to 90 days, the real figure is closer to 30 days in our area. Ideally, you should check your filter at least once per month.

Do I need to change the filter in winter, too? 

Yes, you should change the filter in winter as well. In most Northern Colorado homes, heating and cooling systems share the same filter. Make sure to change the filter as part of your pre-winter checklist. Then, check it monthly to see if it needs to be replaced.

Can a dirty filter stop my AC from cooling?

It can. When the filter is dirty, it restricts airflow. This can result in poor cooling performance and a frozen coil.

Is a higher MERV rating always better? 

Not always. A denser filter will restrict airflow, which can cause added wear on a system that is not designed to handle it.

Does a washable filter work as well? 

Although washable filters can reduce waste, they are generally less effective at filtering fine particulates. Additionally, they must be completely dry before they are reinstalled.

What if I forgot when I last changed it? 

If you cannot remember when you last replaced the filter, go ahead and change it now. Then, write the date on the new filter frame so that it is easy to remember next time.

Optimize Your Home’s Airflow

Unsure how often to change your air filter? If you’re experiencing airflow issues in the Fort Collins or Loveland area, Balance Point Heating, Cooling & Plumbing offers the maintenance visits and upfront pricing you need.

As a Whole Home Comfort Plan member, you can take advantage of scheduled maintenance visits. We’ll make sure your filter and system are properly cared for, so you can enjoy a better level of comfort and energy efficiency.

Thanks to Northern Colorado’s dry air, an evaporative cooler can be a good choice for summertime comfort. Also known as swamp coolers, these systems cool your home by passing warm air over a moistened surface. While these systems work well during dry weather, they can struggle once late-summer humidity arrives in Fort Collins.

At Balance Point Heating, Cooling & Plumbing, we can evaluate your existing heating, ventilation, and air conditioning (HVAC) system to find the best setup for your home. To learn more about swamp coolers vs. central air conditioners, read on.

Why Swamp Coolers Are So Common in Northern Colorado

Do swamp coolers work in Colorado? Yes. There is a reason so many homes in Fort Collins have had evaporative coolers for decades. These units can be highly effective at cooling homes during dry weather conditions. The evaporative cooler is designed to pull in outside air across a water-saturated pad. This causes the air temperature to fall before the fan pushes the air into the home.

A swamp cooler only works if the air is dry enough. Dry air allows more evaporation, which improves cooling. If the air becomes humid, the evaporative cooler will struggle. Because of this, certain regions are better suited to this type of technology. By understanding when a swamp cooler vs. central air conditioner makes sense, you can make the right installation decision for your family’s comfort.

How Central Air Conditioning Works Differently

Central air conditioners function in an entirely different way. The system is designed to remove heat and humidity from the indoor air before recirculating it. It does not have to constantly pull in outside air.

Even if you do not know what type of system a home has, you can generally feel the difference. A swamp cooler adds moisture, so you have to open the windows to exhaust air. In comparison, central ACs remove moisture and are intended to work with a closed house.

This essential difference is what drives all of the other variations between the two setups. Comfort during humid weather, how your home feels at night, dust levels, and pollen exposure all stem from this functional difference.

Where Each System Actually Wins 

There is not one answer to whether an evaporative cooler vs. air conditioner is better. Instead, there are a few scenarios in which each HVAC system is better suited.

When an Evaporative Cooler Wins

A swamp cooler in Fort Collins tends to be the best choice if you care about a lower operating cost on dry days and efficient performance during the dry, early months of summer. This simple mechanical design is also ideal if you prefer fresh air over recirculated air.

When a Central AC Wins

Deciding to replace your swamp cooler with an AC may be the best choice if you want a consistent level of performance no matter how humid it is outside. Additionally, the AC’s humidity removal ability can make the same temperature feel cooler and more comfortable. Central AC systems are known for having quieter operation, no seasonal shutdown ritual, and excellent compatibility with a single thermostat and zoning. Plus, keeping the house closed can help reduce dust, pollen, and smoke infiltration.

For Fort Collins and Loveland homeowners, the choice generally comes down to how you want your home to feel during the humid weeks of the year and whether you want to open your windows. If you prioritize fresh air and are comfortable with reduced performance during humid weather, a swamp cooler is an effective option. An AC is a better choice if you want to keep allergens out and enjoy all-summer comfort.

The Signs Homeowners Notice First

Often, homeowners do not make their decision about converting a swamp cooler to central air on principle. Instead, each frustration adds up until they decide to make the switch. The following complaints are the ones we hear most often:

• The house feels sticky and damp during humid stretches and does not cool down.
• Open windows can let in pollutants and irritants, such as dust, wildfire smoke, and pollen. Street noise can make it harder to sleep at night.
• Your upstairs bedrooms remain warm all night, even though the swamp cooler is running.
• If you have a rooftop unit, water staining, mineral buildup, and roof access can make a swamp cooler challenging to maintain.
• Allergy symptoms worsen during the cooling season because windows have to be left open to let outdoor air in.
• Each spring, the unit’s pad, pump, and float need to be inspected, cleaned, or replaced as needed.

What Converting to Central Air Actually Involves

Once you’ve decided between a swamp cooler and central air, the next step is planning the conversion. Switching to a central AC is a bigger project than simply replacing one cooling unit with another. How much work is involved will depend entirely on your home.

The biggest variable is your ductwork. If you already have forced-air heating ducts, these can likely carry conditioned air with a few modifications. Other homes have evaporative-specific ducting or a single large ceiling register that cannot be used with a central AC. Homes that have boilers or radiant heat will not have any ducts at all.

When we set up your new AC, we’ll need to install an outdoor condensing unit, an indoor coil or air handler, refrigerant lines, and condensate drainage. We’ll also need to install the right-sized electrical circuit for the AC. Our team will handle the removal of your old unit, sealing the opening, and any wall or roof patching needed.

Ductless mini-splits are a good option if you do not have existing ducts. However, even if you opt for ductless mini-splits instead of a central AC, you’ll still need to have the old unit removed and all of the new components installed. 

Because of all the work involved, there is no way to provide a clear scope until we’ve had a chance to do an in-home evaluation. The total cost will depend on the ductwork requirements, home size, equipment needed, layout, and electrical capacity.

If You Are Keeping Your Swamp Cooler

Whether you’re concerned about energy efficiency on dry days or prefer having your windows open, there are situations where it makes more sense to have an evaporative cooler in Northern Colorado. If you do keep your swamp cooler, there are important maintenance and care tips that you should keep in mind.

As part of your annual maintenance, you’ll need to take care of the unit’s spring startup and pad replacement. Around midseason, check the water line, pump, and float for mineral buildup, leaks, or wear. Later on, the unit must be shut down in the fall and winterized to avoid freeze damage.

Late summer is a good point to decide if you want to keep your swamp cooler for next year. If you’re ready to make the switch, Balance Point can help you plan out the conversion before the next cooling season arrives. 

FAQs

To get a better understanding of whether an AC replacement is right for you, explore some of our most frequently asked questions.

Do swamp coolers work in Colorado? 

Yes, swamp coolers generally work well through much of Colorado’s cooling season, especially during hot, dry weather. Evaporative cooling is most effective in dry air, which is why these units work well for most of the year. In mid to late summer, humidity can rise, which makes these units less effective.

Why does my swamp cooler stop working well in August?

When humidity levels rise, less moisture can be evaporated. This lowers the cooling performance of the unit.

Do I have to leave windows open with a swamp cooler? 

Yes, swamp coolers need an exhaust path, usually through partially open windows, doors, or dedicated relief vents. If you want to keep your windows closed, you’ll need to switch to a central air conditioner.

Can I use my existing ducts for central air? 

Sometimes, existing ducts from forced-air heating can be adapted for central AC units. However, a swamp cooler’s ducts are usually not possible to adapt. During an in-home evaluation, we can determine whether your ducts can be used.

Is central air more expensive to run? 

Central air is normally more expensive to run on any given day, although this can vary based on utility rates, equipment efficiency, and other factors. However, these units are able to provide a consistent level of performance on humid and dry days. Unlike a swamp cooler, they do not need water to run.

Evaluate Your Home’s Cooling Options

Trying to choose between a swamp cooler vs. central air in the Fort Collins and Loveland area? Balance Point offers in-home evaluations, upfront pricing, and same-day estimates, so you can make an informed decision.

We will carefully analyze your ductwork and layout to determine what a potential conversion will involve. Then, we’ll discuss your options without pressure.

AC short cycling can occur for multiple reasons, making professional diagnostics essential. By determining the underlying problem, you can get your AC repaired or replaced before the next cooling season arrives. From testing your refrigerant levels to checking your airflow, Balance Point Heating, Cooling & Plumbing can help you find the right solution to your AC issues.

What Short Cycling Actually Looks Like

AC short cycling is when your system kicks on, runs for a few minutes, shuts off, and then turns on again a short while later. Even though the AC cycles repeatedly, the house never feels comfortable.

In normal circumstances, an AC might run for 15 to 20 minutes, two or three times per hour. On a hot Northern Colorado afternoon, a system will run longer to deal with the added heat, but the number of cycles will remain roughly the same.

Short cycling is simply a symptom and not a diagnosis. If your AC is cycling too frequently, you’ll need to determine the cause before you can address the symptom.

Why Short Cycling Is Worth Addressing

While your AC may still be able to cool when it short cycles, this problem still needs to be addressed. When the AC first starts up, it draws the most electricity. An AC that turns on and off repeatedly will use more energy. 

On the comfort side of the equation, short cycling can also result in stuffy, unevenly cooled rooms because a short runtime means less humidity is removed. Your AC will also feel the strain over time as repeated starts increase the wear on your compressor and controls.

The Most Common Reasons an AC Short Cycles

So, why does my AC keep turning on and off? Air conditioner short cycling tends to stem from issues with your unit’s airflow, heat rejection, or controls.

Restricted Airflow From a Dirty Filter

This is by far the most common reason, and it is also the easiest cause to rule out. A dirty filter means there is less airflow over your coil, which leads to your system shutting down as a protective mechanism.

The time of day can also indicate if you’re dealing with an airflow issue. A system that short cycles in the afternoon but appears fine in the evening is likely dealing with an airflow or heat rejection issue and not a control problem.

A Frozen Evaporator Coil

The evaporator coil is responsible for absorbing heat inside your home. When the evaporator coil freezes, the ice restricts airflow. The reduced airflow limits the AC’s cooling capacity, so the air coming from your vents may feel warm. If this situation is allowed to continue, the lack of airflow can cause the system to shut down on a safety control or keep operating inefficiently.

A Dirty or Blocked Condenser Coil

The condenser coil helps your AC release heat into the outdoor air. If the coil becomes clogged by Northern Colorado’s dust, cottonwood, or grass clippings, it will struggle to shed heat. The resulting high pressure can cause the compressor to trip. 

For homeowners in Loveland, Windsor, Timnath, and Fort Collins, this problem often occurs in late August. At the end of summer, we often experience long stretches of afternoon heat, haze from wildfire smoke, and excessive dust. After running from May onward, the outdoor coils can become blocked.

Low Refrigerant From a Leak

When your system has a refrigerant leak, it causes the pressure to drop below the unit’s safe operating range. As a result, the AC protects itself from damage by shutting down.

Thermostat Placement or Calibration

If the thermostat is placed near a window, in sunlight, next to a supply vent, or near your oven, it can sense the temperature incorrectly. When that happens, the thermostat may end the cooling cycle early or run it longer than the rest of the home needs.

Electrical and Control Faults

If your system has a worn contactor, weak capacitor, or a compressor tripping when it is overloaded, you can experience short cycling. When a capacitor is weak, it can draw excessive current and cause the system to overheat and shut down. Anything that overloads the compressor can lead to a safety shutdown. A worn contactor can cause intermittent power delivery or voltage drop.

An Oversized System

Many newer builds in the growth corridor were constructed with generously sized equipment. As a result, the oversized system is able to reach the thermostat’s temperature setting before completing a proper cycle. 

A Tripped Safety Float Switch

The safety float switch is designed to shut off your AC when it detects a rising water level in the condensate drain pan. This protects the AC and prevents water from leaking inside your house. Typically, a tripped safety float switch occurs when your drain line is clogged.

Reading the Clues: What Your Pattern Points To

By noting when and how the cycling happens, you can narrow down the cause of your Fort Collins AC short cycling.

• The Cycling Is Worse During the Hottest Part of the Afternoon and Better at Night: In this circumstance, you’re likely dealing with heat rejection issues. Your refrigerant charge, condenser coil, or outdoor fan is likely at fault.
• There Is Weak Airflow at the Vents Before the Cycling Starts: Often, this happens if you have an issue with your blower, filter, or coil.
• Ice Is Visible on the Indoor Coil or the Refrigerant Lines: This typically means there is a frozen coil, an airflow issue, or low refrigerant.
• The System Trips the Breaker and Makes a Humming Noise Before Switching Off: In many cases, this means that there is an electrical or compressor problem. For the safety of your home, family, and HVAC unit, stop resetting the breaker and call for repairs.
• Cycling Occurs No Matter What the Outdoor Temperature Is, and the House Cools Quickly Before Warming Quickly: This generally means that there is an issue with sizing or thermostat placement.
• Cycling Begins Right After a Thermostat Replacement or Smart Thermostat Upgrade: In this case, the likely cause is a problem with the wiring or configuration.

What You Can Safely Check Before Calling

Before you call for help with short cycling, unusual noises, and other symptoms, you can first rule out a few common issues on your own.

• Step 1: Check the filter and replace it as needed. Note how long it has been since the last replacement.
• Step 2: Verify that your supply and return vents are open and unblocked.
• Step 3: Clear away leaves, grass, and debris that are around the outdoor unit, but do not open the cabinet.
• Step 4: Check the thermostat mode and settings. Also, note whether the afternoon sun warms the thermostat.
• Step 5: Pay attention to when the cycles occur, how long they last, and how many minutes pass between cycles.

For your safety, you should never add refrigerant, open the electrical panel on the condenser, or bypass safety switches. If the breaker repeatedly trips, do not keep resetting it because there is likely an underlying electrical problem that must be addressed.

When To Call Balance Point

If the previous checks are unsuccessful, it is time to get professional help. We recommend booking repairs as soon as you notice the following signs.

• The system has a clean filter, but it cycles on and off more frequently than normal.
• Your breaker keeps tripping.
• The outdoor unit hums but does not start.
• There is visible ice on the refrigerant lines or the indoor coil.
• The house is not reaching the set temperature, even though the AC keeps turning on.
• The cycling started suddenly instead of gradually.
• Your cooling costs have increased, but there has been no other change in your family’s habits.

How a Technician Diagnoses Short Cycling

Once you reach out for help, our team will quickly perform airflow measurements, inspect the indoor and outdoor coils, measure the refrigerant pressure, and check the temperature readings. We’ll also verify that your thermostat is working, test electrical components, and review your cycle timing.

Ultimately, the type of AC replacement or repair you need will depend on which reading was out of range. This is why short cycling cannot be diagnosed by looking at the thermostat alone.

The good news is that late in the year is a good time for considering repairs and replacements. If our tests indicate that an aging or oversized system is to blame, late summer provides us with plenty of time to replace your AC before next summer’s first heat wave.

FAQs

For a better understanding of how short cycling works, explore some frequently asked questions.

How long should my AC run in one cycle? 

As the weather warms up, the cycles grow longer to cool your home. When your AC runs a few minutes then shuts off, it may be short cycling and should be inspected.

Is short cycling an emergency? 

It generally is not an emergency, but it can increase wear on your unit and lead to higher operating costs. Because of this, it is better to get the AC short cycling addressed earlier rather than later.

Can a dirty filter really cause this? 

Yes. Restricted airflow is a common reason why short cycling occurs. Fortunately, it is also easy to rule out.

My AC is new and it still short cycles. Why? 

A new AC may short cycle if it is oversized. It is reaching the ideal temperature too soon, so it does not complete a full cycle.

Should I keep resetting the breaker? 

No. Breakers are a safety feature. They are designed to trip when an electrical fault is present. If the breaker keeps tripping, you need to schedule an inspection.

Prepare Your AC for Next Summer

Is your AC turning on and off every few minutes? Balance Point offers same-day diagnostics with upfront pricing in Loveland and Fort Collins. From our Whole Home Comfort Plan to 100% no-interest financing, we work to make HVAC services as convenient as possible for local homeowners. 

Once you reach out to our team, we will quickly identify what is causing the AC short cycling. We’ll explain your options and help you decide on the next step without any pressure.

A slow stain spreading across your attic ceiling is always important to investigate. If your AC is leaking water inside your home, it can end up damaging your ceiling, walls, or flooring. By reaching out to Balance Point Heating, Cooling & Plumbing, you can quickly diagnose and fix your AC issues.

Why a Ceiling Stain Is Often the First Sign

If your AC is leaking water inside the house, you may notice a faint brown ring or soft spot on the ceiling beneath the attic. Many homes are equipped with attic air handlers, so water must leak downward through the insulation and drywall before the stain is visible. Because of this, you can have water leaking for quite a while before it is caught. Once a leak is discovered, the next step is determining the source.

Why an AC Produces Water at All

When an AC runs, it removes humidity from the air. The moisture condenses on the evaporator coil and drains into the drain pan. From there, it is removed via the drain line. If water appears anywhere outside the normal condensate drainage path, some part of that path has failed. Attic and closet units carry a higher risk level than basement units because of the finished living spaces beneath them.

Most Common Reasons an AC Leaks Water Indoors

There are a few common reasons for an AC leaking water inside.

Clogged Condensate Drain Line

When the drain line becomes blocked by algae or debris, water backs up into the drain pan and overflows. By far, this is the most common reason for an AC-related leak.

Failed Condensate Pump

In systems that use a pump, the pump is normally responsible for moving water against gravity and out of your home. If the AC condensate pump fails, the reservoir will overflow. 

Cracked or Rusted Drain Pan

A cracked or rusted drain pan will allow water to leak out, even if the drain is clear.

Frozen Evaporator Coil Thawing Out

Dirty coils, clogged filters, low refrigerant, and other problems can cause an evaporator coil to freeze. As the ice starts to thaw, it can melt too quickly for the pan to drain, leading to an overflow.

Poor Drain-Line Pitch or Installation Issues

If the drain line does not have the right pitch or is installed incorrectly, water will not flow out of your home the way that it should.

A Full Secondary Pan

Some attic units are equipped with a backup pan that can fill if the primary pan fails or overflows. If this pan also becomes overfilled, your first clue may be a water stain on the ceiling under the AC.

Reading the Clues: What Your Symptoms Point To

From sweaty vents to clogged condensation drains, Balance Point can help diagnose and repair common heating, ventilation, and air conditioning (HVAC) issues. By noting the pattern of when different leak-related symptoms happen, we can narrow down the cause significantly.

• Water Appears Without Any Change in Cooling Performance: This likely means there is a problem with the drain line, pan, or pump.
• Weak Airflow or Ice on the Unit Prior to the Leak: Often, ice and weak airflow mean you may have a frozen coil. Likely caused by a dirty filter, restricted airflow, or refrigerant issue.
• The System Shuts Off on Its Own: This can occur if the safety float switch is tripped to prevent water from overflowing into your home.
• A Ceiling Stain With No Visible Puddle Upstairs: If this occurs, water is being absorbed by the insulation and drywall as it accumulates.

Safe First Steps Before You Call

There are a few safe steps you can take to protect your home while you wait for one of our HVAC technicians to arrive.

• Step 1: If there is an active water leak, turn off your system to avoid producing more water.
• Step 2: Protect your flooring, furniture, and belongings from the leak.
• Step 3: Check your air filter and change it as needed. Dirty air filters are a frequent contributor to frozen coils.
• Step 4: Note where the water shows up, how long it has been there, and any changes to your cooling performance. Then, share this information with the HVAC technician when they arrive.

If your Fort Collins AC is leaking water, you should never attempt a drain-line repair on your own. Do not bypass the safety float switch or try to cut into the ceiling. Additionally, do not restart the system in an attempt to make it work. To avoid water damage and more costly repairs, you should wait for our team to arrive.

When To Call Balance Point Right Away

When we come out to your home, we can quickly determine if a basic repair or AC replacement is needed. If you notice any of the following symptoms, you should reach out to our team right away.

• A ceiling stain, soft spot, or sagging wall develops directly below the attic unit.
• There is visible ice on your unit or refrigerant lines.
• You have a leak that keeps returning after it appears to stop.
• There is water actively dripping or pooling around the indoor unit.
• Your system shut itself off and won’t restart.

After we fix the problem, regular filter changes and routine maintenance can prevent it from happening again in the future. With our convenient maintenance membership, you can take advantage of two complimentary tune-ups per year, special promotions, and discounts on repairs.

How a Technician Finds the Source

Once you call our team about an attic air handler leaking, we’ll quickly come to your home to perform a full drain-line inspection and cleaning. We’ll inspect the pan for damage, test the condensate pump, and check your coil. Then, our team will evaluate your airflow. 

While it might seem like the problem is simply the leaking water, the real issue may be upstream of the water. When an AC installation runs through finished space in an attic, it is essential to take extra time finding the underlying cause.

FAQs

Indoor water leaks raise a lot of practical questions, especially when the unit sits in an attic above finished space. The answers below cover what homeowners ask most often about ceiling stains, drain-line clogs, and whether the system is safe to keep running. If your situation does not match any of these, our team can walk you through it during inspection.

Can I still run my AC if it is leaking water? 

In general, you should not run an AC that is leaking water because this will only lead to more condensate and water. Instead, shut it off and schedule your next HVAC service.

Why is there a water stain on my ceiling but no puddle in the attic? 

For the stain to appear, the water must first soak into the insulation and drywall. It takes time to travel through these materials, so the stain only appears after the leak has been going on for an extended period of time.

Is a clogged AC drain line an emergency? 

A clogged AC drain line is not necessarily an emergency, but it still needs to be taken care of right away. Especially if the line is in your attic, the risk of water damage to your living space is higher.

Why did my AC shut itself off when it started leaking? 

Many systems are designed with a safety float switch, which automatically shuts the AC off if the water backs up. This is a protective mechanism to keep your AC drain pan from overflowing.

Does a leaking AC always mean the drain line is clogged? 

Not always. If there is a frozen coil, cracked pan, or failed pump, you can also notice indoor water accumulation. By considering the symptoms involved, you can narrow down the potential cause.

Fix Your AC Leak

Water stain on the ceiling under your attic unit? If your AC is leaking water inside, Balance Point can help. We offer same-day diagnostics and upfront pricing in the Fort Collins and Loveland area.

Our team will determine the source of the problem, clearly explain the options, and help you make your decision without any pressure.

Book your next AC service today.

When a musty odor starts to drift from your vents, it can inspire an immediate sense of alarm. While mold and mildew scents are never a good sign, they are often relatively easy to fix. By reaching out to Balance Point Heating, Cooling & Plumbing, you can get professional diagnostics for your cooling problems.

So, why does my AC smell? To learn more about this problem and how to solve it, read on.

What a Musty AC Smell Usually Means

In the majority of cases, an AC smells like mildew because there is moisture sitting somewhere in the system that is allowing microbial growth. This often happens on the evaporator coil, in the ductwork, or in the drain pan.

An AC is designed to remove humidity from the air as it cools, which is why the indoor unit is naturally damp. If this moisture does not drain away, it can cause musty odors. Fortunately, this problem is relatively common and easy to diagnose.

Why the Musty Smell Happens

Why does my AC smell? In general, there are a few common reasons why a musty odor may occur.

• Dirty or Damp Evaporator Coils: Normal condensation and dust on the coil’s surface can lead to microbial growth. This problem is especially common if the evaporator coil freezes.
• Clogged Condensate Drain Lines: If the drain line is clogged, stagnant water will sit in the drain pan and line. Eventually, this can result in mold and mildew growth. Besides a clog, this symptom can also occur if the AC pump stops working.
• Standing Water in the Drain Pan: Any time you have a cracked pan or poor drainage, water can remain in the pan long enough to cause microbial growth.
• Damp or Contaminated Ductwork: Damaged or leaky ducts allow moisture to get inside the ducts and into your home.
• Dirty Filters: A dirty filter can hold moisture and debris, making it a common source of musty odors. Fortunately, this is also one of the easiest causes to troubleshoot.
• Unused Systems: Often, musty odors will be the strongest when you first turn on the unit at the beginning of the cooling season.

Other AC Smells and What They Mean

In addition to musty smells from the air vents, there are a few other odors that can occur if there is a problem with your unit.

Burning or Electrical Smells

This scent may occur if there is a problem with your wiring, a component failure, or an overheated motor. Burning odors are an immediate emergency, so shut off the unit and call us right away.

Rotten Eggs or Sulfur

A rotten egg smell can occur if there is a natural gas leak. Do not try to troubleshoot this issue. Immediately leave your home and call your gas utility. Afterward, you can schedule service.

Dirty Sock Smells

This odor is often due to bacterial buildup on the coil. If you’re concerned about your indoor air quality (IAQ), we can perform a full IAQ evaluation.

Chemical or Sweet Smell

If you smell a sweet, chemical odor, it may be due to a refrigerant leak. Recharging the AC system with refrigerant and repairing refrigerant leaks can only be done by a certified technician.

Exhaust or Oil Smells

These odors could indicate a mechanical or fuel-related issue.

Smoke or Dusty Smells During the First Startup

Often, these odors only occur at startup as the dust burns off. The smell should go away within just a couple of minutes.

Any burning or sulfur odors are a sign you should shut off your AC immediately. For sulfur odors, you should also leave your home and call the utility company for help with the potential gas leak.

Safe Checks Before You Call

As a homeowner, you can generally perform basic maintenance and visual checks on your own.

• Check 1: Inspect and replace the air filter if it appears to be dirty or damp. At a minimum, the air filter should be replaced every 30 to 90 days.
• Check 2: Check for standing water and debris around your indoor unit or drain pan.
• Check 3: See if the condensate drain line is clogged or kinked.
• Check 4: Pay attention to when and where the smell occurs so that you can relay that information to the heating, ventilation, and air conditioning (HVAC) technician. 

For the safety of yourself and your HVAC system, never open sealed systems or try cleaning coils with harsh chemicals. You should also leave any refrigerant-related work to certified technicians. If you notice a burning odor or gas smell, shut off the system immediately.

When To Call Balance Point

From carbon monoxide issues with furnaces to purifiers for spring allergens, our team can help you address complex HVAC issues. If you notice any of the following signs, it’s time to call for professional repairs. 

• Burning or electrical smells, which are a sign the system must be shut off immediately
• Musty odors that continue after you change the filter
• Rotten egg smells, which are a sign you should leave and call your gas utility before doing anything else
• Smells that spread to multiple rooms or that worsen over time
• Visible standing water, mold, or a clogged drain line
• Household members experiencing worsening allergy and respiratory symptoms when the AC is on

How Maintenance Prevents AC Smells

Many of the causes of musty odors can be prevented through routine maintenance. Maintaining clean coils, preventing moisture buildup, and clearing the drain path can help you avoid most instances of musty odors. Through Balance Point’s membership plan, you can stay on top of your annual AC tune-up and ensure a comfortable home this summer.

FAQs

Does a musty AC smell always mean mold? 

Not always. If your Fort Collins AC smells musty, it generally means that there is moisture somewhere where it should not be. Some type of microbial growth is happening, although it isn’t necessarily mold. By scheduling an HVAC appointment, you can confirm the source of the problem.

Why does my AC only smell when it first turns on?

Most odors are stronger when the unit first starts up. This is especially true at the start of the cooling season because moisture and dust have remained undisturbed all winter long.

Can I get rid of the smell by changing the filter? 

This solution can work if a dirty, damp filter was the cause of the problem. If you still notice the odor after changing the filter, the actual cause is likely your drain, coil, or ducts.

Is a burning smell from my AC an emergency? 

You should always treat burning odors like an emergency. When an AC smells like it is burning, it is often due to electrical faults and overheating motors. Because of the potential for HVAC damage and fire hazards, you should immediately shut off the system and schedule service.

What should I do if my AC smells like rotten eggs? 

If you notice your AC smells like rotten eggs, you should evacuate your home and contact your gas utility right away. An odorant is added to natural gas so people can detect gas leaks. Do not wait to get help if you notice this smell.

Resolve Musty Odors in Your HVAC Equipment

If your AC has developed an unusual odor, Balance Point can help. We offer same-day diagnostics and upfront pricing in Fort Collins and Loveland.

We will find the source, explain your options clearly, and help you decide the next step without pressure.

Book HVAC repair services to find a solution.

When the first summertime heatwave arrives, you need a well-maintained ductless mini-split system to keep your home comfortable. If your mini-split is not cooling properly, there are a few potential problems that may be at fault. By working with Balance Point Heating, Cooling & Plumbing, you can get your mini-split problem diagnosed and repaired quickly.

How a Mini-Split Is Different

A ductless mini-split functions differently from a central AC. It pairs an outdoor unit with one or more indoor heads directly, so no ductwork is needed.

Because of how the unit is designed, you’ll troubleshoot differently when the mini-split is blowing warm air or not functioning properly. Each head is controlled separately and has its own filter, so problems in one mini-split zone do not necessarily affect other zones as well. 

Often, the complaints we hear about a ductless mini-split not cooling stem from settings or a dirty filter. Because of this, we recommend performing basic mini-split troubleshooting steps first.

Check the Settings First

A mini-split remote offers modes that aren’t on a central AC thermostat. Because of this, it can seem like the system is broken, but it is merely set to the wrong mode.

• Wrong Mode Selected: If the unit is set to dry, fan, or heat mode instead of cool, it won’t provide cooling.
• Temperature Setpoint Too High: The mini-split’s temperature setpoint must be below the current room temperature, or it won’t call for cooling.
• Fan Speed Set to Low or Quiet: While your mini-split will continue to cool if it is set to low or quiet, it may feel like it is cooling significantly less.
• Timer or Sleep Mode Active: Mini-splits can be set to a schedule. When homeowners forget that the unit is set to sleep mode, it can seem like the unit isn’t working right.
• Vane or Airflow Direction Misaligned: If these components are angled incorrectly, parts of the room won’t be cooled properly.

We’ve found that simply checking the unit’s remote settings is one of the fastest ways to resolve many cooling complaints.

Check the Filters and Airflow 

While mini-split filters are easy to reach and clean, they are often forgotten about. Eventually, a dirty filter can lead to a frozen coil.

• Clogged Indoor Head Filters: This is the most common cause of a mini-split not cooling. You can easily lift the filter out of the indoor unit and rinse it to clean it.
• Dirty Blower Wheel or Coil in the Head: If either of these is the issue, you’ll need to schedule a professional cleaning appointment.
• Blocked Outdoor Unit: When the outdoor unit becomes blocked by vegetation, debris, or snow, it can restrict the release of heat.
• Furniture or Curtains Blocking the Indoor Head: Obstructions near the indoor head are quite common. Fortunately, they are easy to correct on your own.

System-Level Causes That Need a Technician

If your filter and temperature settings are normal, it’s time to troubleshoot other reasons why your mini-split system isn’t cooling.

• Low Refrigerant or a Refrigerant Leak: In this situation, the system will run, but it will fail to remove heat. This must be fixed by a licensed technician and is never a DIY repair.
• Failed Capacitor or Compressor Issue: When this type of problem occurs, the outdoor unit will struggle to start or run properly.
• Outdoor Fan Motor Failure: If the fan motor fails, the system will not be able to release heat outside.
• Frozen Coil in the Indoor Head: This may occur if there is a refrigerant or airflow issue.
• Control Board or Communication Fault: When these components stop working, the indoor and outdoor units cannot communicate with each other.
• Undersized or Poorly Placed Head: If the head is not sized appropriately for your space, the entire room will struggle to reach the right temperature.

When Only One Zone Is Not Cooling

Having a multi-zone system is useful for narrowing down the potential cause. If a mini-split is not cooling one room, you know that the problem is likely with the head’s filter, settings, or components. When none of the heads will cool, you’re likely dealing with a problem in the refrigerant circuit or outdoor unit.

To help speed up diagnosis, note which heads work. Then, relay this information to the heating, ventilation, and air conditioning (HVAC) technician when you call for repairs.

Safe Checks Before You Call

Before you call about a mini-split running but not cooling, there are a few basic checks you can do on your own.

Check 1: Confirm the Remote Settings

Verify that the remote is set to cool mode. The setpoint should be below room temperature.

Check 2: Clean Indoor Head Filters

Check for dirty filters by removing each indoor head filter and cleaning it.

Check 3: Clear Debris

Check the outdoor unit for blockages. Clear away any debris that is within 2 to 3 feet of the outdoor unit.

Check 4: Note Any Symptoms

Pay attention to which zones cool and which ones do not. Also, note any error codes that appear on the head display.

No matter what, you should never handle refrigerants or open the outdoor electrical components. Do not open the indoor head for anything other than filter access. If error codes appear, do not interpret them yourself. Instead, call our team for Fort Collins mini-split repairs.

When To Call Balance Point

Whether you’re struggling with an unexpected cooling failure or want an energy-efficient installation, Balance Point is here to help.

• Your cooling remains weak after you’ve checked the settings and cleaned the filters.
• There is ice on the refrigerant lines or the indoor head.
• The head display shows an error code.
• Your outdoor unit won’t run, or it runs and shuts off repeatedly.
• A burning odor or unusual noise is coming from either unit.

If your mini-splits aren’t cooling, Balance Point offers same-day repairs and 100% no-interest financing. Learn more by giving us a call today.

FAQs

Why is my mini-split running but not cooling? 

If your ductless mini-split is not cooling, the most common reasons are a clogged filter, a blocked outdoor unit, or the wrong thermostat mode setting. You can quickly troubleshoot these issues on your own. If your troubleshooting is ineffective, then there is likely a refrigerant or HVAC component problem that should be addressed by a professional.

How often should I clean mini-split filters? 

These filters should be checked and cleaned more often than most homeowners realize. We recommend checking mini-split filters at least once a month during periods of heavy use. They should be cleaned as often as needed. 

Why is only one of my mini-split heads not cooling?

When only one mini-split head fails to cool, it is likely a problem related to that head and not the entire system. For example, this can occur due to the head’s components, the filter, or your settings.

Can I add refrigerant to my mini-split myself? 

No. Anyone who handles refrigerant must be federally certified. It also requires specialized equipment that isn’t available at your local hardware store. Additionally, low refrigerant only happens if there is a leak, gap, or some other issue allowing refrigerant to escape, so you need a technician to find and repair the leak.

What does an error code on my mini-split mean? 

The error codes are different for each manufacturer, so don’t try to interpret them on your own. Note which error code you see and share it with your technician when they arrive.

Keep Your Fort Collins Home Cool This Summer

Checked all the causes and still struggling with a mini-split not cooling? Balance Point offers same-day diagnostics and upfront pricing in the Fort Collins and Loveland area.

Our team will find the cause, explain your options clearly, and help you decide the next step without pressure.