Warm air coming from the air conditioner is extremely worrisome. The air conditioner should essentially be blowing cold air. You must take fast action to fix your air conditioner as soon as it begins to blow hot air. Therefore, you must first determine why the air conditioner is blowing warm or even hot air.

Reasons  Your AC is Blowing Warm Air

1. Dirty Air Filters

The most frequent cause of an ineffective cooling system is this. A unit’s air filters can become clogged and result in several issues. Even the operation of your thermostat may be affected. The flow of cool and warm air via the ducts is obstructed if the filter is dust-clogged and dusty. The evaporator coils then freeze, as a result, causing your home’s air conditioner to blow heated air. This is why it’s crucial to frequently change the air conditioner filters as part of maintenance.

An air conditioner that uses clean filters can continue to work smoothly for a longer period. You might spend less on energy as a result. At least every three months, or as necessary, clean or replace your filthy filters.

2. Dirty Evaporator Coils

Evaporator coils, which are found in the indoor air handler unit, are essential to your AC system’s ability to chill the air. It is where refrigeration is used to absorb the hot air and cool it. However, these coils are susceptible to being soiled or blocked, which limits their capacity to effectively chill the air. If this is the case, your air conditioner may have trouble effectively cooling your home and may instead vent heated air.

Even though a qualified specialist might be better, you can clean the coils by yourself by following these steps:

1. Completely shut off the AC unit, ideally at the panel and breaker.
2. Find the coils. They will reside close to the blower fan in the air handler. If you are having problems locating them, you might need to refer to the handbook or other resources.
3. Combine warm water and standard household cleaning detergent in a spray bottle.
4. Allow the solution to settle for up to 10 minutes after spraying.
5. Use a delicate cloth to gently wipe the coils of any debris.

3. Condensate Line is Clogged

Condensation is produced in large amounts throughout the heating and cooling cycle of your air conditioner. This moisture is transported outside via the condensate line, usually from an exterior wall of your house, where it empties. The atmosphere around the drain line is continually moist, so it’s common for the buildup to take place, including mold or even algae. When the line is blocked, your AC system cannot effectively remove humid air, which results in heated air being circulated throughout your home.

4. Refringent leakage

Low refrigerant is among the most frequent causes of AC blowing heated air. To keep your unit operating at its peak efficiency, you need a refrigerant. It is the fluid that takes moisture and heats out of the atmosphere. If your air conditioner isn’t chilling, the refrigerant may be leaking and there isn’t enough of it to efficiently cool your home.

Unfortunately, the solution is more complicated than just changing the refrigerant. It can take a long time and money to locate the leaks and fix the holes. If it isn’t corrected right away, the compressor motor can even get hurt. Hissing or bubbling noises and an accumulation of ice on the outside unit are two telltale indicators of a refrigerant leak.

Call your technician as soon as you suspect a leak is to blame for the low refrigerant in your air conditioner. It’s critical to have a refrigerant leak repaired as soon as possible since it poses a risk to health and safety.

5. Thermostat Problems

Your home’s air conditioner may be producing heated air if there are issues with the thermostat. When antique dial-type devices are calibrated incorrectly, this frequently occurs. Verify that your thermostat settings are accurate if you still have access to the air conditioner’s instructions. You might have your thermostat replaced or recalibrated if the issue continues.

Your home’s air conditioner may be producing heated air if there are issues with the thermostat. When antique dial-type devices are calibrated incorrectly, this frequently occurs. Verify that your thermostat settings are accurate if you still have access to the air conditioner’s instructions. You might have your thermostat replaced or recalibrated if the issue continues.

A programmable thermostat is one example. Older control systems frequently have problems. You can consistently maintain the temperature inside your home using a programmable thermostat. The cost of purchasing one will be justified by the energy savings.

6. Dirty Condenser Coils

The condenser coils in your air conditioner are in charge of extracting heat from the air and releasing it outside of your home. They constantly come into contact with the weather because they are an outdoor item, and as a result, dirt and grime build up on the coils over time. Heat transport is impeded by this. When warm air from your air conditioner fills the house, you will start to notice this. The device as a whole is put under unnecessary strain by the filthy coils, which increases component wear and tear.

To ensure that your condenser has enough room to breathe, clean the exterior unit frequently. Clear the area around the unit of vegetation and debris, and then hose it off to get rid of any caked-on dirt. Before cleaning, remember to turn off the electricity.

7. Duct Leaks

If there is a significant enough leak in the ductwork of your home, warm air may be expelled from your vents. Your home’s ducts distribute cool air throughout, but if there is a leak, warm air may mingle with the already-cooled air and blow out of your vents warmer than usual. Problems with ductwork should always be handled by a specialist. Every three to five years, get your ductwork cleaned or serviced to avoid many of these issues.