In the United States, around 75% of homes have air conditioning. 

More and more homeowners are turning to air conditioning as the temperatures increase and heatwaves become more common. You have an air conditioner, but what if the air conditioner is blowing hot air?

Air Conditioner Is Blowing Hot Air 

Your air conditioner is supposed to keep your house cool and comfortable and now the air conditioner is blowing hot air. If this happens to you, there are a few reasons that may be easier to repair than you believe that could be causing the problem. Let’s take a look at what some of the options are. 

Check Your Thermostat 

Before you call in a technician for air conditioner service and repair, make sure that the thermostat is set to cool and the temperature is low enough for it to work. Thermostats can sometimes be set to heat, by a simple accident and it would be a shame to have to pay a technician to figure that out for you. 

If the thermostat is set right but the problem persists, it could still be your thermostat. If the thermostat isn’t installed by a professional this can cause a lot of problems. You won’t be able to tell, but the technician you call will be able to ascertain whether or not the thermostat is to blame. 

Check The Air Conditioner Filter 

Air conditioner filters do more than protect indoor air quality, IAQ. They also keep dirt and debris from building up inside the air conditioner. If a filter is clogged then the system won’t be able to pull air through like it needs, and this can lead to the system not being able to cool down the air that it is releasing. 

In addition to not blowing cool air, this will put a great deal of strain on the air conditioner. One of the main reasons why air conditioners don’t work the way they are supposed to is that they aren’t maintained. Keep the air filter changed and consider an air duct cleaning service, you will not only avoid problems, but you’ll also prolong the life of your air conditioner. 

The reason for the duct cleaning is that a leak in the ducts can also cause the air to not be cold. If your unit has years of dust and dirt built up in it, it won’t be easy to find the leak. A cleaning could make the job a lot easier so that you can find and eliminate the problem. 

Check The Circuit Breaker Box 

Not every air conditioner is installed the right way, and if you just moved into your property the AC unit may be blowing breakers. This is often done if the wiring wasn’t right, or if the fuses have gotten old and need to be replaced. The AC should have a double fuse or a larger fuse than normal because of the volts it needs. 

If you hear a pop from the breaker box and then notice the air conditioner is blowing warm air, this is likely the cause. Sometimes the problem is as simple as just flipping back the breaker, but if that doesn’t work or if the breaker isn’t flipped, then it is time to move onto other possibilities. 

Check The Condenser 

The condenser fan and unit are what pulls air in so that heat energy can be removed before air is returned to your home. If the condenser unit or fan is blocked or not functioning, the issue becomes clear. No air conditioner can work without the condenser being able to function as it is designed to. 

If the condenser doesn’t appear to be clogged or dirty, make sure that the fan is spinning. If the compressor is on and the fan is not turning, then you know that there is a problem. If this turns out to be the case, it may be time to get a professional technician to come out for AC repair. 

Make Sure The Compressor Works 

When your air conditioning turns on, do you hear the compressor begin to work? Shortly after the fan, you should hear another noise, a distinctive noise that tells you the compressor is working. If you don’t hear that, then you may have a larger AC issue, compressors can be expensive. 

An HVAC technician will be able to determine if the compressor is the problem just by listening or at the very least a short inspection. This is often a problem if your air conditioner is older, as the compressor can go out after it has reached a certain age with little or no warning. 

Coolant Leak 

You may be having a coolant leak, there could be a hole too small for you to see that is allowing the refrigerant to leak out. If this happens you could notice additional issues, like the pipes and ducts going into and out of your air conditioner freezing up. If you notice any ice, turn the system off and let it thaw before continuing. 

Listen For Odd Noises 

One of the best ways to determine if your air conditioner is having issues before they become apparent is to listen to the unit run. If you notice any unusual noises, then there’s a good chance that a problem or more expensive repair is on the horizon. This is the best time to contact a professional to have your air conditioner checked. 

In order to prevent or head off a lot of the reasons why your air conditioner could be blowing warm air have regular maintenance done. At least once a year, call a technician out and let them go over your system. 

Air Conditioners and Maintenance  

Having a working air conditioner is not really a luxury anymore, it is a necessity, with heat advisories becoming ever more common, hot air can be a real danger. If you have any questions or want your system looked over, contact us. Minnick’s serves the central MD area, and we fix your unit if your air conditioner is blowing hot air.