Why Does Your AC Blow Hot Air? It Could Be a Number of the Following Reasons…

It is the first hot day of the year, you turn on the AC and guess what, there is hot air when cool air should be blowing freely! Sometimes the reason this happens is very simple. Maybe you forgot to switch your thermostat from heat to cool. If that is not the reason here are some other common problems that will cause hot air to blow out of your AC.

Check the Breaker Switch

Your air conditioning system is made up of two main components – an outdoor unit and an indoor unit. The indoor unit houses the fan that blows air through your home, but, long story short, it can only blow cool air if the outdoor unit is working. So if air is blowing out of your vents but it’s not cold, it could be that the circuit breaker has tripped or the fuse has blown on the electrical circuit that provides electricity to your outdoor unit. Check your circuit breaker or fuse panel to make sure the circuit is supplying electricity to the outside air conditioning unit. If the circuit breaker was tripped or fuse blown by the AC, you need to call a professional immediately as there could be a major problem. 

Check the Freon

Your AC needs refrigerant (or Freon) to cool your home. Sometimes, due to stress or other damage to your unit, parts are loose or cracked, and the refrigerant leaks out. It happens very quickly and can be difficult to notice because you do not see evidence of a leak. Refrigerant can be topped off; so call your professional to inspect your unit.

Could It Be Your Filter?

Chances are, your thermostat is set to cool, and you’re still getting hot air. Now what? The cause could be a dirty evaporator coil caused by a dirty air filter. This keeps your air conditioner from properly cooling your home. You can change the filter, but you will need a professional to clean the coil. Not only is a dirty filter energy inefficient, but it can also cause your AC to stop working. Change it every month, just to be safe.

Could It Be Frozen?

Did you have your thermostat set for 65 in the winter and not change it? To avoid freezing your unit, don’t turn the thermostat down drastically. Aim to keep it steady at 72°F, which should help avoid freezing. A frozen AC unit will blow hot air. The reason for this is that the coils and other components are frozen, but the motor still runs. Simply turn off your AC to thaw the frozen unit. After about 2 or 3 hours, the AC should be thawed and you should be oka to turn it back on.

Best Advice

Get AC maintenance done during the spring. Keeping an eye on these problems will not only keep your air conditioner from blowing hot air, it will also prevent a costly breakdown. And the last thing you want is a breakdown during the summer. So it only makes sense to get preventative maintenance done during the spring before it gets too hot.

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About Phoenix Comfort Systems

Phoenix Comfort provides a full range of air conditioning and heating repair, installation, and maintenance services for residential and commercial customers. We keep your air conditioning and heating systems in their best condition and ready to go when you need them most, following the industry’s “best practice” methods and standards. Phoenix Comfort carries a full line of quiet, energy-efficient air conditioning and heating equipment.
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