My Air Conditioner is Not Blowing Cold Air

Nothing is as frustrating as entering your house and finding your air conditioner does nothing but blow hot air. You’ve come to count on your AC system, and now it has suddenly failed you when you needed it most. When this happens, you will be determined to get your unit back up and running as quickly as possible. Ultimately, you will probably need to call in an HVAC professional, but, before you do so, there are a few tips you can try yourself.

The Thermostat

Check the thermostat on the indoor unit. If it is turned to “on”, then the fan will blow hot air even when the cooling system is not engaged, making your air conditioner appear to be broken. Switch the thermostat to “auto,” so that the fan only blows cold air when the system is engaged.

A Dirty Filter

If your thermostat is on “auto” and your air conditioner is blowing hot air anyway, try checking the unit’s filter. If it is completely dirty, then it is time to replace it. The new filter will likely get the air conditioner working again.

Blocked Outdoor Unit

The next thing to check is the outdoor unit. This contraption is meant to expel the hot air from your house, but if it is covered by dirt or debris then it will not be able to function properly. Try cleaning it off to see if that improves the performance of your air conditioner.

A Tripped Breaker

The last possible problem you can check on your own is a tripped breaker. A tripped breaker on the outside unit will cause the air conditioner to blow hot air into the home. Switch the breaker on again, and everything should return to normal.

Problems That Require an HVAC Professional

If all of these measures fail, then it is time to call an HVAC professional. Your air conditioner is probably suffering from one of several potential problems, including a refrigerant leak, leaky ducts, or a bad compressor.

Another potential problem is a broken or unconnected return duct, which will cause your AC unit to draw warm air from outside or the attic. This is an issue that a HVAC professional will be able to check for and repair.

If your air conditioner needs repair, contact us today so we can send an HVAC professional your way. It's a simple move that will make your home once again the cool refuge from the heat that you deserve.

Contact Ardmore Fresh Air at (847) 792-1019 for your next appointment or any questions regarding our blog articles! In a hurry? Schedule your appointment online now.