Why Is My Air Conditioner Blowing Hot Air?

AC Unit Not Cooling? Here’s Why…

The temperature is starting to heat up as we head into the summer season, which means that you’re going to want your air conditioner to be working as effectively as possible. If you turn your air conditioning unit on and it begins blowing hot air, then obviously something is wrong.

The last thing you want your air conditioner to do is to heat your home instead of cooling it, after all.

Reasons Your Air Conditioner Blows Hot Air

The following are a few reasons why your air conditioner may be blowing hot air:

Your outdoor unit is clogged – Central air conditioner systems make use of two units – one of which is located outside of your home. These units work in tandem to remove heat from your home. However, it needs unrestricted airflow to the condenser coil located in the outdoor unit to be able to do this.

If the outdoor unit is clogged up with dirt, leaves or other debris, it will restrict the airflow, causing the indoor unit to blow hot air. Just clean the outdoor unit in order to remove whatever was blocking the airflow.

Your outdoor unit has lost power – In some cases, the outdoor unit may have lost power while the indoor unit continues to operate. This can result in warm air blowing through your vents. This can happen if the breaker to the outdoor unit tripped or because the emergency shutoff switch was flipped.

Simply reset the breaker or the emergency switch. If either trip again, contact a professional. The reason it’s tripping constantly is because there is most likely a serious electrical problem with the air conditioning unit.

The coils are dirty – If the air conditioner’s coils are dirty, it’s going to restrict airflow, which can result in hot air being blown through your vents.

Your coils won’t get dirt if you schedule an annual air conditioner inspection – a professional will clean the coils while performing a thorough inspection of your air conditioner.

Your air conditioner is low on refrigerant – Without the proper levels of refrigerant, your air conditioner system won’t be able to effectively remove heat from your home. Usually, if your refrigerant levels are low, then there’s a leak.

A professional HVAC technician will identify the leak, fix the leak and re-fill your unit with the proper amount of refrigerant.

Your thermostat is set wrong – Believe it or not, but if your thermostat is set improperly, then it could cause your air conditioner to blow hot air. Check your thermostat and make sure that it’s not set to “HEAT” or that the fan isn’t set to “ON.”

If the fan is set to “ON,” then your fan will be blowing air through your vents even when your air conditioner isn’t working to cool the air it’s blowing. It’s why you might be feeling warm air blowing through your vents.

Air Conditioner Repair in Philadelphia

These are some of the reasons why your air conditioner may be blowing hot air. Be sure to contact W.F. Smith to schedule an air conditioner repair today.

Dave Smith was very informative, explained 3 possible Lennox units and I chose the elite 16 seer with the 2 stage compressor and the variable speed air handler. Great people, professional installation, explained all the features and provided a hands on operation of the digital thermostat. I had 2 previous quotes and was ready to place the order but Dave came anyway, after working hours, and did all the necessary measurements and explained how important the duct system is to unit size. Needless to say I placed the order with Smith Co. They arrived on time, worked very neatly and in a professional manner, cleaned up and they were working and filled out rebate papers for me. Great experience.