The last thing you want in the middle of a hot summer’s day is an air conditioning unit that is not cooling down your home. You can hear the condenser unit outside working and maybe even feel air coming from your vents, but the house doesn’t seem to be cooling down. There can be multiple causes behind your cooling problem, some of which you can resolve yourself and others that may require professional air conditioner repair.

Why Is My AC Running But Not Cooling?

A dirty or clogged air filter is a common culprit as this causes the airflow into your air conditioner to be significantly reduced. Your AC unit in this scenario is fighting to circulate cool air into your home and is never quite able to get to the desired temperature. If there is a thick layer of dust and debris on your filter when you inspect it, either clean or replace your air filter and you should begin to notice cooler air coming from your vents and your home’s temperature lowering.

If the air filter is not the issue, take a look outside your house. The condenser or the outside unit of your air conditioning system dissipates heat which was removed from the air cooling down the air as it enters back into your home. If this unit is full of debris or extremely dirty condenser losses its efficiency which forces it to work harder to cool your home. Clear the area around your condenser unit, remove any weeds and relocate any objects such as chairs or kids toys that may be blocking the air from flowing freely to the condenser. If there is dirt build-up, spray down the unit with your garden hose, be sure to use light pressure to ensure you do not damage the unit.

Take a minute to check on your thermostat to make sure it is on the correct setting and that it is functioning properly. Your thermostat may be set to on, which keeps the fan running but not necessarily pushing out cool air if this is the case switch your thermostat to auto. This will ensure the fan only goes on when the unit is pumping cool air. If you cannot see anything on your thermostat screen check the battery or the connection.

If the above doesn’t resolve the issue you may need to call in a professional to look at your air conditioning unit. A few of the problems a professional HVAC specialist will look for includes; if there is insufficient refrigerant or a refrigerant leak, a broken fan motor, or a defective compressor. The refrigerant is what absorbs the heat from the air and cools the air flowing over it, when the refrigerant is low the AC fails to cool. The fan is what helps dissipate heat if the motor is not working properly your AC unit will not be able to cool your home. The compressor is what circulates the refrigerant through your system, if it is not working properly then the air cannot be cooled.

If your air conditioning until still isn’t cooling down your home, contact DeMarco Mechanical Services, your #1 HVAC Company in The GTA and we will be sure to have your AC back up and cooling your home.