Why Is Your Air Conditioner Not Cooling?

An air conditioner's primary purpose is to cool your space. So, if turning on your air conditioner makes no difference during summer, you need to check it. It's likely that your AC unit isn't cooling due to either of these reasons.

Clogged Air Filters

You may think your AC system has broken down if it no longer cools your space. But did you know that simple things such as dirty filters can cause problems? Well, clogged air filters will obviously restrict airflow. That's why you can't feel cool air coming from the vents. In that case, changing the air filters should solve the issue.

Frozen Evaporator Coil

The evaporator coil will freeze if your AC unit gets too cool. Unfortunately, air conditioners can't function properly with frozen evaporator coils. Remember that warm air must pass through the evaporator coils to cool. So, a frozen evaporator coil can't do its sole purpose, which is to cool the warm air. 

You'll want to hire an air conditioning repair service to investigate what's causing your evaporator coil to freeze. It might be refrigerant problems, a dirty evaporator coil, clogged air filters, or a clogged drain pipe.

Leaking Ductwork

There might be a problem with your ductwork if your air conditioner is running, but you can't feel the cool air. Assuming there is a crack or hole in the ductwork, the cool air will escape into the attic before it even reaches the room. That explains why your room remains warm even when the AC system is running as it should. 

So, if you suspect the ductwork to be the main culprit, request an inspection. The technician will check for problems and give you an estimate for replacing the damaged ducts.

Aging AC System

Your air conditioning system can't serve you forever. And once age catches up, the AC system will no longer perform optimally. That's why it won't cool your home as it once did. Sadly, no amount of air conditioning repair can solve the problem. The only solution is to get a new air conditioning unit.

Insufficient Refrigerant

Air conditioning units rely on a refrigerant known as Freon to cool warm air. Unfortunately, refrigerant can get depleted or leak, and if that happens, your air conditioner will no longer cool your space. An HVAC technician must repair the leaking lines and top up the coolant. Your air conditioner should function normally after refilling the Freon gas.

Other causes you shouldn't ignore are:

  • A faulty thermostat
  • An undersized AC
  • A faulty outdoor disconnect
  • A faulty condenser fan motor
  • A faulty compressor