Why is my AC system freezing up?

There are many reasons why your AC system freezes up.

Making sure the air filter isn’t dusty and airflow isn’t lowered are the only tasks you can safely take care of without professional help. If you need to install a new the filter, you can hasten the defrosting process by switching off the system and switching on the fan. If you have a heat pump, you can move it to heat mode until the ice is gone.

After the ice melts, turn settings back to normal. If your unit freezes again, call Service Experts Heating & Air Conditioning to fix the problem.

Here are a couple other other reasons why your system could be freezing up.

Not enough refrigerant—Freezing up may be created by a refrigerant leak.

What causes a leak?

  • Fragile solder joints
  • Friction from piping jarring against something
  • Ruptured valves
  • Loose fittings

How long your unit has been installed and the spot of the leak play a part in whether you should repair or replace your AC system.

Filthy evaporator coil—As time passes, the evaporator coil attracts dirt and causes problems resembling a dirty filter. You’ll slowly get lower airflow until your equipment freezes or halts cooling. You’ll need to call Service Experts Heating & Air Conditioning to take care of the malfunction.

Broken blower motor or relay—A blower motor working at an incorrect speed or not working at all can result in freezing. It could also be intermittent, going at top speed and decelerating after it gets warm. Or a relay could force it to start one time and not the next. In either state, you will need to get in touch with Service Experts Heating & Air Conditioning to correct the trouble.

Booking regular AC maintenance may help you bypass this problem. Our technicians will thoroughly check and clean your equipment, which typically allows us to notice little issues before they cause huge troubles.