Why is my AC system freezing up?

There are many reasons why your AC system freezes up in Charleston. Nearly all of them frequently require professional AC repair.

Checking the air filter isn’t dirty and airflow isn’t decreased are the only things you can safely handle without professional help. If you need to replace the filter, you can hasten the thawing process by switching off the system and switching on the fan. If you have a heat pump, you can turn it to heat mode until the ice is gone.

After the ice disappears, move settings back to normal. If your system freezes a second time, call Pardee Service Experts to fix the malfunction.

Here are a few other reasons why your system might be freezing up.

Low refrigerant—A frozen system can be created by a refrigerant leak.

What creates a leak?

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

How long your equipment has been working and the location of the leak determine whether you should repair or replace your AC system.

Dirty evaporator coil—As time passes, the evaporator coil gets dirty and causes troubles resembling a clogged filter. You’ll gradually get lower airflow until your unit freezes or quits cooling. You’ll need to contact Pardee Service Experts to fix the problem.

Malfunctioning blower motor or relay—A blower motor working at an incorrect speed or not working at all can cause freezing. It might also be intermittent, running at top speed and slowing down after it gets too hot. Or a relay can force it to work one time and not the following time. In either situation, you will need to get in touch with Pardee Service Experts to repair the trouble.

Requesting annual AC maintenance or heat pump maintenance may help you avoid this malfunction. Our techs will meticulously check and clean your unit, which often allows us to locate minor problems before they cause large troubles.