Why is my AC system freezing up?

There are a lot of reasons why your AC system freezes up.

Checking the air filter isn’t clogged and airflow isn’t lowered are the only tasks you can safely handle on your own. If you need to replace the filter, you can speed up the defrosting process by disabling the system and turning on the fan. If you have a heat pump, you can move it to heat mode until the ice has disappeared.

After the ice disappears, switch the temperature back to normal. If your unit freezes a second time, call Roy Inch & Sons Home Services by Enercare to correct the problem.

Here are several other reasons why your unit may be freezing up.

Not enough refrigerant—Freezing can be a result of a refrigerant leak.

What leads to a leak?

  • Fragile solder joints
  • Friction from piping vibrating against something
  • Cracked valves
  • Loose fittings

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

Dirty evaporator coil—Over time, the evaporator coil becomes dirty and leads to problems resembling a clogged filter. You’ll progressively get lower airflow until your equipment freezes or halts cooling. You’ll need to get in touch with Roy Inch & Sons Home Services by Enercare to fix the problem.

Malfunctioning blower motor or relay—A blower motor working at an inaccurate speed or not working at all can create freezing. It can also be irregular, starting at top speed and slowing down after it gets too hot. Or a relay could force it to run one time and not the subsequent time. In either case, you will need to get in touch with Roy Inch & Sons Home Services by Enercare to repair the trouble.

Requesting annual AC maintenance could help you skip this problem. Our pros will meticulously inspect and clean your system, which frequently allows us to spot small troubles before they become huge problems.