Why is my AC system freezing up?

There are many reasons why your AC system freezes up.

Checking the air filter isn’t dusty and airflow isn’t restricted are the only work you can safely take care of yourself. If you need to install a new the filter, you can hasten the melting process by switching off the unit and using the fan. If you have a heat pump, you can move it to heat mode until the ice is gone.

After the ice disappears, turn settings back to normal. If your system freezes repeatedly, get in touch with Service Experts Heating & Air Conditioning to repair the issue.

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

Insufficient refrigerant—Freezing up could be caused by a refrigerant leak.

What causes a leak?

  • Weak solder joints
  • Resistance from piping vibrating against an object
  • Broken valves
  • Slack fittings

How long your system 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 gets dirty and creates troubles much like a dirty filter. You’ll progressively get lower airflow until your equipment freezes or stops cooling. You’ll need to contact Service Experts Heating & Air Conditioning to take care of the issue.

Malfunctioning blower motor or relay—A blower motor going at the wrong speed or not turning on at all can result in freezing. It might also be irregular, running at top speed and slowing down after it heats up. 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 Service Experts Heating & Air Conditioning to correct the issue.

Requesting yearly AC maintenance can help you bypass this problem. Our pros will thoroughly check and clean your unit, which frequently allows us to find minor troubles before they turn into major issues.

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