Why is my AC system freezing up?

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

Making sure the air filter isn’t dirty and airflow isn’t decreased are the only work you can safely fix without professional help. If you need to install a new the filter, you can accelerate the melting process by turning off the equipment and switching on the fan. If you have a heat pump, you can turn it to heat mode until the ice has disappeared.

After the ice disappears, turn the temperature back to normal. If your system freezes repeatedly, get in touch with Matz-Rightway to fix the issue.

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

Low refrigerant—Freezing may be a result of a refrigerant leak.

What creates a leak?

  • Fragile solder joints
  • Resistance from piping vibrating against an object
  • Cracked valves
  • Unsecured fittings

How long your system has been running and the area of the leak determine whether you should repair or replace your AC system.

Filthy evaporator coil—Throughout the seasons, the evaporator coil gets dirty and creates issues similar to a dirty filter. You’ll gradually get lower airflow until your system freezes or quits cooling. You’ll need to get in touch with Matz-Rightway to take care of the malfunction.

Defective blower motor or relay—A blower motor running at an incorrect speed or not running at all can create freezing. It could also be irregular, going at maximum speed and decelerating after it heats up. Or a relay might cause it to work one time and not the next. In either situation, you will need to call Matz-Rightway to repair the issue.

Booking annual AC maintenance might help you skip this problem. Our pros will thoroughly check and clean your unit, which frequently allows us to discover little issues before they become major problems.

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