Why is my AC system freezing up?

There are lots of reasons why your AC system freezes up in the Niagara Region. Almost all of them frequently need experienced AC repair.

Checking the air filter isn’t dusty and airflow isn’t lowered are the only tasks you can safely take care of on your own. If you need to put in a new the filter, you can accelerate the defrosting process by switching off the unit and using the fan. If you have a heat pump, you can switch it to heat mode until the ice has melted.

After the ice melts, turn the temp back to normal. If your system freezes again, contact Service Experts Heating & Air Conditioning to take care of the malfunction.

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

Insufficient refrigerant—Freezing can be a result of a refrigerant leak.

What causes a leak?

  • Fragile solder joints
  • Grating from piping vibrating against an object
  • Broken valves
  • Loose fittings

How long your unit has been running and the location of the leak determine 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 dusty filter. You’ll gradually lose airflow until your unit freezes or quits cooling. You’ll need to get in touch with Service Experts Heating & Air Conditioning to take care of the issue.

Broken blower motor or relay—A blower motor running at the wrong speed or not turning on at all can lead to freezing. It may also be irregular, going at maximum speed and slowing down after it gets warm. Or a relay might make it run one time and not the subsequent time. In either case, you will need to contact Service Experts Heating & Air Conditioning to repair the trouble.

Scheduling regular AC maintenance or heat pump maintenance can help you skip this malfunction. Our techs will comprehensively check and clean your unit, which frequently allows us to spot small issues before they cause major issues.