Why is my AC system freezing up?

There are many reasons why your AC system freezes up.

Double-checking the air filter isn’t dusty and airflow isn’t restricted are the only work you can safely take care of without professional help. If you need to put in a new the filter, you can hasten the thawing process by switching off the system and turning on the fan. If you have a heat pump, you can turn it to heat mode until the ice has melted.

After the ice is gone, move the temp back to normal. If your system freezes a second time, contact Service Experts Heating & Air Conditioning to correct the malfunction.

Here are a few other reasons why your equipment could be freezing up.

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

What leads to a leak?

  • Weakened solder joints
  • Grating from piping vibrating against other parts
  • Broken valves
  • Unsecured fittings

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

Dirty evaporator coil—Over time, the evaporator coil gets dirty and leads to issues resembling a dusty filter. You’ll progressively receive lower airflow until your system freezes or halts cooling. You’ll need to contact Service Experts Heating & Air Conditioning to take care of the issue.

Defective blower motor or relay—A blower motor going at an inaccurate speed or not running at all can create freezing. It might also be intermittent, going at maximum speed and decelerating after it gets warm. Or a relay could cause it to run one time and not the next. In either case, you will need to contact Service Experts Heating & Air Conditioning to fix the problem.

Requesting regular AC maintenance could help you bypass this problem. Our techs will meticulously examine and clean your equipment, which often allows us to spot little troubles before they become huge issues.