Why is my AC system freezing up?

There are many reasons why your AC system freezes up.

Double-checking the air filter isn’t clogged and airflow isn’t lowered are the only work you can safely fix without professional help. If you need to replace the filter, you can hasten the melting process by disabling the system and switching on the fan. If you have a heat pump, you can switch it to heat mode until the ice is gone.

After the ice disappears, turn settings back to normal. If your unit freezes again, get in touch with Comfortech Service Experts to correct the issue.

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

Not enough refrigerant—Freezing up may be caused by a refrigerant leak.

What leads to a leak?

  • Fragile solder joints
  • Friction from piping vibrating against other components
  • Broken valves
  • Slack fittings

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

Filthy evaporator coil—As time passes, the evaporator coil gets dirty and creates issues much like a clogged filter. You’ll slowly receive lower airflow until your system freezes or halts cooling. You’ll need to call Comfortech Service Experts to take care of the problem.

Malfunctioning blower motor or relay—A blower motor running at the wrong speed or not working at all can cause freezing. It may also be sporadic, starting at top speed and decelerating after it gets warm. Or a relay may force it to run one time and not the following time. In either case, you will need to call Comfortech Service Experts to correct the problem.

Requesting regular AC maintenance can help you bypass this issue. Our technicians will fully check and clean your equipment, which frequently allows us to spot small troubles before they cause major troubles.

chat now widget box