Why is my AC system freezing up?

There are a lot of reasons why your AC system freezes up in Hillsborough. Almost all of them typically require pro AC repair.

Making sure the air filter isn’t dusty and airflow isn’t lowered are the only things you can safely take care of without professional help. If you need to install a new the filter, you can accelerate the melting process by switching off the system and using the fan. If you have a heat pump, you can turn it to heat mode until the ice is gone.

After the ice is gone, move the temperature back to normal. If your equipment freezes again, get in touch with Fras-Air/General Service Experts to repair the issue.

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

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

What causes a leak?

  • Fragile solder joints
  • Grating from piping rubbing against something
  • Cracked valves
  • Slack fittings

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

Dusty evaporator coil—As time passes, the evaporator coil attracts dirt and creates problems much like a clogged filter. You’ll slowly receive lower airflow until your equipment freezes or quits cooling. You’ll need to contact Fras-Air/General Service Experts to repair the problem.

Defective blower motor or relay—A blower motor working at an inaccurate speed or not working at all can lead to freezing. It could also be intermittent, going at top speed and decelerating after it gets too hot. Or a relay may cause it to work one time and not the following time. In either case, you will need to get in touch with Fras-Air/General Service Experts to fix the issue.

Requesting regular AC maintenance or heat pump maintenance may help you bypass this problem. Our pros will comprehensively check and clean your unit, which usually allows us to discover small issues before they turn into large problems.