Why is my AC system freezing up?

There are lots of reasons why your AC system freezes up in Rochester. Most all of them usually call for professional AC repair.

Making sure the air filter isn’t dirty and airflow isn’t restricted are the only things you can safely take care of alone. If you need to install a new the filter, you can speed up the defrosting process by turning off the system and using the fan. If you have a heat pump, you can turn it to heat mode until the ice has melted.

After the ice disappears, move the temperature back to normal. If your equipment freezes repeatedly, call Strogen's Service Experts to correct the problem.

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

Insufficient refrigerant—Freezing may be caused by a refrigerant leak.

What causes a leak?

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

How long your equipment has been installed and the location 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 becomes dirty and creates troubles resembling a dusty filter. You’ll gradually get lower airflow until your unit freezes or stops cooling. You’ll need to contact Strogen's Service Experts to take care of the issue.

Defective blower motor or relay—A blower motor working at the wrong speed or not working at all can cause freezing. It might also be irregular, going at maximum speed and slowing down after it gets too hot. Or a relay might cause it to run one time and not the next. In either case, you will need to contact Strogen's Service Experts to repair the issue.

Scheduling yearly AC maintenance or heat pump maintenance may help you skip this malfunction. Our pros will fully inspect and clean your unit, which frequently allows us to find little problems before they become huge troubles.