Why is my AC system freezing up?

There are many reasons why your AC system freezes up in Miami. Nearly all of them usually need skilled AC repair.

Double-checking the air filter isn’t dirty and airflow isn’t restricted are the only things you can safely fix yourself. If you need to install a new the filter, you can accelerate the melting process by switching off the equipment and turning on the fan. If you have a heat pump, you can turn it to heat mode until the ice has disappeared.

After the ice melts, move the temperature back to normal. If your unit freezes a second time, contact Service Experts Heating & Air Conditioning to fix the issue.

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

Low refrigerant—Freezing up can be created by a refrigerant leak.

What causes a leak?

  • Fragile solder joints
  • Grating from piping rubbing against something
  • Broken valves
  • Unsecured 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—Over time, the evaporator coil becomes dirty and leads to issues resembling a clogged filter. You’ll progressively get lower airflow until your unit freezes or halts cooling. You’ll need to contact Service Experts Heating & Air Conditioning to repair the issue.

Defective blower motor or relay—A blower motor running at the wrong speed or not running at all can lead to freezing. It can also be intermittent, going at maximum speed and decelerating after it gets too hot. Or a relay can make it work one time and not the next. In either case, you will need to call Service Experts Heating & Air Conditioning to correct the problem.

Booking yearly AC maintenance or heat pump maintenance might help you avoid this problem. Our professionals will meticulously check and clean your equipment, which typically allows us to find little issues before they turn into major problems.