Why is my AC system freezing up?

There are many reasons why your AC system freezes up.

Making sure the air filter isn’t clogged and airflow isn’t lowered are the only work you can safely handle alone. If you need to put in a new the filter, you can speed up the melting process by switching off the system and using the fan. If you have a heat pump, you can move it to heat mode until the ice is gone.

After the ice melts, move the temp back to normal. If your unit freezes repeatedly, call Barlow Service Experts to correct the problem.

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

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

What leads to a leak?

  • Weakened solder joints
  • Friction from piping vibrating against something
  • Cracked valves
  • Unsecured fittings

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

Dirty evaporator coil—As time passes, the evaporator coil attracts dirt and leads to problems resembling a clogged filter. You’ll gradually get lower airflow until your system freezes or halts cooling. You’ll need to get in touch with Barlow Service Experts to take care of the malfunction.

Defective blower motor or relay—A blower motor running at the wrong speed or not turning on at all can lead to freezing. It can also be sporadic, running at maximum speed and slowing down after it gets too hot. Or a relay may force it to start one time and not the subsequent time. In either situation, you will need to contact Barlow Service Experts to repair the problem.

Requesting regular AC maintenance may help you avoid this problem. Our techs will comprehensively examine and clean your equipment, which usually allows us to spot small problems before they cause large troubles.

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