Why is my AC system freezing up?

There are lots of reasons why your AC system freezes up.

Double-checking the air filter is clean and airflow isn’t decreased are the only work you can safely fix alone. If you need to put in a new the filter, you can accelerate the defrosting process by switching off the unit and turning on the fan. If you have a heat pump, you can switch it to heat mode until the ice has melted.

After the ice melts, turn the temp back to normal. If your system freezes again, contact Neal Harris Service Experts to take care of the problem.

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

Low refrigerant—A frozen system could be a result of a refrigerant leak.

What creates a leak?

  • Weak solder joints
  • Grating from piping vibrating against something
  • Broken valves
  • Slack fittings

How long your system has been installed and the area of the leak determine whether you should repair or replace your AC system.

Dusty evaporator coil—Over time, the evaporator coil gets dirty and causes troubles much like a clogged filter. You’ll progressively receive lower airflow until your equipment freezes or quits cooling. You’ll need to call Neal Harris Service Experts to repair the issue.

Malfunctioning blower motor or relay—A blower motor working at the wrong speed or not running at all can create freezing. It may also be irregular, going at maximum speed and slowing down after it heats up. Or a relay could cause it to run one time and not the subsequent time. In either situation, you will need to call Neal Harris Service Experts to fix the issue.

Requesting regular AC maintenance can help you bypass this problem. Our technicians will meticulously check and clean your system, which often allows us to discover little troubles before they turn into major troubles.

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