Why is my AC system freezing up?

There are many reasons why your AC system freezes up in Raleigh. Almost all of them frequently need pro AC repair.

Double-checking the air filter isn’t clogged and airflow isn’t lowered are the only things you can safely fix without professional help. If you need to replace the filter, you can accelerate the defrosting process by disabling the unit and using the fan. If you have a heat pump, you can switch it to heat mode until the ice has melted.

After the ice disappears, switch settings back to normal. If your unit freezes again, call Service Experts Heating & Air Conditioning to fix the issue.

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

Not enough refrigerant—A frozen system could be created by a refrigerant leak.

What leads to a leak?

  • Fragile solder joints
  • Grating from piping vibrating against other components
  • Broken valves
  • Slack fittings

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

Filthy evaporator coil—Over time, the evaporator coil gets dirty and causes issues similar to a dusty filter. You’ll gradually get lower airflow until your unit freezes or stops cooling. You’ll need to get in touch with Service Experts Heating & Air Conditioning to take care of the malfunction.

Defective blower motor or relay—A blower motor running at an incorrect speed or not turning on at all can result in freezing. It could also be intermittent, running at maximum speed and decelerating after it heats up. Or a relay may cause it to start one time and not the next. In either situation, you will need to get in touch with Service Experts Heating & Air Conditioning to repair the problem.

Requesting regular AC maintenance or heat pump maintenance might help you avoid this problem. Our technicians will thoroughly inspect and clean your equipment, which often allows us to spot little problems before they cause huge problems.