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I Have a Frozen Air Conditioner — What’s Wrong?

Your air conditioner is responsible for cooling things down, but it’s possible to get too much of a good thing. Low refrigerant levels and poor airflow can bring an early winter to your system. A frozen air conditioner may look like an easy fix, but simply scraping off the ice forming on your unit can damage your system and won't fix the larger issue at hand. Fortunately, all’s not lost: The first step is turning off your air conditioner to allow it to defrost.

Why You Have a Frozen Air Conditioner

Check the condition of your air filter first and replace it if needed. From there, your technician can help you investigate the slippery problem leading to your frozen air conditioner.

Potential Issues

  • ice is forming on the outdoor heat pump unit
  • not reaching temperature set on thermostat

A heat pump works year round to keep a steady temperature in your home. Sometimes they fail due to faulty controls, poor communication between the control board and the system, or an issue with wiring. Like any other part of your system, it can also wear with age. If your heat pump isn’t working properly during the wintertime, especially if it’s not defrosting, this is likely due to a worn, damaged, failed defrost termination switch or defrost control board. It’s time for a replacement.

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