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Why Do Air Conditioners Freeze? What to Do if Your AC Freezes Up

Posted on March 31, 2015
by Appleby Systems

Why do air conditioners freeze?If it’s the middle of summer and you notice your air conditioner looks like it’s sitting in the middle of an ice storm, turn it off right away! The next step is to call Appleby Systems and book an in-home visit so we can diagnose the problem before it gets worse. It might be an easy fix, but if you leave it to sort itself out, a more serious problem could take over. Air conditioner freeze can happen due to:

  • Insufficient airflow – anything that restricts airflow will cause the temperature of your evaporator coil to drop below freezing. Humidity in the outside air collects on the coil, causing ice to build up and sap the system’s cooling ability. Air flow can be interrupted by dirty air filters, a handful of duct problems, damaged blower motors and more.
  • Low refrigerant levels or refrigerant leak – refrigerant issues can cause pressure to drop in the evaporator coil, allowing moisture in the air to freeze and accumulate just like insufficient airflow.
  • Outdoor temperature – most outdoor ac units don’t function effectively in temperatures below 15 degrees Celsius. A chilly summer night could cause the unit to freeze up quickly.

why do air conditioners freeze

These problems require a qualified technician to diagnose and repair them. Without a quick repair, you may be stuck deciding between a very hot summer or a new air conditioner. Before that happens, contact Appleby Systems for expert local service. We can evaluate and diagnose problems with any make and model of air conditioner.

Air Filter Replacement and Air Conditioner Maintenance

Air conditioners need proper airflow to run smoothly. Dirty air filters and closed registers mean they have to work harder. Filter replacement and other regular maintenance tasks can literally add years of life to your air conditioner. During a scheduled maintenance visit, our technicians check refrigerant levels, clean and lubricate mechanical parts and inspect the entire system

Why do air conditioners freeze?

If Your AC is Driving You Crazy, Replace It Today!

We are now the official supplier of Carrier air conditioning units. Carrier is the leading name in home heating and cooling. It designs and manufactures some of the most complete, energy efficient, silent and innovative systems on the planet. Carrier systems are trusted by the Sistine Chapel, the International Olympic Committee and many more. If your home is truly your sanctuary, this is the best product to keep you comfortable at the end of the day.

You can learn more about Carrier air conditioners here, or pick up the phone to talk to one of our expert technicians about the best way to deal with your frozen or aging air conditioner. Whatever you choose, we’re ready to help!

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