Why Is My AC System Freezing Up?

As the weather continues to warm up, your AC system will undoubtedly experience an increased workload. While the glorious feeling of an air conditioned home is one of the summer’s most comforting feelings, the mishaps that can come with it are enough to offset the benefits as a whole.

Among those, the dreaded frozen AC system.

There are a variety of possibilities that can cause your AC system to freeze up. In almost all cases, it’s important that you don’t attempt to tackle these on your own, as they will require the help of an experienced professional.

Dirty Evaporator Coil

Over time, your evaporator coil will acquire a buildup of dirt and dust. You can identify this issue by checking the status of your air filter. If the filter is clean and the you’re still experiencing decreased airflow, your evaporator coil is a likely culprit.

Fortunately, evaporator coils don’t become dirty enough to make a significant difference overnight. However, it can be difficult to identify its effectiveness until it’s too late. A SMART contractor can help.

Low Refrigerant

Over time, system wear and tear can cause leaks in your refrigerant line. While a variety of causes can be attributed to a leak, it can also lead to your system freezing up. Judging on the age of the system and location of the leak, you may be able to repair it, but in some cases, you may need to buy a new system entirely.

Impaired Blower Motor or Relay

If your blower motor is not running at the correct speed, your system could freeze up. In some cases, the speed of the blower motor may vary, which can cause problems as well. A defective relay can also cause issues with both stopping and starting, but these can be difficult to diagnose. Contact us, and we’ll help get it fixed in no time.