How do I fix a frozen air conditioner?

Sometimes fixing your frozen air conditioner is as easy as turning up the temperature on your thermostat, but other times, the answer to “how do I fix a frozen air conditioner?” can be more complicated than it seems. The first thing you should do when your AC is frozen is shut it down. Turn the whole system off, lay down some towels, and wait for everything to defrost—only then can you start diagnosing and fixing the problem.

There are three main reasons why your AC could be frozen:

  1. Limited airflow
  2. Low refrigerant charge
  3. Low thermostat temperature

There’s an easy way to rule out one of these reasons: turn up the temperature on the thermostat. All you have to do is increase the temperature and wait a few hours; if your air conditioner doesn’t develop ice on it, then you’re all set.

However, if your air conditioner freezes over again, shut down the system and defrost it again. Your next step should be to check the air filter. Your air filters need to be changed every 1 – 3 months, depending on usage, so if it’s been longer than that or your filters look dirty, they could be contributing to limited airflow. Swap out the dirty filters for fresh clean ones and try again.

Unfortunately, if that doesn’t fix your problem, it’s time to call a professional for air conditioner repair in Philadelphia. At Dowd’s Heating & Air Conditioning, we know all there is to know about your AC, and we can help you get it up and running like new. Call today at 215-752-3638 or contact us online!