Talking About Air Filtration Systems

Talking About Air Filtration Systems

Is Your A/C on Ice? Here's How to Thaw It Out

Tammy Terry

It's hard to believe that an air conditioner can turn into a block of ice on a sweltering summer day. However, that's exactly what happens when your unit's evaporator coil freezes over. This can happen for a wide variety of reasons, but the important thing is to thaw it out as soon as possible. The following offers a few pointers on how you can do just that.

Ways to Defrost Your A/C System

There's more than one way to warm up your frozen A/C system. Here's how you can do it safely:

  • Shut down the unit completely and wait for the coil to thaw out. Keep in mind it could take an entire day for the ice buildup to melt in this manner.
  • Turn the air conditioning off, but let the blower fan run continuously. The constant air flow will thaw the coils faster, letting you use your A/C system much sooner.
  • Use a hair dryer set on low heat to speed up the thawing process. Keep the hair dryer a few inches away from the ice buildup to promote even melting and also to avoid concentrating too much heat in one area.

One thing you don't want to do is chip away at the ice with a screwdriver, ice pick or hammer. These tools can easily damage or even destroy the delicate evaporator coil. You also shouldn't use your furnace or heat pump's heat setting to thaw the ice buildup, as it could stress the coils and other vulnerable A/C components.

How to Prevent Future Freezing

After getting rid of ice buildup the first time around, chances are you're not up for a repeat performance. To keep that from happening, here are a few preventive measures you can take:

  • Change your air filter regularly. A clogged filter can restrict airflow, setting the stage for ice buildup. Have your unit's air filter changed on a monthly basis.
  • Keep the evaporator coils clean. If necessary, gently remove dust and debris with a soft-bristled brush, mild dishwashing detergent and warm water.
  • Always check for airflow obstructions. Make sure the return air grille isn't caked with debris or blocked by furniture.
  • Have a pro check for refrigerant leaks. Low refrigerant can lead to frozen coils, so it's important to have a trained professional check your A/C unit's refrigerant levels.

With these tips, you won't have to struggle with a frozen-solid A/C unit, plus your unit will run more efficiently while saving you more money on your maintenance costs than before. 


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About Me
Talking About Air Filtration Systems

Hey everyone, I am Mort Nicholas. Since I have allergies to pollen, dust and chemicals, I must filter the air blowing through my home day and night. The air filtration systems hook straight to the furnace and air conditioner to provide my home with fresh air at all times. The filters used for these systems capture the tiniest of particles to keep them out of my airways. As a result, I often wake up feeling healthy and refreshed. I hope to share the benefits of having filtered air flowing through your home. I will discuss symptoms caused by contaminated air. In addition, I will share information about air filtration maintenance services provided by HVAC contractors.