What to Do About a Frozen Evaporator Coil

The evaporator coil is a very important air conditioner component. It’s what turns refrigerant into a gas-like state so it can be distributed throughout your home via vents and ductwork. If an AC frozen evaporator coil is why you’re here, read on to learn more about what can be done to address this particular problem.

icicles - frozen evaporator coil

Why Does an Evaporator Coil Freeze?

A clogged or dirty condensate line is one of the common reasons for a frozen coil. Other possible AC frozen evaporator coil culprits include:

  • Blocked air ducts
  • Blocked or dirty return vents
  • Other parts of you cooling system that may not be efficiently working

A frozen evaporator coil is also sometimes caused by an air conditioning system that’s incorrectly sized for your home. A system that has more cooling capacity that what’s required for your home could leave you with you with frozen evaporator coils.

Signs You Likely Have an Air Conditioner Frozen Evaporator Coil

Since your AC’s coils on the inside are hidden by a cover, it’s not always easy to tell if the coils are frozen until you start to notice some signs suggesting this may be the case. Common signs to look for include:

  • A condensate drain pan that’s overflowing
  • Lack of sufficient cool air in your home
  • Visible ice on the refrigerant line that’s outside of your home
  • Your AC has to be set higher to achieve the desired level cooling

Caring for Your Evaporator Coil Between Service Calls

In order to keep your air conditioning unit running optimally, we recommend regularly changing the filter to prevent frozen coils from becoming an issue. It is also recommended that you request regular air conditioning maintenance. This can help prevent a/c repairs and will keep your air conditioner running at its best.

Stay Safe and Cool and Let AC Pros Do the Work

The best answer to “how to fix a frozen evaporator coil” is to have an air conditioner professional do the work. Otherwise, you could potentially invalidate any existing warranties – or possibly damage your home’s cooling system. Having an air conditioner frozen evaporator coil taken care of by a local AC expert also allows any other potential issues to be corrected during the same service call.