How to Clean the Evaporater Coil on Central A/C

A clogged evaporator coil can cause unnecessary wear to your unit.
A clogged evaporator coil can cause unnecessary wear to your unit. (Image: Zedcor Wholly Owned/ Images)

Central air conditioners have an evaporator coil located on top of the main cooling department on the inside of the home. The evaporator coils are responsible for drawing heat out of the warm air in the home before the cold air created is blown through the home. Over the year, the evaporator coils collect dirt, which prevents the coils from working as efficiently as possible. Cleaning the evaporator coils will prevent unnecessary stress on your cooling system.

Things You'll Need

  • Screwdriver
  • Vacuum cleaner
  • Soft brush attachment
  • Bleach
  • Funnel
  • Filters

Video of the Day

Shut off the power supply to the air conditioner.

Remove the screws from the access panel for the evaporator coils with a screwdriver.

Attach a soft brush attachment to your vacuum hose.

Vacuum the coils of evaporator to remove any dust and debris.

Pour one part bleach diluted with 16 parts water down the vent tee connected to the evaporator unit, using a funnel. This removes any clogs.

Remove the cover from the main housing of the air conditioner, using a screwdriver.

Pull out the air filters. Replace them with the same filter type if they are dirty. This prevents dirt from collecting on the evaporator coils.


Promoted By Zergnet
Is DIY in your DNA? Become part of our maker community.