How to Clean Your Window AC Unit

March 09, 2021

With spring upon Monmouth and Ocean counties, you may be concerned about getting your central AC system ready for warmer weather. That's smart and well worth the effort. However, if you have rooms that are cooled with a window AC unit, you should take care of those too. What follows is a guide on how to clean a window AC unit.

How to Clean a Window AC Unit: Step 1

Unplug the AC unit and remove the front panel that covers the air filter. If the filter is dirty, clean it with a soft-bristled brush and set it aside. For a deep cleaning, remove the AC unit from the wall. The AC is heavy, so make sure you have someone to help you.

How to Clean a Window AC Unit: Step 2

Remove the cabinet. Examine the AC to see if there are any bent fins. Bent fins can reduce airflow through the AC, which reduces its capacity to cool efficiently. Use a fin comb (not a butter knife) to straighten crooked fins.

How to Clean a Window AC Unit: Step 3

If you have a shop vacuum, use it to clean out thick debris inside the AC unit and from the evaporator and condenser coils.

How to Clean a Window AC Unit: Step 4

You can purchase a foaming coil cleaner at your local home store or online. Spray the coils with the foaming cleaner. Let stand according to instructions and wipe clean.

How to Clean a Window AC Unit: Step 5

Clean the panel and other parts of the window AC with a household cleaning spray, such as a window cleaner. Make sure to clean the fan blades and surfaces inside the AC.

How to Clean a Window AC Unit: Step 6

If your window AC unit has a condensate tube, pour a few cups of a 50/50 bleach and water mixture through it. For questions or to schedule HVAC service, please contact Aggressive Mechanical Contractors today. "Honesty and Integrity Since 1948" is not only our slogan, it's our promise!