Clean wall/window AC filter and coils

Short answer

Each spring, pop out the filter, wash it with soapy water, and vacuum the coils with a soft brush attachment.

Priority
Medium
Difficulty
DIY
Time
30 min
How often
Once a year
Season
Spring

Why It Matters

A dust-clogged filter and dirty coils kill cooling performance, force the unit to run longer, and raise electric bills.

Tools

  • Vacuum with soft brush attachment
  • Rag

Materials

  • Dish soap

How to Do It

  1. Remove the front panel or grille to access the filter.
  2. Pull out the filter and wash it in warm, soapy water. Let it dry completely before reinstalling.
  3. Vacuum the visible evaporator coils using a soft brush attachment, working gently to avoid bending the fins.
  4. If you remove the unit for winter storage, also wipe out the drain pan and vacuum the outdoor coil before putting the unit away.

Part Of

HVAC Window/Wall AC Unit

Last updated

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