How to Clean an Air Conditioner

Step-by-Step Guide

1. 1

   Step 1: Replace the air filter.

   Purchase a new air conditioner filter at your local home improvement store.
   
   Consult your owner's manual for the correct size, or take your old filter to the store with you.
2. 2

   Step 2: Turn off the power to your furnace or blower.

   If you can't find the shutoff switch on the unit, then turn it off at the main panel.
   
   Replace the filter. , Vacuum up any visible dust and debris.
   
   If your motor has lubrication ports, squeeze 5 drops of oil that is specifically formulated for electric motors into the ports.
   
   Avoid penetrating or all-purpose oil (such as WD-40).
   
   If you're unsure about the lubrication ports, check your owner's manual. , Remove the plastic condensation tube and check for algae growth.
   
   If the tube is clogged, you can either replace it or pour a solution of 1 part bleach to 16 parts water into the tube through a funnel. , Use a pipe cleaner or a small bristled brush. , Hook the drain line back up and restore the power.
3. 3

   Step 3: Open the blower compartment.

4. 4

   Step 4: Check for algae.

5. 5

   Step 5: Clean the drain tube.

6. 6

   Step 6: Restart your unit.

Detailed Guide

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