How To Clean Outside AC Unit

Ensuring your outside AC unit is free of dirt, dust and debris will keep it from failing during the extreme Arizona summers. Follow this simple step-by-step guide to clean the unit properly.

Necessary Tools

You will need the following tools for this task:

• Hose and spray nozzle.
• Cordless drill.
• Soft-bristle brush.
• Screwdriver with socket.

Step 1. Cut The Power

• Begin by disconnecting the service at the air conditioner condenser.
• Do this by pulling the plug connector in the power box.
• You can also flip the AC breaker switch off in the main breaker panel.

Step 2. Remove Screws

• Use your cordless drill or screwdriver with a socket to remove the screws.
• Have a container nearby to place the screws in.

Step 3. Remove Panels

• Start at the back side of your AC unit.
• Remove these panels one by one.
• Be careful as you do not want to damage the condenser fins.
• Keep the panels in order as you remove them to avoid confusion when putting them back.

Step 4. Clean The Fins

• Clean the fins using either a hose with spray nozzle or a soft-bristle brush.
• Brush up and down, never side to side.
• Spray water from the top, not straight on the fins.

Step 5. Re-Install Panels

• Re-install these panels in the reverse order that you removed them.
• Use a screwdriver to leave the screws loose until all panels are back in place.
• Tighten the screws next.
• It can be helpful to install the corner panels before flat panels, depending on the unit.