A well-maintained air conditioner will run more efficiently, saving you money on utility bills.
Step 4: Wash and rinse the fins. Wash the fins with a soft brush and soapy water to remove any dirt buildup between the fins. The goal is to have air pass unrestricted through the unit. Once the fins are washed, rinse them clean with a garden hose. Don’t use too much water pressure or you may damage the cooling fins.
Wash the fins with a brush and soapy water.
Make sure that electrical power is disconnected from the air conditioner unit before servicing. Window units should be unplugged; central air units should be turned off at the fuse box. For specifics about servicing your specific air conditioner, always refer to the service manual for instructions and safety warnings.