Clean AC Condenser Coils
Clean the outdoor AC condenser unit coils to maintain cooling efficiency.
DIY Cost
$0
If Ignored
$1.5k
Frequency
Once a year
Difficulty
Easy DIY
Most homeowners can handle this in under an hour with basic tools.
How to do it — step by step
Turn off power to the condenser at the disconnect box. Remove leaves and debris from around the unit. Use a garden hose to gently spray the fins from inside out (top down) to remove dirt buildup. Straighten any bent fins with a fin comb ($10). Clear 2 feet of space around the unit. Dirty coils reduce efficiency by 10–25%, increasing your electricity bill. A severely clogged unit can overheat and damage the compressor — the most expensive part at $1,200–$2,500.
Recommended tools & supplies
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