Tools & materials
- Garden hose with a spray nozzle
- Coil cleaner (no-rinse, optional)
- Soft brush
- Fin comb
- Screwdriver
Step by step
- Step 1
Turn off the AC at the thermostat and pull the disconnect or turn off the breaker at the outdoor unit.
- Step 2
Clear leaves, weeds and debris around the unit. Keep 2 feet of clearance on all sides.
- Step 3
Gently brush loose debris off the fins. Straighten bent fins with a fin comb.
- Step 4
Spray coil cleaner if needed, then rinse the coils from inside to outside with a gentle hose stream. Never pressure-wash.
- Step 5
Let it dry, restore the power and turn the AC back on.
When to stop and call ProFix
If you see any of these, stop and call us:
- The AC runs but blows warm air
- There's ice on the lines or coils
- The unit hums but the fan doesn't spin
- You see oil stains (possible refrigerant leak)
Not in the mood to DIY? A ProFix pro can handle it for you in Chicago Metro and Dallas–Fort Worth, with a written price before work starts.
Related guides
These guides are general information for simple repairs. You're responsible for your own safety and for following local codes and your lease or HOA rules. When in doubt, stop and call a licensed professional. All DIY guides