HH Homeowner's Handbook
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TASK NO. 008 Preventive

Clear AC condensate drain line

HVAC & Air Quality
Trigger
Start of cooling season / if unit leaks
Who does it
DIY
Est. time
20-30 min
Est. cost
$5-15
Difficulty
●●○○○
Step by step

  1. Locate the PVC condensate drain line near the indoor air handler.

  2. Turn off the AC system.

  3. Attach a wet/dry vacuum to the outdoor end of the drain line and run it for 1-2 minutes.

  4. Alternatively, pour a cup of distilled vinegar into the drain access point every few months.

  5. Confirm water drips from the outdoor line end and check for the pan overflow switch.

Video guide
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