Where condensation should go
Moisture removed from indoor air collects in a drain pan and flows outside through a condensate line.
The drain requires continuous slope or a properly operating pump.
Common leak causes
Algae, dust, insects, crushed tubing, poor slope, disconnected hoses, failed pumps, and overflowing pans are common causes.
A frozen coil can also release a large amount of water when it thaws.
Why it matters
Water can damage walls, floors, insulation, electronics, and finishes.
Persistent moisture can support biological growth.
Safe checks
Turn the unit off if water is reaching electrical areas. Inspect the outdoor drain outlet and look for obvious blockage.
Do not force high pressure through the drain without understanding where it will discharge.
How it is corrected
The drain, pan, pump, coil, and installation pitch are inspected and cleaned or repaired.
Airflow and refrigerant conditions are checked if icing occurred.
Frequently asked questions
Is a little dripping outside normal?
Yes, from the drain line.
Can a dirty filter cause leaking?
It can contribute to icing.
Can I use bleach?
Manufacturer guidance and material compatibility matter.
Does the head need to be level?
It must be installed according to the manufacturer's drainage requirements.
Need a real diagnosis?
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