Water leaking from air handler / ceiling stain

Condensate / drainage

AirCompDX - Field Reference for Air Compressor Techs
All HVAC symptoms
1

Plugged condensate drain

high
CheckStanding water in secondary pan or float switch tripped.
FixVacuum from outside termination; flush with warm water and vinegar (not bleach on metal pans).
ToolsWet/dry vac · Vinegar
2

Missing / dry trap

med
CheckTrap on draw-through unit missing or dry — air breaks the seal.
FixInstall P-trap sized per manufacturer; prime with water.
3

Frozen coil dumping on thaw

med
CheckSee ac-freezing-up.
FixAddress underlying freeze cause.
Safety

Pull the disconnect and lock out before opening HVAC equipment. Discharge dual-run capacitors before handling. Refrigerant recovery and brazing require EPA 608 certification and proper PPE.