AC Condensate Overflow — Auxiliary Pan or Ceiling Leak

Primary drain fault + secondary safety pan/switch check

Check: Main drain fault (clog/slope/pump) = pan overflows. Ceiling-recessed = mandatory auxiliary pan + float switch (per KS/IMC). Float switch trip = system shut + error code. Ceiling discoloration/mold/moisture = long-running issue. Heavy water in auxiliary pan = dispatch immediately.

What to do: Empty auxiliary pan → repair main drain (clog/pump/slope). Damaged ceiling = repaint/replace (separate post-service charge). Verify aux switch (test: lift float by hand → system should stop). Test secondary system yearly.