Mitsubishi ML-PM12C-OWBH Portable Ac Error Codes
ML-PM12C-OWBH Error Code Reference
Section titled “ML-PM12C-OWBH Error Code Reference”Mitsubishi ML-PM series 12000 BTU portable air conditioner with single or dual hose configuration.
| Error Code | Fault Description |
|---|---|
| E1 | Room temperature sensor fault |
| E2 | Indoor coil (evaporator) temperature sensor fault |
| E3 | Outdoor (condenser) temperature sensor fault |
| P1 | Condensate water level high (drain required) |
| P2 | Overheat protection — high return air temperature |