Whirlpool Inverter AC error codes
Chandan Kumar •
| Error Code | Meaning / Issue | Common Cause |
|---|---|---|
| E1 | Communication error between indoor & outdoor unit | Signal/communication cable issue (brighthomeservices.in) |
| E2 | Indoor temperature sensor fault | Sensor open/short or wiring problem (goservicehome.in) |
| E3 | Evaporator (indoor coil) sensor error | Sensor fault/connection issue (brighthomeservices.in) |
| E4 | Condenser (outdoor) sensor error | Sensor fault/connection issue (brighthomeservices.in) |
| E5 | Compressor overload / overcurrent | Blocked airflow or high current draw (brighthomeservices.in) |
| E6 | Outdoor fan error | Fan motor not spinning correctly (brighthomeservices.in) |
| P1 | High/Low voltage protection | Voltage fluctuations (too high/low) (brighthomeservices.in) |
| P4 | Inverter PCB protection (IPM) | Inverter module fault or high temperature (brighthomeservices.in) |
| F1 | Indoor PCB / controller error | Control board or communication failure (brighthomeservices.in) |
| F3 | Outdoor PCB error | Outdoor control board fault (brighthomeservices.in) |
| HC / H3 | Compressor overheat protection | Compressor gets too hot, shuts down (brighthomeservices.in) |
| HC (alternate source) | System “UA” or setting error | Indoor/outdoor mismatch or config issue (eciftci.com.tr) |
| PL / PH | DC input voltage too low / high | Power supply voltage problem (eciftci.com.tr) |
| UU / U5 | DC overcurrent / unit current fault | Electrical protection trigger (eciftci.com.tr) |
| F4 / F5 | Outdoor temperature sensor shorts/open | Outdoor sensor electrical issues (eciftci.com.tr) |
