Grant fault codes
From the Grant manuals on file, range by range.
Grant Aerona R290
- 1Pump over-voltage protection
- 2Pump under-voltage protection
- 3Pump over-current protection
- 4Pump light-load protection
- 5Pump phase loss protection
- 6Pump block protection
- 7Pump over-temperature protection
- E01Connection fault between wiring centre and heat pump
- E34AC input voltage is abnormal
- E35Drive EEPROM error
- E36Power off reset
- E37Reserved
Grant Aerona R32
- 740Remote controller communication error
- A0DC voltage error
- A1Discharge temperature error
- A2Protective action against excess current DC current detection
- A4Protective action against excess current AC current detection
- A5Abnormal revolution of compressor
- A6Suction temperature sensor error
- A7Auto defrost temp sensor error
- A8Discharge temp. sensor error
- C1Upper fan motor error (HPID13R32 & HPID17R32)
- C2Outdoor temp. sensor error
- C3Lower fan motor error (HPID13R32 & HPID17R32) / fan motor error (HPID6R32 & HPID10R32)