maintenance and repairs may only be carried out by an authorised contractor. The following table lists the fault codes. Ph 1800 633 920 to speak with an authorised contractor
A fault code preceded by E appears if the fault relates to the refrigerant circuit.
📞 Ph 1800 633 920
High pressure switch failure – Complete System Reset.
📞 Ph 1800 633 920
Communication failure between controller and main board – Complete System Reset.
📞 Ph 1800 633 920
Gas exhaust temperature too high – Complete System Reset.
📞 Ph 1800 633 920
Water temp sensor fault – Compressor and fan stop, E-heater starts.
📞 Ph 1800 633 920
Water tank temperature sensor failure – Complete System Reset.
📞 Ph 1800 633 920
Evaporator coil temperature sensor failure – Compressor and fan stop, E-heater starts.
📞 Ph 1800 633 920
Gas exhaust temperature sensor failure – Compressor and fan stop, E-heater starts.
📞 Ph 1800 633 920
Ambient temperature sensor failure – Compressor and fan stop, E-heater starts.
📞 Ph 1800 633 920
Gas suction temperature sensor failure – Compressor and fan stop, E-heater starts.
📞 Ph 1800 633 920
Compressor current over high protection – Complete System Reset.
📞 Ph 1800 633 920
Fan motor failure – Complete System Reset.
📞 Ph 1800 633 920
Low ambient temperature protection – Complete System Reset.
📞 Ph 1800 633 920
Wrong power supply. Contact Electrician.
📞 Ph 1800 633 920
Compressor driver board failure. See Driver Board Failure Codes.
📞 Ph 1800 633 920
IPM overcurrent/IPM module protection – Complete System Reset.
📞 Ph 1800 633 920
Compressor fails to be driven / Software control abnormal / Compressor out of step – Complete System Reset.
📞 Ph 1800 633 920
Compressor overcurrent – Complete System Reset.
📞 Ph 1800 633 920
Input power supply lack of phase (not for single phase) – Complete System Reset.
📞 Ph 1800 633 920
IPM current detection failure – Complete System Reset.
📞 Ph 1800 633 920
Power component overheat – System shutdown – Complete System Reset.
📞 Ph 1800 633 920
Pre-charge failure – Complete System Reset.
📞 Ph 1800 633 920
DC bus overvoltage – Complete System Reset.
📞 Ph 1800 633 920
DC bus undervoltage – Complete System Reset.
📞 Ph 1800 633 920
AC input undervoltage – Complete System Reset.
📞 Ph 1800 633 920
AC input overcurrent – Complete System Reset.
📞 Ph 1800 633 920
AC input detection failure – Complete System Reset.
📞 Ph 1800 633 920
Communication failure between DSP and PFC – Complete System Reset.
📞 Ph 1800 633 920
Radiator temperature sensor failure – Complete System Reset.
📞 Ph 1800 633 920
Communication failure between DSP and communication board – Complete System Reset.
📞 Ph 1800 633 920
Communication failure between main board and driver board – Complete System Reset.
📞 Ph 1800 633 920
Compressor overcurrent alarm – Complete System Reset.
📞 Ph 1800 633 920
Compressor weak magnetic alarm – Complete System Reset.
📞 Ph 1800 633 920
PIM overheat alarm – Complete System Reset.
📞 Ph 1800 633 920
PFC overheat alarm – Complete System Reset.
📞 Ph 1800 633 920
AC input overcurrent alarm – Complete System Reset.
📞 Ph 1800 633 920
EEPROM alarm – Complete System Reset.
📞 Ph 1800 633 920
EEPROM refresh complete (disappears after restart) – Complete System Reset.
📞 Ph 1800 633 920
Temperature sensor failure to lead frequency limit – Complete System Reset.
📞 Ph 1800 633 920
AC undervoltage alarm to lead frequency limit – Complete System Reset.
📞 Ph 1800 633 920
Pre-charge voltage failure – Complete System Reset.
📞 Ph 1800 633 920
EEPROM failure – Complete System Reset.
📞 Ph 1800 633 920
AC input overvoltage failure – Complete System Reset.
📞 Ph 1800 633 920
Micro electronic parts failure – Complete System Reset.
📞 Ph 1800 633 920
Compressor model code failure – Complete System Reset.
📞 Ph 1800 633 920
Overcurrent detection (hardware detection) – Complete System Reset.
📞 Ph 1800 633 920
EEPROM failure – Complete System Reset.
📞 Ph 1800 633 920
AC input overvoltage failure – Complete System Reset.
📞 Ph 1800 633 920
Micro-electronic failure – Complete System Reset.
📞 Ph 1800 633 920
Compressor type code error – Complete System Reset.
📞 Ph 1800 633 920
Detected current overhigh (hardware overcurrent) – Complete System Reset.
📞 Ph 1800 633 920
maintenance and repairs may only be carried out by an authorised contractor. The following table lists the fault codes. Ph 1800 633 920 to speak with an authorised contractor
Not enough water in tank – Ensure water supply.
📞 Ph 1800 633 920
Communication malfunction (controller ↔️ main board) – Complete System Reset.
📞 Ph 1800 633 920
Water tank temp sensor error (T5L) – Complete System Reset.
📞 Ph 1800 633 920
ODU heat exchanger temp sensor error (T3) – Complete System Reset.
📞 Ph 1800 633 920
ODU ambient temp sensor error (T4) – Complete System Reset.
📞 Ph 1800 633 920
Protection occurs 3 times continuously – Complete System Reset.
📞 Ph 1800 633 920
Suction temp sensor error (Th) – Complete System Reset.
📞 Ph 1800 633 920
Discharge temp sensor error (Tp) – Complete System Reset.
📞 Ph 1800 633 920
EEPROM chip error – Complete System Reset.
📞 Ph 1800 633 920
Clock chip error – Complete System Reset.
📞 Ph 1800 633 920
E-heater leakage error – Complete System Reset.
📞 Ph 1800 633 920
System low pressure protection – Complete System Reset.
📞 Ph 1800 633 920
System high pressure protection – Complete System Reset.
📞 Ph 1800 633 920
Inverter compressor overload – Complete System Reset.
📞 Ph 1800 633 920
High discharge temperature protection (Tp) – Complete System Reset.
📞 Ph 1800 633 920
Low water temp protection – Complete System Reset.
📞 Ph 1800 633 920
Ambient temperature exceeds declared range (⚠️ not an error).
Low heat pump capacity – Complete System Reset.
📞 Ph 1800 633 920
Inverter module high temp protection – Complete System Reset.
📞 Ph 1800 633 920
E-heater overload protection (16A) – Complete System Reset.
📞 Ph 1800 633 920
Main board ↔️ inverter board communication failure – Complete System Reset.
📞 Ph 1800 633 920
Three times L0 protection – Complete System Reset.
📞 Ph 1800 633 920
DC fan motor malfunction – Complete System Reset.
📞 Ph 1800 633 920
Voltage protection – Complete System Reset.
📞 Ph 1800 633 920
E-heater error (current < 2A during operation) – Complete System Reset.
📞 Ph 1800 633 920
Inverter module EEPROM malfunction – Complete System Reset.
📞 Ph 1800 633 920
Smart Grid signal error – Complete System Reset.
📞 Ph 1800 633 920
10x H6 errors in 2 hrs – Complete System Reset.
📞 Ph 1800 633 920
DC bus low voltage – Complete System Reset.
📞 Ph 1800 633 920
Low superheat discharge protection – Complete System Reset.
📞 Ph 1800 633 920
Electronic expansion valve joint fault – Complete System Reset.
📞 Ph 1800 633 920
Inverter overload protection – Complete System Reset.
📞 Ph 1800 633 920
Inverter high temperature protection – Complete System Reset.
📞 Ph 1800 633 920
DC bus high voltage protection – Complete System Reset.
📞 Ph 1800 633 920
Inverter module sampling abnormality – Complete System Reset.
📞 Ph 1800 633 920
Compressor speed abnormality – Complete System Reset.
📞 Ph 1800 633 920
Inverter phase loss protection – Complete System Reset.
📞 Ph 1800 633 920
Inverter program verification abnormal – Complete System Reset.
📞 Ph 1800 633 920
PFC protection – Complete System Reset.
📞 Ph 1800 633 920
Remote shutdown – (Not an Error) Complete System Reset. If fault persists
📞 Ph 1800 633 920
Anti-freezing operating (not an error) for some unit – Complete System Reset. If fault persists
📞 Ph 1800 633 920
Defrosting – Defrosting (not an error) – Complete System Reset. If fault persists
📞 Ph 1800 633 920
