For installers and professionals
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ATTENTION!Please don’t try to repair the heat pump by yourself to avoid any risk.
4. Failure code
Power supply excesses operation range
Excessive temp difference between inlet and outlet water(Insufficient water flow
protection)
Ambient temperature too high or too low protection
3 phase sequence protection (three phase only)
Water outlet temp too high or too low protection
High exhaust temp protection
Evaporator overheat protection (only at cooling mode)
Controller communication failure
Water inlet temp sensor failure
Water outlet temp sensor failure
Gas exhaust temp sensor failure
Evaporator coil pipe temp sensor failure
Gas return temp sensor failure
Cooling coil pipe temp sensor failure
Ambient temp sensor failure
Cooling plate sensor failure
Compressor drive module failure
Compressor running failure
Inverter board over current protection
Inverter board overheat protection
Cooling plate overheat protection
Power filter plate No-power protection
PFC module over current protection