Test Operation & Troubleshooting & Maintenance
Discharge temperature sensor error
Suction temperature sensor error
Compressor internal overload protection
High discharge protection
Refrigerant loss protection
Heat pump-water pump protection
Solar kit-water pump protection
Incorrect capacity DIP switch setting
Communication error between indoor and outdoor unit
Drive communication error
High pressure sensor error
Enthalpy-enhancing sensor error
Low pressure sensor error
Heat exchanger-leaving water temperature sensor error
Auxiliary heater-leaving water temperature sensor error
Heat exchanger-entering water temperature sensor error
Water tank water temperature sensor 1 error
Water tank water temperature sensor 2 error
Solar kit-entering water temp sensor
Solar kit-leaving water temp sensor
Heat pump-water flow switch
Solar kit-water flow switch
Welding protection of the auxiliary heater 1
Welding protection of the auxiliary heater 2
Welding protection of the water tank heater
Under-voltage DC bus or voltage drop error
AC current protection (input side)