Fault protection display as follows:


Digital display of the indoor malfunction

Fault code Name of the troubleshooting

E1 fault of indoor environment temperature sensor

E2 fault of 100Hz zero detection

E3 fault of indoor evaporator temperature sensor E4

fault of the indoor fan

E5 fault of the indoor EEPROM

E6, communication failures of the indoor and outdoor unit

E7 system failures (including cooling and heating)


Digital display of the outdoor malfunction

Fault code Name of the troubleshooting

F1 fault of the outdoor temperature sensor

F2 fault of the outdoor condenser temperature sensor

F3 fault of the compressor discharge temperature sensor F4

protection from excessive exhaust temperature

F5 fault of the outdoor EEPROM

F6 fault of IPDU Module



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