Priority Error number Explanation
30 E500 IPM over heat error on inverter 1
31 E484 PFC Overload (Over current) Error
32 E466 DC-Link voltage under/over error
33 E403 Compressor down due to freeze protection control
34 E440 Heating operation restricted at outdoor temperature over Theat_high value (default: 30 °C)
35 E441 Cooling operation restricted at outdoor temperature below Tcool_low value (default: 0 °C)
36 E556 Error due to mismatching capacity of indoor and outdoor unit
37 E557 DPM remote controller option error
38 E198 Error on thermal fuse of indoor unit (Open)
39 E121 Error on room temperature sensor of indoor unit (Short or Open)
40 E122 Error on EVA IN sensor of indoor unit (Short or Open)
41 E123 Error on EVA OUT sensor of indoor unit (Short or Open)
42 E154 Indoor fan error
43 E153 Error on oat switch (2nd detection)
44 E508 Smart install is not installed
Troubleshooting
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