Samsung AC***MXSCCC Installation Manual page 33

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