5E / SE
Defrost sensor error
22E
Fan motor error (freezer)
41E
Communication error (main PCB)
PC ER
Communication failure between boards
21E
Freezer fan motor error
25E
Defrost sensor failure
84C
Compressor locked / overload
88 88
Display boot failure (reset required)
CO
Communication error between modules
84E
Compressor start failure
85E
Power supply abnormality
88C
Main PCB checksum error
83E
Inverter board failure
85C1
Voltage fluctuation detected
4E / 4C
Water supply problem
LE / LC
Water leak detected
tE
Temperature sensor failure
1E
Water level sensor error
6E
Water heater relay fault
AC / AE
Communication error
3C
Motor overload detected
3E2
Motor hall sensor failure
4E2
Water inlet valve error
5E2
Drain motor abnormality
6E
Water heater relay stuck
8C
Vibration sensor abnormal signal
AC6
Inverter communication error
CE2
Motor overcurrent detected
E1
Indoor/outdoor communication error
E237
Outdoor communication issue
C101
Temperature sensor error
E201
Indoor fan motor error
E202
Outdoor fan motor error
E320
Refrigerant leak detected
E128
Indoor temperature sensor failure
E202
Outdoor fan motor abnormality
E251
Compressor overheating
E237-1
Outdoor PCB communication failure
E441
High pressure protection triggered
E422
Low refrigerant detected
C105
Indoor coil sensor abnormality
C417
Outdoor temperature sensor error
201
Firmware update failure
6000
Panel control failure
107-1
WiFi authentication failed
116-3
App server connection timeout
202
Firmware rollback failure
301
Smart Hub initialization error
404-1
Streaming service unavailable
6001
Display driver failure
701
HDMI CEC communication error
ERR 01
System startup failure
PROTECT
Safety protection active
ERR 02
Memory corruption detected
ERR 03
Boot configuration failure
PROTECT 1
Overcurrent protection active
PROTECT 2
Thermal shutdown triggered
RESET LOOP
System stuck in reboot cycle