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10. Supplementary information
Error Code
Symptom
4 disit code
2 disit code
5101
P1
Intake sensor error
5102
P2
Pipe (Liquid or 2-phase pipe) sensor error
5103
P9
6840,6843
E6
Indoor/outdoor unit communication error
6842
E7
5701,2503
P4
Drain sensor error
2502
P5
Drain pump error
2500
PA
Forced compressor error
4114
PB
Fan motor error
1503
P6
Freezing/Overheating safeguard operation
1504
7130
EE
Communication error between indoor and outdoor units
1110
P8
Pipe temperature error
6831
E4
Remote controller signal receiving error
6834
0404
Fb
Indoor unit control system error (memory error, etc.)
6201
E1
Remote controller control board error
6202
E2
6841
E9
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
4210
UP
Compressor overcurrent interruption
5104,5132
U3
Open/short of outdoor unit temperature sensors
5105,5106,5107,5110,5
130,5131,5133,5134
U4
4100,4217,4218
UF
Compressor overcurrent interruption (When compressor locked)
1501,1102,1132
U2
Abnormal high discharging temperature/49C worked/insufficient refrigerant
1302
U1
Abnormal high pressure (63H worked)/Overheating safeguard operation
1504
Ud
4230
U5
Abnormal temperature of heat sink
4400
U8
Outdoor unit fan safeguard stop
4250
U6
Compressor overcurrent interruption/Abnormal of power module
1502
U7
Abnormality of super heat due to low discharge temperature
4220
U9
Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/Current
sensor error
5300
UH
6600
A0
Address overlap (Remote controller)
6602
A2
Transmission processor hardware error
6603
A3
Transmission line bus busy error
6606
A6
Communication error between device and transmission processors
6607
A7,EF
No ACK error
6608
A8,EF
No response error
5191
EF
Open/short of optional temperature sensor 1
5192
EF
Open/short of optional temperature sensor 2
0403
EF
Communication error between indoor unit and zone control interface
Others
Other errors (Refer to the technical manual for the outdoor unit.)