3.0
FAULT DIAGNOSIS (For Inverter only)
If there is any abnormal condition detected, ARCWA wired controller will blink the error code.
ERROR CODE
00
NORMAL
A1
INDOOR PCB ERROR
A3
DRAIN PUMP ABNORMAL
A5
ANTIFREEZE (COOLING)/HEAT EXCHANGER OVERHEAT (HEATING)
A6
INDOOR FAN MOTOR ABNORMAL
AH
ELECTRICAL AIR CLEANER ABNORMAL
C4
INDOOR HEAT EXCHANGER (1) THERMISTOR SHORT/OPEN
C5
INDOOR HEAT EXCHANGER (2) THERMISTOR SHORT/OPEN
C7
LOUVER LIMIT SWITCH ERROR
C9
INDOOR ROOM THERMISTOR SHORT/OPEN
E1
OUTDOOR PCB ERROR
E3
HIGH PRESSURE PROTECTION
E4
LOW PRESSURE PROTECTION
E5
COMPRESSOR MOTOR LOCK/COMPRESSOR OVERLOADED
E6
COMPRESSOR START-UP ERROR
E7
OUTDOOR DC FAN MOTOR LOCK
E8
AC INPUT OVER CURRENT
E9
EXV ERROR
EA
4 WAY VALVE ERROR
F3
DISCHARGE PIPE OVERHEAT
F6
HEAT EXCHANGER OVERHEAT
HO
COMPRESSOR SENSOR SYSTEM ERROR
H3
HIGH PRESSURE SWITCH ERROR
H6
COMPRESSOR FEEDBACK DETECTION ERROR
H7
FAN MOTOR OVERLOADED/OVERCURRENT/SENSOR ABNORMAL
H8
AC CURRENT SENSOR ERROR
H9
OUTDOOR AIR THERMISTOR SHORT/OPEN
J1
PRESSURE SENSOR ERROR
J3
COMPRESSOR DISCHARGE PIPE THERMISTOR SHORT/OPEN/MISPLACED
J5
SUCTION PIPE THERMISTOR SHORT/OPEN
J6
OUTDOOR HEAT EXCHANGER THERMISTOR SHORT/OPEN
J7
SUBCOOLING HEAT EXCHANGER THERMISTOR SHORT/OPEN
J8
LIQUID PIPE THERMISTOR SHORT/OPEN
J9
GAS PIPE THERMISTOR SHORT/OPEN
L1
INVERTER OUTDOOR PCB ERROR
L3
OUTDOOR CONTROL BOX OVERHEAT
L4
HEAT SINK OVERHEAT
L5
IPM ERROR/IGBT ERROR
L8
INVERTER COMPRESSOR OVERCURRENT
L9
COMPRESSOR OVERCURRENT PREVENTION
LC
COMMUNICATION ERROR (OUTDOOR CONTROL PCB AND INVERTER PCB)
P1
OPEN PHASE OR VOLTAGE UNBALANCE
P4
HEAT SINK THERMISTOR SHORT/OPEN
MEANING
5