” indication flashes on the temperature display section.
2. Press the ON TIMER CANCEL button or OFF TIMER CANCEL button repeatedly until a
continuous beep is produced.
• The code indication changes as shown below, and notifies with a long beep.
FAULT DIAGNOSIS (For Inverter only)
SWING
TURBO
QUIET
SLEEP
ON
CANCEL
CANCEL
OFF
TIMER
CLOCK
MODE
FAN
ON TIMER CANCEL
OFF TIMER CANCEL
ERROR
MEANING
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
OM-GS02-1009(0)-Acson 1/4/10, 5:16 PM3
