FAULT DIAGNOSIS
FAULT DIAGNOSIS BY REMOTE CONTROLLER
The temperature display sections indicate corresponding codes.
1. When the ON TIMER CANCEL button or OFF TIMER CANCEL button is held down for
00 00
5 seconds, a "
ON TIMER CANCEL
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.
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
" indication flashes on the temperature display section.
SWING
TURBO
QUIET
ON
CANCEL
(For Inverter only)
FAN
MODE
SLEEP
TIMER
OFF
CLOCK
CANCEL
OFF TIMER CANCEL
MEANING
3