
Service Diagnosis
34
3.3 Error code description for Inverter
No.
ERROR CODE
ERROR DESCRIPTION
RK(X)B09/12/18/24AX
RK(X)N09/12/18/24AX
1
00
NORMAL
O
2
A1
INDOOR PCB ABNORMALITY
O
3
A5
ANTIFREEZE PROTECTION OR HIGH PRESSURE
CONTROL
O
4
A6
INDOOR FAN MOTOR ABNORMALITY
O
5
C4
INDOOR HEAT EXCHANGER THERMISTOR
ABNORMALITY
O
6
C9
INDOOR ROOM THERMISTOR ABNORMALITY
O
7
E1
OUTDOOR PCB ABNORMALITY
O
8
E5
COMPRESSOR OVERLOAD
O
9
E6
COMPRESSOR LOCK/START-UP ABNORMALITY
O
10
E7
OUTDOOR FAN MOTOR LOCK
O
11
E8
AC INPUT OVER CURRENT
O
12
EA
4 WAY VALVE ABNORMALITY
O
13
F3
DISCHARGE PIPE OVERHEAT
O
14
F6
HEAT EXCHANGER OVERHEAT
O
15
H0
COMPRESSOR SENSOR SYSTEM ABNORMAL
O
16
H6
POSITION SENSOR ABNORMAL (COMPRESSOR)
O
17
H8
AC CURRENT SENSOR ABNORMALITY
O
18
H9
OUTDOOR AIR THERMISTOR ABNORMALITY
O
19
J3
COMPRESSOR DISCHARGE PIPE THERMISTOR
ABNORMALITY
O
20
J6
OUTDOOR HEAT EXCHANGER THERMISTOR
ABNORMALITY
O
21
L3
ELECTRICAL BOX TEMPERATURE RISE
(COMPRESSOR OFF)
O
22
L4
HEAT SINK OVERHEAT (COMPRESSOR ON)
O
23
L5
IPM ABNORMALITY
O
24
P4
HEAT SINK THERMISTOR ABNORMALITY
O
25
U0
INSUFFICIENT GAS
O
26
U2
DC VOLTAGE OUT OF RANGE
O
27
U4
COMMUNICATION ABNORMALITY
O
28
UA
INSTALLATION ABNORMALITY
O
Remark: O : Function
- : Not Applicable