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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
■
Error Indicator
• The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble.
• Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table.
• If more than two troubles occur simultaneously, primarily the highest trouble fo error code is expressed.
• After error occurrence, if error is released, error LED is also released simultaneously.
• To operate again on the occurrence of error code, be sure to turn off the power and then turn on.
• Having or not of error code is different from Model.
❈
CH52 : Only A2UW146FA0(FM17AH UL0)
Troubleshooting Guide
Self-diagnosis Function
Indoor Error
00
No Error
ON
01
Indoor Room themistor error
1time
OFF
02
Indoor in-piping sensor error
2times
OFF
03
Remote controller error
3times
OFF
04
Drain Pump error
4times
OFF
05
Communcation error between in and out
5times
OFF
06
Indoor Out-Piping sensor error
6times
OFF
07
Differnt mode operation
7times
OFF
Error code
Description
INV TPS
LED 1
(Red)
LED 2
(Green)
Indoor
Status
Outdoor Error
21
DC Peak (IPM Fault)
2times
1time
OFF
22
CT 2(Max CT)
2times
2times
OFF
23
DC Link Low Volt.
2times
3times
OFF
24
L_P/Heater Sink
2times
4times
OFF
25
Low voltage / Over voltage
2times
5times
OFF
26
DC Comp Position Error
2times
6times
OFF
27
PSC Fault Error
2times
7times
OFF
28
DC Link High Volt
2times
8times
OFF
32
D-Pipe High (INV)
3times
2times
OFF
33
D-Pipe High (Normal)
3times
3times
OFF
40
CT Sensor (Open/Short)
4times
O
OFF
41
INV. D-PipeTh Error(Open/Short)
4times
1time
OFF
44
Outdoor air Th Error(Open/Short)
4times
4times
OFF
45
Cond. Pipe Th Error(Open/Short)
4times
5times
OFF
46
Suction Pipe Error(Open/Short)
4times
6times
OFF
47
Const D-pipe Th Error(Open/Short)
4times
7times
OFF
51
Capacity over
5times
1time
OFF
52
Signal error(INV Board
↔
Main Board)
5times
2times
OFF
53
Signal error (Indoor
↔
Outdoor)
5times
3times
OFF
60
EEPROM Check Sum Error
6times
O
OFF
61
Cond. Pipe High
6times
1time
OFF
62
Heatsink High
6times
2times
OFF
63
Cond. Pipe Low
6times
3times
OFF
65
Heatsoml Th error (Open/Short)
6times
5times
OFF
Error Code
Description
INV TPS
LED 1
(Red)
LED 2
(Green)
Indoor
Status
Summary of Contents for A2UW146FA0
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