Self-diagnosis function, Indoor error, Outdoor error – LG LCN240CP User Manual
Page 38
38 Ceiling Cassette Air Conditioner
Troubleshooting Guide
■ 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.
Self-diagnosis Function
Indoor Error
Error code
Description
MPS
Variable
MPS
Inverter
LED 1
(Red)
LED 2
(Green)
Indoor
Status
00
No Error
ON
01
Indoor Room Thermistor Error
1 time
OFF
02
Indoor In-Piping Error
2 times
OFF
03
Remote controller Error
3 times
OFF
04
Drain Pump Error
4 times
OFF
05
Communication Error between In and Out
5 times
OFF
06
Indoor Out-Piping Error
6 times
OFF
Outdoor Error
Error Code
Description
MPS
Variable
MPS
Inverter
LED 1
(Red)
LED 2
(Green)
Indoor
Status
21
DC Peak(IPM Fault)
2 times
1 time
ON
22
CT2(Max CT)
2 times
2 times
OFF
23
DC Link Low Volt
2 times
3 times
OFF
24
High/Low Pressure/Heatsink Switch
2 times
4 times
OFF
25
Low Voltage / Over Voltage
2 times
5 times
OFF
26
DC COMP Position Error
2 times
6 times
OFF
27
PSC Fault Error
2 times
7 times
OFF
28
DC Link High Volt
2 times
8 times
OFF
32
D-Pipe High(INV)
3 times
2 times
OFF
33
D-Pipe High(Normal)
3 times
3 times
OFF
40
CT Sensor(open/short)
4 times
OFF
41
INV. D-Pipe Thermistor Error(Open/Short)
4 times
1 times
OFF
44
Outdoor Air Thermistor Error(Open/Short)
4 times
4 times
OFF
45
Cond Pipe Thermistor Error(Open/Short)
4 times
5 times
OFF
46
Suction Pipe Thermistor Error(Open/Short)
4 times
6 times
OFF
47
Const. D-Pipe Thermistor Error(Open/Short)
4 times
7 times
OFF
51
Capcity Error(High/Low)
5 times
1 times
OFF
53
Signal Error(Indoor_Outdoor)
5 times
3 times
OFF
54
Phase Error
5 times
4 times
OFF
60
EEPROM Check Sum Error
6 times
OFF
61
Cond Pipe High
6 times
1 times
OFF
62
Heatsink High
6 times
2 times
OFF
63
Cond Pipe Low
6 times
3 times
OFF
65
Heatsink Thermistor Error(Open/Short)
6 times
5 times
OFF