LG LMU240HE Service Manual - Page 65

Self-diagnosis Function

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Troubleshooting Guide Self-diagnosis Function I 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. LED1 LED2 Indoor Error Error code Description MPS Variable LED1 00 No Error 01 Indoor Room Thermistor Error 02 Indoor In-Piping Error 05 Communication Error between In and Out 06 Indoor Out-Piping Error 07 Differnt mode operation 10 Indoor fan motor locked error 1 time 2 times 5 times 6 times 7 times LED2 1 times Indoor Status ON OFF OFF OFF OFF OFF OFF Outdoor Error Error code Description MPS Variable LED1(Red) LED2(Green) Indoor Status 33 D-Pipe High(Normal) 44 Outdoor Air Thermistor Error(Open/Short) 45 Cond Pipe Thermistor Error(Open/Short) 47 Const. D-Pipe Thermistor Error(Open/Short) 51 Capcity Error(High/Low) 3 times 3 times OFF 4 times 4 times OFF 4 times 5 times OFF 4 times 7 times OFF 5 times 1 times OFF Service Manual 65

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Service Manual
65
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
00
No Error
ON
01
Indoor Room Thermistor Error
1 time
OFF
02
Indoor In-Piping Error
2 times
OFF
05
Communication Error between In and Out
5 times
OFF
06
Indoor Out-Piping Error
6 times
OFF
07
Differnt mode operation
7 times
OFF
10
Indoor fan motor locked error
1 times
OFF
Error code
Description
MPS Variable
LED1
LED2
Indoor Status
33
D-Pipe High(Normal)
3 times
3 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
47
Const. D-Pipe Thermistor Error(Open/Short)
4 times
7 times
OFF
51
Capcity Error(High/Low)
5 times
1 times
OFF
Error code
Description
MPS Variable
LED1(Red)
LED2(Green)
Indoor Status
Indoor Error
Outdoor Error
LED1
LED2