LG MULTI V Service Manual page 125

Error No. Error Type
Compressor1 dis-
41 charge pipe tempera-
ture sensor error
n Error diagnosis and countermeasure flow chart
Sensor connection to PCB
is normal?
Yes
Is the resistance of
sensor normal?*
Yes
Is sensor resistance
value same as temperature
value of LGMV?
Yes
Replace corresponding sensor
* Error is generated if the resistance is more than 5 M(open) and less than 2 k (short)
Note: Standard values of resistance of sensors at different temperatures (5 % variation)
10 C = 362 k : 25 C= 200 k : 50 C= 82 k : 100 C= 18.5 k
Error Point
Sensor measurement
value is abnormal
(Open/Short)
No
Insert sensor connector to PCB properly
No
Replace sensor
No
Replace corresponding outdoor PCB
1. Defective connection of the compressor1 discharge
pipe temperature sensor
2. Defective discharge pipe compressor sensor of the
compressor1 (open/short)
3. Defective outdoor PCB
Check the resistance
inverter compressor
discharge temperature
sensor
- 125 -
Copyright © 2020 LG Electronics Inc.
All rights reserved. Only training and service purposes.
Self-diagnosis function
Main Reasons