LG Multi V Manual page 63

Error
Error Type
No.
03 No transmission between cabled
remote controller & indoor unit
I Error diagnosis and countermeasure flow chart
Does the error happens
again if the remote
controller is replaced?*
Yes
Does the error occurred
when the cable of remote
controller is replaced?
Yes
Replace indoor unit PCB ***
* If there is no remote controller to replace : Use another unit's remote controller doing well
** Check cable : Contact failure of connected portion or extension of cable are main cause
Check any surrounded noise ( check the distance with main power cable)
➔ make safe distance from the devices generate electromagnetic wave
*** After replacing indoor unit PCB, do Auto Addressing & input unit's address if connected to central controller.
(All the indoor units connected should be turned on before Auto Addressing
Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Error Point
The remote controller
did not receive the sig-
nal from indoor unit
during specific time
No
Replace cabled remote
controller
No
Check connection &
transmission cable **
Checking transmission cable connection status
- 63 -
Main Reasons
1. Remote controller fault
2. Indoor unit PCB fault
3. Connector fault, Wrong connection
4. transmission cable problem
CN-REMO : Remote controller connection
❇
The PCB can differ from model to model.
Check from the right source.
Troubleshooting Guide
LGE Internal Use Only