LG Multi V Water IV ARNU07GTU 2 Series Service Manual page 92

Troubleshooting Guide
Error
Error Type
No.
182
Master
(1812)
Slave1 Communication Error
(1822) Between Main and Sub
Slave2 Micom of External PCB
(1823)
Slave3
(1824
■ Error diagnosis and countermeasure flow chart
Communication Between
Main-Sub Micom
LED (Yellow) Blinking
Yes
END
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Only for training and service purposes
Error Point
Failure Receiving Signal
Between Main and Sub
Micom
No No
Push the RESET
button
1. Failure Receiving Signal Between Main and Sub
Micom
No
Replay On-boarding
- 92 -
Main Reasons
Replace External PCB
LGE Internal Use Only