LG ABNW85GB9A0 Svc Manual page 83

Part 4 Trouble Shooting
6.6 Troubleshooting Outdoor Error
CH 05/53 (Indoor/Outdoor Device Communication Error) → Detection by indoor devices
Checking Method of Outdoor PCB
Checking whether outdoor PCB is
Purpose
Check reactor connection state.
Check fuse state
Check whether outdoor PCB LED is lighted.
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Only for training and service purposes
Items for checking
normal
Fuse Point
Lighting of LED, fuse damage, and reactor
connection error
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