F11 Error (Communication Error) - LG LWD3010ST Service Manual

CHECKING FLOW CHART BY FAIRURE
F-11 error (communication error)
F-11 error
Check the connection between MAIN PCB'S CN06 and SYSTEM PCB'S CN13
Normal?
Yes
Replace the SYSTEM PCB
(EBR43296803)
Reset failure log and Check the F-code.
1. press the "clear" key
2. Press and Hold "LOWER BAKE" and "LOWER BROIL" key for 3 seconds
3. In Order to reset failure log, press CLEAR pad
4. Press and Hold "LOWER BAKE" and "LOWER BROIL" key for 3 seconds again.
Normal?
Yes
END
No
No
9-21
Reconnect
Replace the Main PCB
(EBR64624503)