LG LSE4617ST Service Manual page 96

CHECKING FLOW CHART BY FAILURE
F-11 error (communication error)
F-11 error
Check the Connection between Main PCB's CN64 and System PCB's CN10
Harness
CN10
Normal?
Yes
Replace the Oven SYSTEM PCB
Reset failure log and Check the F-code.
1. Press the ant button, and encoder is placed in the Off
2. Press the button in the following orderv
: +/- ("+" and "-" hold for 3 seconds simultaneously)
Error
Code
3. In order to reset failure log, move the encoder and place it in the Off
4. Press "+" and "-" hold for 3 seconds simultaneously again.
Normal?
Yes
END
CN64
No
Number of Error occurrencev
No
9-21
Reconnect
Replace the Cooktop system PCB