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F3 error (Button short error)
Or button does not input
Unplug the unit
1
Check the connecting states between
Touch PCB and CN53 of Main PCB.
Is it OK?
CN1
CN2
CN1
CN53
Yes
TROUBLESHOOTING
No
Reconnect or adjust the
connection
-8-25-
2
Replace the Control panel.
(With Glass Touch PCB) And then check button
operation using key test mode
(1) Press the Upper or Lower CLEAR/OFF key.
(2) Press the button in the following order : + → - → Upper
CLEAR/OFF(Upper CLEAR/OFF hold for 3 seconds)
(3) Press the START/Oven Light button again.
(4) Select the "t3" by press the + button and press the
START/Oven Light button.
(5) Check the button.
(Refer to the next page, appendix)
No
3
If button is not operated,
Replace the Main PCB
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