Hello,
An F9 error code on oven indicates that the
oven's electronic control system has detected a problem with the
automatic door lock.
Fault : F9
Condition: Door lock safety circuit on power relay board sensed
Replace power relay board.
Disconnect power to the oven. Open the oven door. Remove three screws from underneath the oven's
control panel. Lift the control panel straight up to disengage the
mounting pins on the top corners of the panel, then tip the panel toward
you.
Inspect the door lock mechanism. The mechanism is in the lower left area
of the space behind the control panel. Rotate the cam on the door lock
mechanism to be certain it moves without binding. Replace the mechanism
if its mechanical parts do not function properly.
Inspect the wires that connect the door lock mechanism to the control
panel. Check for pinched or broken wires. Check for wires with frayed
insulation. Repair wires as needed if defects are present.
Locate the six-pin connector on the door lock motor on the right end of the door lock mechanism.
Rotate the cam on the door lock mechanism to the unlocked position. Test
the resistance between Pin 3 and Pin 1 of the door lock connector with
the ohmmeter. The resistance should be 0. Replace Lock Switch 2 of the
door lock mechanism if the resistance reads other than 0.
Rotate the cam on the door lock mechanism to the locked position. Test
the resistance between Pin 3 and Pin 2 of the door lock connector with
the ohmmeter. The resistance should be 0. Replace Lock Switch 1 of the
door lock mechanism if the resistance reads other than 0.
Take care.
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