Locked control panel - LG Ovens

Sorry to read about your problem, I hope this helps you out.

you can remove the motor, put 120 volts on it, if it does not work, their is your problem.

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Here is what the manual for your oven says about control lock.

Let me know if you have questions.

Control Lock
The Control Lock shuts down the control panel pads to prevent
unintended use of the oven(s). The Control Lock will remain set
after a power failure, if set before the power failure. The only time
it is not available is during the Sabbath Mode or Self-Clean cycle.
When the control is locked, only the TIMER SET · START, TIMER
CANCEL, OVEN LIGHT and CANCEL OFF, UPPER OVEN
CANCEL / OFF or LOWER OVEN CANCEL / OFF pads will
function. On double oven models, CLOCK SET · START will also
function.
The Control Lock is preset unlocked, but can be locked.
To Lock/Unlock Control: Press and hold CONTROL LOCK for
about 3 seconds, until “CONTROL LOCK” and a picture of a lock
appear on the display. Repeat to unlock and remove “CONTROL
LOCK” from the display.

An F9 error code on a General Electric (GE) oven indicates that the oven's electronic control system has detected a problem with the automatic door lock.
The automatic door lock mechanism prevents the oven door from being opened when the oven is set for "Clean" mode.

The malfunction may be a jammed door lock mechanism, a pinched or broken wire, a faulty lock switch or a fault in the control board itself.

9 out of 10 times the lock switch has failed.

STEP # 1 - Disconnect power to the oven!!

Step 2 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.

Step 3 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.

Step 4 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.

Step 5 Locate the six-pin connector on the door lock motor on the right end of the door lock mechanism.

Step 6 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.

Step 7 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.

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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.
Contact a certified GE appliance repair facility if the source of the F9 code has not been discovered. Troubleshooting the oven with the electric power turned on is a job for a certified technician.

You will probably have to replace the door lock.

Hi


Thanks for using FixYa. There is an over-temperature switch built into the electrical panel of the oven. Resetting this switch might solve the issue.

To reset it: Turn off the power. Open the door (if door is locked, turn the power back on and gently try pulling the door every few seconds as the locking mechanism cycles until it is unlocked). Remove the 3 screws below the control panel (screws point upwards, with the head just inside the oven). Pull off the face of the control panel. Let it dangle by the wires so that you have access to the space behind it.

Within the electrical enclosure exposed by removing the control panel, look for a small silver and black device with 2 wires attached to the back. The device is about .5" wide by 1" long and is attached with 2 screws to the sheet metal on the bottom of the electrical enclosure.


Please do accept the solution if the issue is resolved or else revert for further assistance.


Thanks

Rylee

yes you can kill the power and lock out the box with a pad lock for safety. the panel is attached by screws usually on the bottom of panel. lower and seperate the control panel ribbon from the erc (electronic range control). without removing any other components leave ribbon loose and replace panel. turn power back on. if the beeping does not recur, the control panel probably has a stuck key. if it does resume the erc is faulty

Hi, well this is a brain tester!! I think you need really to look at this in a simple way. Check to see where the door lock wires come from first? Find where the mains power comes into? then if it goes directly to the main control board then check to see if there is any power getting through the board to the otherside where the wires disapear into the cooker. I would consider checking the control board for any signs of burn damage and then look at the clock unit to as these are normally the main components in the cooker that will stop it from working.
Good luck,,,,,,,,,,,,,,,

Control panel and oven door lock
The oven door and controls can be locked to avoid unintended use of the oven. The oven doors and controls cannot be locked if the oven is in use, or the oven temperature is 400°F (205°C) or above. The current time of day will remain in the display when the controls and oven doors are locked.
To lock the control panel and both oven doors:

1. Press and release Cancel.
2. Press and hold upper oven Cancel and Cook & Hold for 3 seconds. “Off” appears in the display and “Lock” flashes while the controls and oven doors lock. Both oven doors lock. “Lock” remains lit in the display.

To unlock the control panel and both oven doors:

1. Press and hold upper oven Cancel and Cook & Hold for 3 seconds. “Off” disappears from the display and “Lock” flashes while the controls and oven doors unlock.

look closely at the control panel there will be abutton marked, control lock, yuoll need to hold it down for 3 -5 secs, its achild lock feature, youre manual will explain if you still have it