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How to Fix Your Oven when the Door Won't Open: Troubleshooting Door Lock Problems

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This #diy video shows how to #diagnose and #repair a range with an oven door that won't open.
Sometimes, if you run an oven self-cleaning cycle and then lose power midway through it, the door lock motor can get jammed in the locked position. This video will show you how to take apart the door lock motor and manually unlock the door. However, if the oven door lock is faulty, the lock will get stuck again the next time you run a cleaning cycle. We explain how to check continuity on your door lock motor to see whether you need to replace it.
Unlock the door
1. Pull the range out from the wall and disconnect the power.
2. Remove the back panel to gain access to the lock motor assembly.
3. Remove the screws holding the door lock assembly in place.
4. Release the door-latching rod by pulling the lock motor assembly down and tilting the front inwards.
5. To unhook the locking rod from the drive cam, push the rod forward and open the oven door.
6. Note the position of the drive cam and the hole that the locking rod fits into. Remove the Philips screw holding the drive cam on the motor. Remove the drive cam and rotate it 180 degrees from where it was when the door was locked.
7. Line up the two slots on the bottom of the drive cam with the posts on the motor shaft. Push the drive cam down and lock it on the motor shaft. Make sure that the switch arm aligns with the side edge of the drive cam.
8. Reinstall the Phillips screw on the cam. Re-hook the locking rod back onto the drive cam. Reinstall the motor bracket assembly onto the range.
Now you have two options. You can either reassemble the oven and get cooking, or you can go to the next section to check if the door lock is faulty. If the door lock is faulty, you’ll run into the same problem the next time you run the oven’s cleaning cycle.
Check for a faulty door lock
While oven’s back panel is off and the power to the oven is turned off, follow these steps to test whether the door lock works correctly. If it doesn’t, the oven door will get stuck again the next time you run a cleaning cycle.
For this test, you use a multimeter to check the door lock’s motor circuit for electrical continuity.
1. Leave the power to the oven turned off
2. Locate the two electrical wires going to the lock motor and disconnect them.
3. Set the multimeter to read ohms of resistance on the 20,000 ohms scale. Place one meter lead on each terminal of the lock motor.
--If it measures no continuity, replace the door lock because it’s faulty.
--If the multimeter measures about 2000 ohms, the door lock’s motor is good. Go to the next step,
4. If the previous step showed that the motor is good, check for a break in wire harness. First, plug the wires back into the lock motor and then remove the oven’s upper back panel. Locate the two wires from the motor connected to the electronic control board. Disconnect the wires from the electronic control board and put one meter lead on each wire.
--If the multimeter shows no continuity, repair the broken wire in the harness.
--If the multimeter reads about 2000 ohms, both the harness and door lock are okay, and the problem is that the electronic control board isn’t sending current to the lock motor. Replace the electronic control board.
Or call 1-800-437-1673 to speak with a parts specialist.
The video includes these parts and tools. Look up your model to make sure you get the right parts for your range.
Multimeter
Door Lock
Electronic Control Board
Find parts for your range at:
Sometimes, if you run an oven self-cleaning cycle and then lose power midway through it, the door lock motor can get jammed in the locked position. This video will show you how to take apart the door lock motor and manually unlock the door. However, if the oven door lock is faulty, the lock will get stuck again the next time you run a cleaning cycle. We explain how to check continuity on your door lock motor to see whether you need to replace it.
Unlock the door
1. Pull the range out from the wall and disconnect the power.
2. Remove the back panel to gain access to the lock motor assembly.
3. Remove the screws holding the door lock assembly in place.
4. Release the door-latching rod by pulling the lock motor assembly down and tilting the front inwards.
5. To unhook the locking rod from the drive cam, push the rod forward and open the oven door.
6. Note the position of the drive cam and the hole that the locking rod fits into. Remove the Philips screw holding the drive cam on the motor. Remove the drive cam and rotate it 180 degrees from where it was when the door was locked.
7. Line up the two slots on the bottom of the drive cam with the posts on the motor shaft. Push the drive cam down and lock it on the motor shaft. Make sure that the switch arm aligns with the side edge of the drive cam.
8. Reinstall the Phillips screw on the cam. Re-hook the locking rod back onto the drive cam. Reinstall the motor bracket assembly onto the range.
Now you have two options. You can either reassemble the oven and get cooking, or you can go to the next section to check if the door lock is faulty. If the door lock is faulty, you’ll run into the same problem the next time you run the oven’s cleaning cycle.
Check for a faulty door lock
While oven’s back panel is off and the power to the oven is turned off, follow these steps to test whether the door lock works correctly. If it doesn’t, the oven door will get stuck again the next time you run a cleaning cycle.
For this test, you use a multimeter to check the door lock’s motor circuit for electrical continuity.
1. Leave the power to the oven turned off
2. Locate the two electrical wires going to the lock motor and disconnect them.
3. Set the multimeter to read ohms of resistance on the 20,000 ohms scale. Place one meter lead on each terminal of the lock motor.
--If it measures no continuity, replace the door lock because it’s faulty.
--If the multimeter measures about 2000 ohms, the door lock’s motor is good. Go to the next step,
4. If the previous step showed that the motor is good, check for a break in wire harness. First, plug the wires back into the lock motor and then remove the oven’s upper back panel. Locate the two wires from the motor connected to the electronic control board. Disconnect the wires from the electronic control board and put one meter lead on each wire.
--If the multimeter shows no continuity, repair the broken wire in the harness.
--If the multimeter reads about 2000 ohms, both the harness and door lock are okay, and the problem is that the electronic control board isn’t sending current to the lock motor. Replace the electronic control board.
Or call 1-800-437-1673 to speak with a parts specialist.
The video includes these parts and tools. Look up your model to make sure you get the right parts for your range.
Multimeter
Door Lock
Electronic Control Board
Find parts for your range at:
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