GE Café Range Error Code F91: Door Latch Motor... | appliancefaults.com

Technical Background:

The F91 error code indicates a problem with the door latch mechanism. The main control unit (MCU) monitors the voltage feedback from the door latch motor and switch. If the MCU detects an incorrect voltage or an unexpected change in state, it triggers the F91 error. The voltage path includes the wiring harness, door latch motor, and door latch switch.

Symptoms:

The homeowner observes that the oven door will not lock or unlock. The control panel displays an F91 error code. The oven may be inoperable.

Possible Causes:

Faulty door latch motor
Defective door latch switch
Wiring harness issue between the MCU and door latch assembly
Corrupted software on the main control unit (MCU)
Loose connection at the MCU or door latch assembly connector
Mechanical obstruction preventing the door latch from operating freely

Solution:

1

Disconnect power to the range at the breaker panel. Verify 0V AC at the range receptacle using a multimeter.
2

Locate the door latch assembly. This is typically accessed by removing the range top or back panel using a 1/4-inch nut driver.
3

Disconnect the wiring harness from the door latch motor assembly. Inspect the connector and wiring for any signs of damage or corrosion.
4

Test the door latch motor for continuity. An open circuit indicates a faulty motor. Also, verify the door latch switch functionality with a multimeter.
5

Replace the door latch motor assembly with a new, OEM part.
6

Reconnect the wiring harness to the new door latch motor assembly. Ensure a secure connection.
7

Restore power to the range at the breaker panel. Monitor the display for the F91 error code. Run a self-test cycle if available. The error should clear.

Safety Warning:

Lock Out/Tag Out (LOTO) the breaker before servicing. High voltage is present when the range is powered on. Use extreme caution when working around electrical components.

Prevention:

Avoid slamming the oven door. Periodically inspect the door latch mechanism for any signs of wear or damage. Clean any debris from the door latch area to ensure smooth operation.

Expert Tip:

After replacing the door latch motor, enter the service mode by pressing and holding the Bake and Broil buttons simultaneously for 3 seconds. Navigate to the door latch calibration function and run it to ensure proper operation.

Frequently Asked Questions

•How do I access the door latch assembly on my GE Café range?

Typically, you'll need to remove the range top or the back panel. Refer to your service manual for specific instructions on your model. Screws are often secured with a 1/4-inch nut driver.

•What voltage should I expect to see at the door latch motor connector?

The voltage will vary depending on the state of the door latch. Consult the wiring diagram for your specific model. You may see 120V AC during the locking or unlocking sequence, or a lower DC voltage signaling the door position.

•Where can I find a replacement door latch motor assembly for my GE Café range?

You can find replacement parts at appliance parts retailers, both online and locally. Be sure to have your model number handy to ensure you get the correct part. Using an OEM part is highly recommended.

GE Café Range Error Code F91: Door Latch Motor Replacement Guide

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•How do I access the door latch assembly on my GE Café range?

•What voltage should I expect to see at the door latch motor connector?

•Where can I find a replacement door latch motor assembly for my GE Café range?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: