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

Technical Background:

The F91 error code indicates a problem within the door latch circuit. The MCU (Main Control Unit) monitors the voltage feedback from the door latch solenoid and door switch to verify the door is properly locked during self-clean and some cooking cycles. An incorrect voltage or an open/short circuit throws the F91 error.

Symptoms:

The oven door may not lock or unlock properly. The F91 error code appears on the display, and the oven may be unable to start a bake or broil cycle.

Possible Causes:

Faulty door latch solenoid
Wiring harness damage to the door latch circuit
Issue with the oven control board (OCB) / MCU
Door switch malfunction
Mechanical binding of the door latch mechanism

Solution:

1

Disconnect power to the range at the breaker panel (LOTO).
2

Locate and access the door latch solenoid assembly. This usually involves removing the range’s control panel or accessing it from the rear.
3

Disconnect the wiring harness from the solenoid assembly.
4

Using a multimeter, check the solenoid for continuity. A reading of infinity (open circuit) or a very low resistance (short circuit) indicates a faulty solenoid.
5

If the solenoid tests bad, replace it with a new one.
6

Reconnect the wiring harness to the new solenoid assembly.
7

Restore power to the range at the breaker panel and test its operation.

Safety Warning:

Always disconnect power to the range at the breaker panel before performing any repairs. Lock Out / Tag Out (LOTO) procedures must be followed. This appliance operates on 120V AC and 240V AC, which can cause severe injury or death.

Prevention:

Avoid slamming the oven door. Periodically inspect the door latch mechanism for any signs of binding or damage. Ensure proper ventilation around the range to prevent overheating of the control board.

Expert Tip:

Before replacing the oven control board, enter service mode (usually involves a specific button sequence - refer to the service manual) and check the door latch sensor readings. This will help determine if the problem is actually with the control board or a sensor/actuator issue. Often pressing cancel, then holding both bake and broil simultaneously enters service mode, consult your service manual to confirm your specific model.

Frequently Asked Questions

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

The location varies by model but often involves removing screws from the rear access panel or the control panel. Refer to the service manual for your specific model.

•What is the correct resistance reading for a working door latch solenoid?

Typically, a good solenoid will read between 200-500 ohms, but consult the service manual for the precise specification for your model.

•Can a faulty door switch also cause an F91 error?

Yes, a faulty door switch that isn't properly registering the door's closed position can trigger the F91 error. It’s less common than a solenoid failure, but should be checked.

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

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

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

•What is the correct resistance reading for a working door latch solenoid?

•Can a faulty door switch also cause an F91 error?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: