GE Range Error Code F43

F43 means the motorized door latch was commanded to unlock but the control board did not receive confirmation that the unlock was completed. The oven detects this failure through a feedback switch at contacts A and B on the latch assembly. As a safety precaution, all heating functions are disabled when this code is active. The fault is typically in the latch motor, feedback switch, or the mechanical latch linkage itself.

A power reset by turning off the circuit breaker for 30 seconds may temporarily clear the code if the latch motor completes its cycle on restart. However, if the underlying problem is a failed motor, faulty switch, or mechanical obstruction, the code will return the next time a lock or self-clean cycle is initiated. A reset alone does not repair the root cause.

Repair costs vary depending on the failed component. A replacement latch motor and switch assembly typically costs between $40 and $120 for the part alone. If a technician is hired for the diagnosis and repair, total costs including labor generally range from $150 to $350. Control board replacement, if required, can push costs higher, which may make it worth comparing repair cost against appliance replacement value.

No, the oven will not allow heating functions to operate while F43 is active, which is a built-in safety response. Beyond that, the door may remain physically locked, preventing access to the oven cavity. Do not attempt to force the door open, as this can damage the latch mechanism further. Resolve the underlying fault before attempting to use the oven again.

Start by confirming whether the latch motor is rotating when the unlock command is given and whether the feedback switch at contacts A and B changes state. If the motor is not rotating, check for power at the motor and inspect the wiring harness for damage. If the motor runs but the switch does not respond, the switch or the mechanical linkage may need replacement. Cleaning debris from the latch mechanism is a good first step if there are no obvious electrical failures.