GE Range Error Code F45

F45 means the motorized door latch system is reporting a contradictory switch state: both contact A and contact B are either open or closed at the same time, which is not a valid condition. The control board cannot confirm whether the oven door latch is locked or unlocked, so it shuts off all heating functions. The fault points to a problem with the latch motor, the internal switch contacts, or the wiring connecting the latch to the control board.

The range automatically disables all heating functions when F45 is active, so the oven and surface elements will not operate. This prevents the oven from running with an unconfirmed latch state during or after a self-clean cycle. Do not attempt to defeat the lockout. The range should be diagnosed and repaired before returning it to normal use.

Repair costs vary depending on which component has failed. A replacement latch motor assembly typically runs between 50 and 150 dollars for the part, with professional labor adding 100 to 200 dollars depending on your area. Wiring harness repairs are often less expensive if no parts are needed. A control board replacement is the most costly scenario, with parts ranging from 150 to 350 dollars or more. Getting a specific diagnosis before ordering parts helps avoid unnecessary expenses.

A power reset may temporarily clear the fault display, but if the underlying latch problem still exists, the error will return as soon as the control attempts to use the latch again. The control board actually runs its own automatic recovery attempt first, waiting for the oven to cool below 585 degrees Fahrenheit and then trying to drive the latch to a valid position within one minute. If that does not resolve it, the fault requires physical repair, not just a reset.

Start by allowing the oven to fully cool if it was running a self-clean cycle, since the latch motor cannot move until the cavity drops below 585 degrees Fahrenheit. After cooling, check the latch assembly for visible obstructions or damage, inspect the wiring harness and connectors for heat damage or corrosion, and test the latch motor and switch contacts for correct operation. If the motor or switch contacts are faulty, the latch assembly typically needs to be replaced. A control board replacement is only warranted after the latch and wiring have been confirmed good.