What's Happening

F45 appears when the motorized door latch engages correctly during self-clean but then fails to retract (unlock) when commanded to do so after the cycle completes and temperatures have dropped. Unlike F41 (latch won't lock), F45 is specifically the failure to unlock. Causes include a seized latch mechanism that has warped under self-clean temperatures, a failed latch motor that cannot generate enough torque to retract, faulty wiring to the motor, or a latch switch stuck in the locked position that the control board reads as still locked even if the mechanical latch has moved.

How to Fix It

Do not force the door open. Turn off power at the breaker for 10 minutes — this is the safest way to attempt a latch reset, as the board may release the motor on startup. If the door remains locked, the latch assembly (00641361) needs to be replaced. Access is from the top of the oven after removing the control panel; this is a job best done by a technician if you are not comfortable with appliance disassembly. As a last resort before a service call, some Bosch models allow manual latch release via a slot on top of the oven — consult your model's service manual.

Frequently Asked Questions
What does F45 mean on a Bosch oven?
F45 means the motorized door latch engaged during self-clean but cannot retract to unlock the door afterward. The door is physically locked and the oven will not release it due to the motor or latch mechanism failure.
How do I open my Bosch oven door when it shows F45?
Cut power at the breaker for 10 minutes and restore it — this sometimes resets the latch motor and releases the door. Do not pry or force the door. If it remains locked, some Bosch models have a manual release access on the top of the oven; check your service manual. Otherwise, a technician needs to access the latch mechanism from above.
Can I prevent F45 from happening again?
Avoid using self-clean more than necessary — the extreme heat (up to 900°F) stresses the latch mechanism. If you use self-clean, stay nearby during the post-cycle cool-down and ensure the oven drops below 300°F before it tries to unlock. Running self-clean when the oven is already warm (not cold) also increases mechanical wear on the latch.
How much does it cost to fix Bosch F45?
The latch assembly (00641361) costs $55–$95. Labor to access and replace it typically runs $100–$200 at an authorized Bosch service center, for a total repair of $150–$295.