F42 is associated with lower-oven motorized latch will not lock. Use the exact Bosch model number and the observed behavior before deciding what the appliance needs.
F42 is associated with lower-oven motorized latch will not lock. Use the exact Bosch model number and the observed behavior before deciding what the appliance needs.
Model compatibility: Bosch reuses codes across series and model years, so F42 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Signs
Symptoms you may notice
the appliance may refuse to start
a cycle may stop unexpectedly
the door may remain locked or fail to lock
the control may not recognize the expected door position
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Get help
When to call a technician
A returning door code with normal external alignment requires testing of the lock/switch, wiring, and model-specific control path. The useful service history includes when the code appears, whether it is repeatable, and what changed immediately before it.
Seeing this code on your Bosch appliance?
Book a specialist visit for a clear estimate and approval before any repair.
We organize Bosch repair across ten regional service areas — from the Westside, Valley, and South Bay through North, Central/Coastal, and South Orange County. Open Locations, pick your region, or send your ZIP code if you are unsure which page applies.
No. This site is for Bosch appliance repair routed through Southern California service areas — not a national dispatch desk covering every U.S. metro.
Request an appointment with your appliance model and symptom. We confirm a visit window, diagnose on site, then give a clear estimate. Approved work only proceeds after you agree.
Yes. You get an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work.
Yes. We diagnose and repair Bosch refrigerators, dishwashers, washers, dryers, ovens, cooktops, and coffee machines common in LA and Orange County homes.
Ready to get your Bosch appliance working again?
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