Range Medium Severity
F43 Appliance Error Code

Bosch Range F43 Error: Door Stuck Locked

What Does Bosch Range Error Code F43 Mean? Error code F43 means the oven door is stuck locked after self-cleaning. Usually, the oven just needs more time to cool down — the lock releases automatically below a safe temperature. What You Can Do Wait 2 hours for cooling. If still locked, turn off the breaker […]

Quick Assessment

Answer to continue safely

Is it safe to keep using?

Yes. Once the door unlocks (either from cooling or power cycle), the oven is fine to use.

Can I reset the code?

Yes. Cooling + power cycle releases the lock in most cases.

When to stop immediately?

Stop if you notice: Door stays locked after 3+ hours and power cycle, Latch mechanism makes grinding noise.

Symptoms You May Notice

Oven door won't open

The door remains locked after the self-clean cycle has completed and oven has cooled.

Possible Causes

1

Oven still cooling

The oven has not cooled below the unlock threshold yet.

DIY Possible
2

Jammed latch

The lock mechanism is mechanically stuck.

Requires Professional

Safe Checks You Can Do

These checks are safe for homeowners. No disassembly required. Do not remove panels or access internal components.
  1. 1

    Wait and power cycle

    Wait 2 hours for full cooling. If still locked, turn off breaker for 10 minutes.

    The latch releases when power is removed on most Bosch models.

When to Call a Professional

Contact a qualified technician if:

  • Latch does not release after power cycle
  • Lock motor is jammed
  • Latch hook is bent

Need Professional Help?

Find qualified technicians in your area for proper diagnostics and repair.

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