mypros+
Error code reference

Bosch Range Error Code F92

Maximum oven door open time exceeded during self-clean cycle or oven lockout operation.

Bosch codesBosch range codes

Maximum oven door open time exceeded during self-clean cycle or oven lockout operation.

First step from the service manual

If lock motor runs: test continuity of wiring between control module and lock switch on lock motor assembly. If lock motor does not run: test continuity of lock motor windings.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for F92.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What F92 means on a Bosch range

The F92 error code on a Bosch range indicates that the oven door lock mechanism failed to complete its locking or unlocking cycle within the allowed time window during a self-clean operation or a manual door lockout sequence. The control module monitors how long the door remains in a transitional state, and when that threshold is exceeded, F92 is triggered to protect both the appliance and the user. The door lock system consists of a lock motor assembly, a lock switch that reports position back to the control module, and the wiring connecting these components.

The diagnostic path splits based on whether the lock motor is running at all. If the motor runs but the door does not fully lock or unlock, the problem typically lies in the wiring continuity between the control module and the lock switch, or in the lock switch itself failing to signal the correct position. If the motor does not run, the motor windings should be tested for continuity, as an open winding indicates a failed motor that cannot drive the latch mechanism.

Common contributing factors include a jammed or obstructed door latch that prevents physical movement even when the motor runs, a failed lock motor with broken windings, a faulty lock switch that sends no signal or an incorrect signal to the control board, and wiring harness damage such as a loose connector or broken wire between the switch and the module. Identifying which side of the circuit has failed is critical before ordering any replacement parts.

Source: manufacturer service documentation.

Common causes of F92

  1. 01

    Faulty lock motor

    Part replacement

    If the lock motor does not run at all when a clean cycle starts, testing the motor windings for continuity will reveal an open circuit indicating a burned-out motor. A failed motor cannot move the latch and will always cause F92.

  2. 02

    Defective or misaligned lock switch

    Part replacement

    The lock switch on the motor assembly signals the control module when the door has reached the fully locked or unlocked position. If this switch fails or becomes misaligned, the control module never receives confirmation and times out, triggering F92 even if the motor itself is working.

  3. 03

    Broken or disconnected wiring between control module and lock switch

    Wiring / connection

    If the lock motor runs but the door lock cycle still times out, test the wiring harness between the control module and the lock switch for continuity. A broken wire, corroded terminal, or loose connector will interrupt the signal and cause F92.

  4. 04

    Obstructed or jammed door latch mechanism

    Wiring / connection

    Physical debris, grease buildup, or a warped door frame can prevent the latch from moving to the fully locked position even when the motor is running and the wiring is intact. Inspect the latch track and pivot points for blockage or deformation.

  5. 05

    Failed control module

    Part replacement

    If the lock motor runs correctly and all wiring and switch continuity checks pass, a faulty control module that cannot properly drive or read the lock circuit may be responsible. This is the least common cause and should be diagnosed only after all other components are confirmed functional.

See the test procedure for each cause

Frequently asked questions about F92

What does F92 mean on a Bosch range?
F92 means the oven door lock mechanism took longer than the allowed time to complete a lock or unlock cycle during a self-clean cycle or door lockout operation. The control module monitors the lock motor and a position-reporting switch, and it triggers F92 when the door does not reach a confirmed locked or unlocked state within the required time. This is a safety feature that stops the self-clean process from proceeding with an unsecured door.
Can I reset the F92 error code and will that fix the problem?
Resetting the oven by cutting power at the breaker for a few minutes may clear the F92 code temporarily, but it will not fix the underlying mechanical or electrical fault. If the lock motor, switch, or wiring is defective, the error will return the next time a self-clean or lockout cycle is initiated. A proper repair requires diagnosing and correcting the root cause before the self-clean function will work reliably.
Is it safe to use my Bosch oven if it is showing F92?
Standard baking and broiling functions may still operate since F92 is specifically tied to the door lock system used during self-clean cycles. However, you should avoid running the self-clean cycle until the fault is repaired, as the door lock is a critical safety component that prevents the oven door from being opened during extremely high cleaning temperatures. Leaving the issue unresolved and attempting another clean cycle could cause additional damage to the lock assembly or control board.
How much does it cost to repair a Bosch range showing F92?
Repair costs vary depending on which component has failed. A replacement lock motor assembly typically ranges from about 50 to 150 dollars in parts, while a control module can range from 150 to 400 dollars or more. Adding professional labor, total repair costs generally fall between 150 and 500 dollars depending on the specific failure and your location. If the fault is only a loose or damaged wire, the repair may cost much less.
How do I diagnose whether the lock motor or the wiring is causing F92?
Start by observing whether the lock motor runs when you initiate a self-clean cycle. If the motor runs but the code still appears, use a multimeter to test the continuity of the wiring between the control module and the lock switch on the motor assembly, since a break in that circuit prevents the control module from receiving a position signal. If the motor does not run at all, test the motor windings directly for continuity. An open winding reading confirms the motor has failed and needs replacement.

Related Bosch range codes

All Bosch range codes
View all 72 Bosch range codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass