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Error code reference

Bosch Range Error Code E106

Door latch does not lock

Bosch codesBosch range codes

Door latch does not lock — latch operation not determined by control module; door latch does not lock after 1 minute and further attempts will stop.

First step from the service manual

Check latch motor and switch connections/wires. Check connections to control board. Check wires between control board and latch. Check operation of door switch. Check latch for binding/mechanical latch failure.

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

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What E106 means on a Bosch range

The E106 error code on a Bosch range indicates a door latch failure during a self-clean cycle. Specifically, the control module cannot confirm that the door latch has successfully moved to the locked position. The control attempts to drive the latch motor and waits up to one minute for confirmation from the latch switch that the door has locked. If that confirmation never arrives, the control module halts further latch attempts and displays E106 to prevent the self-clean cycle from running with an unsecured door.

The latch system consists of a small motor that drives the latch bolt into the locked position, and one or more microswitches that signal the control board when locking is complete. If the control board sends power to the motor but receives no feedback signal, it cannot determine whether the latch actually moved. This failure can stem from a broken circuit anywhere along the path: loose or corroded connectors at the latch assembly, damaged wiring between the latch and the control board, a faulty latch motor, or a defective latch position switch.

Mechanical binding is another common root cause. If the latch mechanism itself is obstructed, misaligned, or worn, the motor may run but fail to fully extend the bolt. In that case, the switch never actuates because the latch never reaches the locked position. A thorough diagnosis requires inspecting connectors, testing wiring continuity, verifying switch operation, and physically inspecting the latch assembly for obstruction or mechanical damage.

Source: manufacturer service documentation.

Common causes of E106

  1. 01

    Loose or corroded wiring connections

    Wiring / connection

    Connectors at the latch assembly or control board can become loose or corroded over time, breaking the circuit between the latch motor and the control module. Inspect all connectors along the latch wiring harness for signs of corrosion, heat damage, or incomplete seating.

  2. 02

    Mechanical latch binding or obstruction

    Wiring / connection

    Grease buildup, food debris, or a misaligned latch bolt can prevent the latch from physically completing its travel to the locked position, so the position switch never actuates. Manually inspect the latch mechanism for obstructions, misalignment, or visible wear.

  3. 03

    Faulty latch position switch

    Part replacement

    The microswitch that signals the control board when the door is locked can fail electrically or become mispositioned. If the switch does not close at the correct point in latch travel, the control board never receives the confirmation signal even when the motor runs correctly.

  4. 04

    Failed latch motor

    Part replacement

    The small motor that drives the latch bolt can burn out or seize, leaving the latch unable to move at all. If the motor receives power but does not run, or runs intermittently, the latch will not reach the locked position within the one-minute window.

  5. 05

    Defective control board

    Part replacement

    If the control board is not correctly sending power to the latch motor or is unable to read the signal from the latch switch, the latch cycle will fail even if all other components are functional. This is the least likely cause and should be diagnosed only after all wiring, switches, and the latch motor have been tested and cleared.

See the test procedure for each cause

Frequently asked questions about E106

What does E106 mean on a Bosch range?
E106 means the oven's door latch failed to reach the locked position within the required time limit during a self-clean cycle attempt. The control module monitors the latch system and stops trying after one minute if it cannot confirm the door is locked. The code points to a problem in the latch motor, latch switch, connecting wiring, or the latch mechanism itself. The oven will not allow a self-clean cycle to proceed until the fault is resolved.
Can I fix E106 on my Bosch range myself?
Some causes of E106 can be addressed without professional help. Checking and reseating loose connectors, clearing debris from the latch mechanism, and inspecting wiring for visible damage are reasonable DIY steps. However, testing the latch motor and switch with a multimeter, or replacing control board components, requires comfort with appliance electrical systems. If you are not confident working around appliance wiring, a qualified technician should perform the diagnosis.
Is it safe to use my Bosch range when E106 is displayed?
E106 specifically affects the self-clean function, which requires a locked door to operate safely. Normal baking and broiling do not require the latch to be locked, so those functions may still be usable. However, you should not attempt to run a self-clean cycle while this error is active, as the safety interlock system is not operating correctly. Address the fault before using the self-clean feature.
Will resetting my Bosch range clear the E106 error?
Resetting the range by cutting power at the breaker for a few minutes may temporarily clear the displayed code, but it will not fix the underlying problem. If the latch motor, switch, or wiring is faulty, the error will return as soon as another self-clean cycle is attempted. A reset is useful for ruling out a control module communication glitch, but a proper diagnosis of the latch system is still needed.
How much does it cost to repair a Bosch range E106 error?
Repair costs vary depending on which component has failed. If only a wiring connector needs reseating or cleaning, the cost may be limited to a service call fee, typically in the range of $75 to $150. Replacing a latch motor or latch switch assembly generally adds $50 to $200 in parts. A control board replacement is the most expensive scenario, often ranging from $200 to $500 or more depending on the specific model. Getting a diagnostic assessment before authorizing parts replacement helps avoid unnecessary expense.

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