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Error code reference

Bosch Washer Error Code E:01

Door open

Bosch codesBosch washer codes

Door open — door lock not engaged.

First step from the service manual

Check that door is properly closed and door lock is engaged.

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

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What E:01 means on a Bosch washer

The E:01 error code on a Bosch washer indicates that the control system has detected an open or unengaged door lock condition. The washer's control board continuously monitors the door lock mechanism through a dedicated circuit. When the board does not receive confirmation that the door latch has properly engaged and the lock has actuated, it triggers E:01 and prevents the cycle from starting. This is a fundamental safety interlock: the machine will not fill with water or begin drum rotation if the door lock signal is absent.

The door lock assembly, also called the door interlock or door latch switch, contains both a mechanical latch and an electrical switch or set of contacts. When the door closes properly, the latch catches the striker on the door, and the lock's internal switch closes to send a confirmation signal back to the control board. If any part of this sequence fails, whether because the door is physically ajar, the latch mechanism is worn, or the switch contacts are faulty, the board reads the door as open and displays E:01.

Wiring between the door lock assembly and the control board is another potential failure point. A loose connector at the lock assembly or a broken wire in the harness can interrupt the signal even when the lock itself is mechanically sound. In some cases, the control board itself may have a fault in the input circuit that monitors the door, though this is a less common cause compared to physical lock and wiring issues.

Source: manufacturer service documentation.

Common causes of E:01

  1. 01

    Door not fully closed

    Wiring / connection

    The most frequent cause is simply a door that has not been pushed firmly enough to engage the latch. Clothing or debris caught in the door seal can also prevent a complete close.

  2. 02

    Worn or broken door latch

    Part replacement

    The plastic latch hook on the door or the striker plate on the cabinet can wear down or break over time, preventing the latch from catching securely. Visually inspect both components for cracks, deformation, or missing pieces.

  3. 03

    Faulty door lock assembly

    Part replacement

    The internal switch contacts inside the door lock interlock can fail even when the latch mechanism appears intact. If the latch catches but the error persists, the lock assembly is likely not sending the confirmation signal to the control board.

  4. 04

    Loose or damaged wiring connector

    Wiring / connection

    The connector at the door lock assembly can work loose due to vibration over time, or individual wires in the harness can break. Unplug the washer and check that the connector at the lock is fully seated.

  5. 05

    Control board input fault

    Part replacement

    In rare cases, the control board's door lock monitoring circuit fails, causing it to misread the lock status even when the lock is functioning correctly. This is typically diagnosed only after all other components have been confirmed good.

See the test procedure for each cause

Frequently asked questions about E:01

What does E:01 mean on a Bosch washer?
E:01 means the washer's control board is not detecting a confirmed signal from the door lock assembly. The machine requires the door to be fully closed and the lock to be engaged before any cycle can begin. This is a safety interlock that prevents the washer from operating with an unsecured door. The error can be triggered by a door that is not fully shut, a faulty latch, a failed lock assembly, or a wiring problem.
How do I fix the E:01 error on my Bosch washer?
Start by firmly pushing the door closed until you hear the latch click, then try starting the cycle again. Check that no laundry is trapped in the door seal preventing a full close. If the error continues, inspect the door latch and striker for visible damage. A persistently faulty door lock assembly will need to be replaced, which is a repair most technicians can complete in under an hour.
Is it safe to use my Bosch washer when E:01 is displayed?
No, and the machine will not allow you to run a cycle while E:01 is active. This is intentional: the door lock interlock is a critical safety feature that prevents the drum from spinning with the door unsecured. Do not attempt to bypass or defeat the door lock circuit.
Will resetting my Bosch washer clear the E:01 error?
A reset by unplugging the washer for a minute or two may temporarily clear the error, but it will return immediately if the underlying cause is not resolved. If the door lock assembly or latch is physically faulty, no reset will permanently clear the code. A reset is only a lasting fix if the error was caused by a one-time glitch rather than a component failure.
How much does it cost to repair an E:01 error on a Bosch washer?
If the repair requires a new door lock assembly, parts typically range from $30 to $90 depending on the specific model. Adding professional labor, total repair costs generally fall between $100 and $200. If the issue is only a worn door latch hook or striker, parts costs are usually on the lower end of that range.

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