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Error code reference

Bosch Refrigerator Error Code 2-4-1

Ice maker

Bosch codesBosch refrigerator codes

Ice maker: Self test failed as the door was open.

First step from the service manual

Fix the door switch with tape.

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

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What 2-4-1 means on a Bosch refrigerator

Error code 2-4-1 on a Bosch refrigerator indicates that the ice maker self-test failed because the appliance detected an open door condition during the test sequence. The ice maker runs an automated self-test to verify that its components, including the motor, thermostat, and ejector mechanism, are functioning correctly. This test requires a closed door environment to maintain the correct temperature and sensor readings. If the refrigerator or freezer door is open, or if the door switch signals an open state, the self-test cannot complete and code 2-4-1 is triggered.

The door switch is the central component in this diagnostic. It sends a signal to the control board indicating whether the door is open or closed. If the switch is faulty, misaligned, or stuck in the open position, the control board will interpret the door as open even when it is physically shut. The first recommended diagnostic step involves temporarily securing the door switch with tape to hold it in the closed position, which allows the self-test to run and confirms whether the switch is the source of the false open-door signal. A failed door switch, poor switch contact, or damaged wiring to the switch are the most common hardware causes of this code.

Source: manufacturer service documentation.

Common causes of 2-4-1

  1. 01

    Faulty or stuck door switch

    Part replacement

    The door switch may be stuck in the open position or have failed internally, causing it to continuously signal that the door is open. Taping the switch closed temporarily to see if the self-test completes is the recommended first step to confirm this fault.

  2. 02

    Misaligned door switch

    Wiring / connection

    The door switch may be physically misaligned so the door does not depress the switch plunger fully when closed. Inspect the switch position and the door alignment to see if the plunger is making proper contact.

  3. 03

    Door left open during self-test

    Wiring / connection

    If the door was genuinely open when the ice maker initiated its self-test, the code will trigger as a precaution. Close the door securely and attempt to restart the self-test before assuming a component failure.

  4. 04

    Damaged wiring to the door switch

    Part replacement

    Broken, pinched, or corroded wiring between the door switch and the control board can cause an intermittent or constant open-door signal. Inspect the wiring harness at the switch connector for visible damage or loose pins.

  5. 05

    Control board misreading switch signal

    Part replacement

    In rare cases, the main control board may be incorrectly interpreting the door switch input even when the switch itself is functional. This is typically diagnosed only after confirming the switch and wiring are both in good condition.

See the test procedure for each cause

Frequently asked questions about 2-4-1

What does 2-4-1 mean on a Bosch refrigerator?
Error code 2-4-1 means the ice maker self-test failed because the refrigerator detected an open door during the test. The ice maker requires a closed door to complete its diagnostic sequence. This code most commonly points to a faulty or misaligned door switch that is sending a false open-door signal to the control board.
How do I fix error code 2-4-1 on a Bosch refrigerator?
Start by taping the door switch into the closed position to see if the ice maker self-test completes successfully. If the test passes with the switch taped, the door switch is likely faulty and should be replaced. Also check that the door is properly aligned and that the switch plunger is being fully depressed when the door closes. If the problem persists after replacing the switch, inspect the wiring harness connected to the switch.
Will resetting the refrigerator clear error code 2-4-1?
A reset may temporarily clear the code, but it will return if the underlying cause, typically a faulty door switch, has not been addressed. The ice maker will attempt its self-test again and trigger the same code if the door switch is still signaling an open-door condition. It is best to diagnose and correct the switch issue before relying on a reset.
Is error code 2-4-1 on a Bosch refrigerator a safety concern?
This code does not represent a safety hazard. It indicates the ice maker self-test was interrupted, not a problem with refrigerant, electrical safety, or food storage temperatures. However, leaving the issue unresolved can prevent the ice maker from operating correctly, so it is worth addressing promptly.
How much does it cost to repair error code 2-4-1 on a Bosch refrigerator?
If the fix requires only a door switch replacement, parts typically range from around $15 to $50 depending on the specific model. Adding professional labor, total repair costs generally fall between $100 and $200. If the control board is involved, costs can be higher, but board replacement is an unlikely outcome for this particular code.

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