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Error code reference

Bosch Refrigerator Error Code 3-1-1

Ice maker

Bosch codesBosch refrigerator codes

Ice maker: Internal ice maker fault / icemaker motor faulty.

First step from the service manual

Switch appliance off and on; if fault persists, replace ice maker (motor not replaceable).

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What 3-1-1 means on a Bosch refrigerator

Error code 3-1-1 on a Bosch refrigerator indicates an internal fault within the ice maker unit, specifically tied to the ice maker motor. This code is generated when the refrigerator's control system detects that the ice maker motor is not operating within expected parameters. The motor is responsible for driving the ice ejection mechanism, which rotates to push formed ice cubes out of the mold and into the storage bin. When the control board cannot confirm proper motor function, it logs this fault and halts ice production to prevent mechanical damage.

The ice maker in these Bosch units is designed as an integrated assembly. The motor that drives the ejector arm is embedded within the ice maker module itself and is not available as a separate serviceable component. This means standard motor-level repairs such as winding tests or brush replacements are not applicable here. The failure can stem from a seized ejector mechanism, an internally failed motor winding, or a fault in the motor's drive circuit within the ice maker assembly.

The recommended first diagnostic step is a full power cycle: switch the refrigerator off completely, wait at least 30 seconds, and restore power. This clears any transient control faults that may have triggered the code without a true mechanical failure. If the 3-1-1 code returns after the reset, the ice maker assembly requires full replacement. Because the motor is integral to the unit, there is no repair path short of installing a new ice maker module.

Source: manufacturer service documentation.

Common causes of 3-1-1

  1. 01

    Failed ice maker motor

    Part replacement

    The motor inside the ice maker assembly has failed internally, preventing the ejector mechanism from turning. This is the most common cause when the code persists after a power cycle.

  2. 02

    Seized ejector mechanism

    Wiring / connection

    Ice buildup or a physical obstruction can jam the ejector arm, placing excessive load on the motor and triggering the fault. Inspect the ice maker tray area for ice chunks or foreign objects blocking the ejector.

  3. 03

    Transient control board communication fault

    Wiring / connection

    A temporary signal disruption between the main control board and the ice maker module can trigger a false 3-1-1 code. A full power cycle will clear this if no underlying mechanical failure exists.

  4. 04

    Damaged wiring or connector to the ice maker

    Wiring / connection

    A loose, corroded, or broken connector between the refrigerator harness and the ice maker module can interrupt motor control signals and cause this fault code to appear.

  5. 05

    Defective ice maker assembly

    Part replacement

    In some cases the ice maker module arrives from the factory or fails early with an internal defect affecting the motor drive circuit. If the code appears on initial setup or shortly after installation, the unit itself may be defective.

See the test procedure for each cause

Frequently asked questions about 3-1-1

What does 3-1-1 mean on a Bosch refrigerator?
Error code 3-1-1 on a Bosch refrigerator indicates an internal ice maker fault, specifically that the ice maker motor has been detected as faulty. The control system monitors the motor that drives the ice ejection mechanism, and when it does not respond correctly, the code is triggered. Ice production will stop while this fault is active. The motor is integrated into the ice maker assembly and cannot be replaced separately.
Will resetting my Bosch refrigerator clear the 3-1-1 error code?
A power cycle is the recommended first step: turn the refrigerator completely off, wait at least 30 seconds, and turn it back on. If the fault was caused by a temporary signal error or communication glitch, the reset will clear the code. However, if the 3-1-1 code returns after the reset, the ice maker assembly has a genuine mechanical or electrical failure and will need to be replaced.
How do I fix the 3-1-1 error on my Bosch refrigerator?
Start by performing a full power cycle to rule out a transient fault. Also inspect the ice maker tray area for any ice jams or obstructions that could be blocking the ejector arm. Check that the wiring connector to the ice maker module is fully seated and undamaged. If none of these steps resolve the issue and the code returns, the ice maker assembly must be replaced because the motor inside it is not serviceable as a separate part.
Is it safe to keep using my Bosch refrigerator when the 3-1-1 code is showing?
Yes, the refrigerator's cooling and freezing functions will continue to operate normally with this fault active. The 3-1-1 code is specific to the ice maker system and does not affect food safety or the main refrigeration circuit. However, the ice maker will not produce or dispense ice until the fault is resolved. You can continue using the appliance for refrigeration while arranging for the ice maker to be inspected or replaced.
How much does it cost to fix a Bosch refrigerator 3-1-1 error code?
If a simple power cycle or clearing an ice jam resolves the issue, there is no parts cost involved. If the ice maker assembly requires full replacement, parts typically range from roughly 80 to 250 dollars depending on the specific Bosch model. Adding professional labor for diagnosis and installation will generally bring the total repair cost to somewhere between 150 and 450 dollars. Pricing can vary based on your location and service provider.

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