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Error code reference

Bosch Refrigerator Error Code 3-1-9

Ice maker

Bosch codesBosch refrigerator codes

Ice maker: Crusher solenoid faulty.

First step from the service manual

Check solenoid; if problematic replace solenoid; if solenoid OK replace icemaker.

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

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What 3-1-9 means on a Bosch refrigerator

Error code 3-1-9 on a Bosch refrigerator indicates a fault with the ice maker's crusher solenoid. The crusher solenoid is an electromechanical component responsible for actuating the ice crushing mechanism, which redirects ice between crushed and cubed modes depending on user selection. When the refrigerator's control board detects an abnormal electrical signal from this solenoid, such as an open circuit, short circuit, or out-of-range resistance, it logs the 3-1-9 fault and typically disables the affected ice maker function.

The most common root causes include a failed solenoid coil, a wiring harness issue between the control board and the solenoid, or a mechanical binding condition that causes excessive electrical load. A faulty solenoid coil will typically present as either infinite resistance (open coil) or very low resistance (shorted coil) when tested with a multimeter. Connectors and wiring in the ice maker compartment are also subject to moisture exposure and corrosion, which can produce intermittent or permanent faults that mimic a failed solenoid.

Diagnosis begins with direct testing of the crusher solenoid: disconnect the solenoid wiring connector and measure coil resistance. If the reading is outside the expected range or shows an open or short, the solenoid requires replacement. If the solenoid tests within specification, the fault likely originates in the wiring harness or the ice maker assembly itself, and replacing the entire ice maker unit is the recommended next step.

Source: manufacturer service documentation.

Common causes of 3-1-9

  1. 01

    Failed crusher solenoid coil

    Part replacement

    The solenoid coil can burn out or break internally, producing an open or shorted circuit. Testing with a multimeter will show infinite resistance for an open coil or near-zero resistance for a shorted coil, both of which confirm solenoid failure.

  2. 02

    Corroded or damaged wiring connector

    Wiring / connection

    The ice maker compartment environment exposes wiring connectors to moisture, which can cause corrosion or intermittent contact at the solenoid connector. Inspect the connector pins for greenish corrosion, pitting, or pushed-back terminals.

  3. 03

    Damaged wiring harness

    Part replacement

    The harness running from the control board to the crusher solenoid can develop chafing, pinching, or breaks, especially where it routes through hinges or sharp cabinet edges. A continuity test of each wire in the harness can identify an open or short.

  4. 04

    Mechanical binding in the crusher mechanism

    Wiring / connection

    If the ice crushing mechanism is jammed or seized, the solenoid may draw excessive current trying to actuate, which can trigger the fault. Inspect the crusher assembly for ice buildup or broken components that could restrict movement.

  5. 05

    Faulty ice maker assembly

    Part replacement

    If the solenoid and all wiring test correctly, the fault may originate within the ice maker assembly itself, such as an internal board or control component. In this case, replacing the complete ice maker unit is the appropriate repair.

See the test procedure for each cause

Frequently asked questions about 3-1-9

What does 3-1-9 mean on a Bosch refrigerator?
Error code 3-1-9 on a Bosch refrigerator indicates a fault with the ice maker's crusher solenoid. The control board has detected an abnormal electrical condition at this solenoid, which is the component responsible for switching the ice maker between crushed and cubed ice modes. The crushed ice function will typically be disabled until the fault is resolved. Repair involves testing the solenoid and replacing either the solenoid or the full ice maker assembly depending on the diagnosis.
Can I fix error code 3-1-9 myself?
A knowledgeable DIYer comfortable with basic electrical testing can diagnose this fault by using a multimeter to check solenoid coil resistance and inspecting the wiring harness and connectors for damage or corrosion. If the solenoid tests faulty, replacing it is a straightforward part swap. However, if the diagnosis points to the ice maker assembly, that replacement is more involved and some homeowners prefer to have a technician handle it.
Is error code 3-1-9 a safety concern?
Error code 3-1-9 is not a safety hazard. It is a component-level fault specific to the ice maker's crusher solenoid and does not affect the refrigerator's cooling performance or food safety. Your refrigerator will continue to run normally, though the crushed ice feature may be unavailable until the issue is repaired.
How much does it cost to repair error code 3-1-9 on a Bosch refrigerator?
Repair costs vary depending on whether only the solenoid needs replacement or the entire ice maker assembly is required. Solenoid replacement parts typically range from around $20 to $60, while a full ice maker assembly can range from $100 to $300 or more for parts alone. Adding professional labor, total repair costs generally fall between $150 and $450 depending on the extent of the repair and your location.
Will resetting my Bosch refrigerator clear error code 3-1-9?
A power reset may temporarily clear the error code from the display, but the code will return if the underlying fault with the crusher solenoid or wiring has not been corrected. Resetting the unit without addressing the cause is not a long-term solution. Proper diagnosis and repair of the solenoid or ice maker assembly is required to permanently resolve the fault.

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