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Error code reference

Bosch Refrigerator Error Code 3-2-9

Ice maker

Bosch codesBosch refrigerator codes

Ice maker: Crusher solenoid faulty.

First step from the service manual

Check solenoid; if problematic replace; if 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 3-2-9 means on a Bosch refrigerator

Error code 3-2-9 on a Bosch refrigerator indicates a fault detected in the ice maker's crusher solenoid. The crusher solenoid is an electromechanical component responsible for actuating the ice crushing mechanism, which switches the ice maker between producing cubed and crushed ice. When the control board sends a signal to the solenoid and does not receive the expected electrical response, or detects an out-of-range resistance or open circuit condition, it logs this fault code and may disable ice production entirely.

The diagnostic process begins with a direct inspection and electrical test of the crusher solenoid itself. A technician should check for continuity and proper resistance across the solenoid coil terminals using a multimeter. A reading of infinite resistance or a short to ground indicates a failed solenoid coil. Wiring harness integrity between the control board and the solenoid should also be inspected for corrosion, broken pins, or chafed insulation that could cause intermittent or complete circuit failure.

If the solenoid tests within acceptable parameters and all wiring connections are secure, the fault likely originates within the ice maker assembly itself, and replacing the complete ice maker unit is the recommended next step. This two-path diagnostic approach helps avoid unnecessary parts replacement by ruling out the lower-cost solenoid component before committing to a full ice maker replacement.

Source: manufacturer service documentation.

Common causes of 3-2-9

  1. 01

    Failed crusher solenoid coil

    Part replacement

    The solenoid coil can burn out or develop an open circuit over time, preventing it from actuating the crusher mechanism. This is confirmed by testing the solenoid terminals with a multimeter and finding infinite resistance or no continuity.

  2. 02

    Damaged or corroded wiring harness

    Wiring / connection

    The wiring connecting the control board to the crusher solenoid can develop breaks, corroded terminals, or loose connector pins that interrupt the electrical signal. A visual inspection and continuity test of the harness will reveal this issue.

  3. 03

    Shorted solenoid coil

    Part replacement

    Instead of an open circuit, the solenoid coil can develop an internal short, causing abnormal current draw that the control board interprets as a fault. Resistance testing across the solenoid terminals will show a reading near zero ohms in this case.

  4. 04

    Faulty ice maker assembly

    Part replacement

    If the solenoid and all wiring test correctly, the fault may originate from within the ice maker assembly itself, such as a failed internal control or mechanical binding. In this case, replacing the full ice maker unit is the recommended repair.

See the test procedure for each cause

Frequently asked questions about 3-2-9

What does 3-2-9 mean on a Bosch refrigerator?
Error code 3-2-9 on a Bosch refrigerator indicates a fault with the ice maker's crusher solenoid. This solenoid controls the switching mechanism between cubed and crushed ice. The refrigerator's control board has detected an electrical problem with this component, such as an open circuit, a short, or a wiring issue. Ice production or the crush function may be disabled until the fault is resolved.
Can I fix error code 3-2-9 myself?
A knowledgeable DIYer can attempt the first diagnostic step, which involves inspecting the wiring harness for visible damage and testing the crusher solenoid for continuity using a multimeter. If the solenoid is faulty, replacing it requires accessing the ice maker compartment and disconnecting electrical connectors. If the solenoid tests fine, replacing the full ice maker assembly is the next step, which is more involved and may be better suited to a qualified technician.
Is error code 3-2-9 a safety concern?
This error code is not a safety hazard. It specifically relates to the ice maker's crusher solenoid and does not affect the refrigerator's core cooling or food preservation functions. Your refrigerator will continue to keep food cold normally. The main impact is a loss of ice crushing capability or potentially a complete stop of ice production.
How much does it cost to repair error code 3-2-9 on a Bosch refrigerator?
Repair costs depend on which component is at fault. Replacing just the crusher solenoid is generally the less expensive option, with parts typically ranging from around $20 to $60 depending on the model. If the full ice maker assembly requires replacement, parts costs can range from $80 to $250 or more. Adding professional labor charges will increase the total cost of either repair.
Will resetting my Bosch refrigerator clear the 3-2-9 error code?
A power reset may temporarily clear the error code from the display, but the fault will return if the underlying problem with the crusher solenoid or wiring has not been corrected. Resetting alone does not fix a failed solenoid coil or damaged wiring harness. The code should be treated as a diagnostic indicator that requires proper component testing and repair rather than a simple reset.

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