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Error code reference

Bosch Refrigerator Error Code 3-3-9

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 3-3-9 means on a Bosch refrigerator

The Bosch refrigerator error code 3-3-9 indicates a fault detected in the ice maker's crusher solenoid. The crusher solenoid is an electromechanical valve or actuator responsible for engaging the ice crushing mechanism, which allows the ice maker to dispense either crushed or cubed ice depending on the user's selection. When the refrigerator's control board detects that the solenoid is not responding correctly, drawing incorrect current, or failing to actuate within expected parameters, it logs this fault code and may disable ice dispensing functions to prevent further damage.

The most likely causes of this error fall into two categories: a failed solenoid coil or a broader ice maker assembly fault. A solenoid coil can fail due to an open circuit (broken winding), a short circuit, or corrosion on the electrical connector pins that disrupts the signal from the control board. In some cases, the wiring harness between the board and solenoid can develop a break or intermittent connection, triggering the fault even when the solenoid itself is intact.

Diagnosis begins by inspecting and testing the crusher solenoid directly. If the solenoid checks out as functional, the ice maker assembly as a whole is likely at fault and should be replaced. This two-step approach helps avoid unnecessary part replacement and focuses the repair on the most probable failure point first.

Source: manufacturer service documentation.

Common causes of 3-3-9

  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. Testing the solenoid for proper resistance and continuity will confirm this failure.

  2. 02

    Corroded or loose solenoid connector

    Wiring / connection

    Moisture in the freezer compartment can cause corrosion on the solenoid's electrical connector pins, interrupting the signal. Inspect the connector for discoloration, buildup, or a poor seating fit.

  3. 03

    Damaged wiring harness to solenoid

    Part replacement

    The wiring between the control board and the crusher solenoid can develop a break or short, causing a false fault reading. A visual inspection and continuity test of the harness will identify this issue.

  4. 04

    Faulty ice maker assembly

    Part replacement

    If the solenoid and wiring test as functional, the fault may originate within the ice maker assembly's internal components. In this case, replacing the entire ice maker assembly is the recommended resolution.

See the test procedure for each cause

Frequently asked questions about 3-3-9

What does 3-3-9 mean on a Bosch refrigerator?
Error code 3-3-9 on a Bosch refrigerator signals a fault with the ice maker's crusher solenoid. The crusher solenoid controls the mechanism that switches between crushed and cubed ice dispensing. The control board detected that the solenoid is not operating correctly, which may disable ice crushing functionality until the issue is resolved.
Can I fix error code 3-3-9 myself?
A knowledgeable DIYer can start by inspecting the crusher solenoid's wiring connector for corrosion or a loose connection, which sometimes resolves the fault without replacing any parts. If the connector looks fine, testing the solenoid for continuity with a multimeter is the next step. If the solenoid is faulty, replacing it or the full ice maker assembly is required, and comfort with appliance disassembly is needed for that repair.
Is it safe to keep using my refrigerator with error code 3-3-9?
The refrigerator's cooling and food preservation functions are generally not affected by this fault, as it is isolated to the ice crushing mechanism. You can continue using the refrigerator for food storage, but ice dispensing in crushed mode may not work correctly. It is still a good idea to schedule a repair promptly to prevent any related wiring issues from worsening.
How much does it cost to repair error code 3-3-9 on a Bosch refrigerator?
Repair costs vary depending on whether the fix requires a solenoid component only, a full ice maker assembly replacement, or just a connector cleaning. Parts alone can range from roughly $20 to $150 or more depending on the specific component needed. Adding professional labor typically brings the total repair cost into the $100 to $350 range.
Will resetting my Bosch refrigerator clear error code 3-3-9?
A power reset may temporarily clear the error code from the display, but if the underlying solenoid fault is still present, the code will return once the refrigerator runs through its diagnostics again. Resetting is useful for confirming whether the fault is intermittent, but it does not repair the solenoid or wiring. A physical inspection and component testing are necessary to permanently resolve the error.

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