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Error code reference

Bosch Refrigerator Error Code 3-3-2

Ice maker

Bosch codesBosch refrigerator codes

Ice maker: Internal ice maker fault.

First step from the service manual

Switch appliance off and on; if fault persists, replace ice maker.

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

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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What 3-3-2 means on a Bosch refrigerator

Error code 3-3-2 on a Bosch refrigerator indicates an internal ice maker fault. This code signals that the ice maker module itself has experienced a failure that the refrigerator's control system cannot attribute to an external sensor or wiring issue. The fault is isolated within the ice maker assembly, which includes the drive motor, harvest heater, thermostat, and internal control circuitry that governs the freeze and harvest cycles.

Internal ice maker faults typically occur when one or more of the components inside the ice maker unit fail in a way that disrupts the normal cycle sequence. The drive motor may seize or fail to rotate the ejector blades, the harvest heater may fail to energize and release the ice from the mold, or the internal thermostat controlling cycle initiation may malfunction. Because these components are integrated into a sealed assembly, diagnosing which sub-component has failed often requires replacement of the entire ice maker unit rather than individual component repair.

The recommended first diagnostic step is a power cycle: switching the refrigerator off and back on. This clears any transient control errors that may have triggered the fault incorrectly. If the 3-3-2 code returns after the power cycle, the ice maker assembly itself has a confirmed internal failure and requires replacement. Attempting to continue operating the refrigerator with this fault active will result in no ice production.

Source: manufacturer service documentation.

Common causes of 3-3-2

  1. 01

    Failed ice maker drive motor

    Part replacement

    The motor that rotates the ejector blades to push ice out of the mold may have seized or burned out. If the motor does not turn during the harvest cycle, the control board registers an internal fault.

  2. 02

    Defective harvest heater

    Part replacement

    The harvest heater inside the ice maker warms the mold to release ice cubes. If the heater element has failed open or shorted, the harvest cycle cannot complete and an internal fault is triggered.

  3. 03

    Internal ice maker thermostat failure

    Part replacement

    The thermostat inside the ice maker assembly monitors mold temperature to determine when to initiate a harvest cycle. A failed thermostat can prevent the cycle from starting or cause incorrect cycle timing, resulting in an internal fault code.

  4. 04

    Transient control board communication error

    Wiring / connection

    Occasionally a temporary voltage fluctuation or control glitch can cause a false internal fault code. This is identified by the fault clearing after a full power cycle with no recurrence.

  5. 05

    Ice maker control board failure

    Part replacement

    The small circuit board integrated into the ice maker module can fail due to age, moisture exposure, or electrical surges. A failed internal board produces an internal fault code that does not clear after a power cycle.

See the test procedure for each cause

Frequently asked questions about 3-3-2

What does 3-3-2 mean on a Bosch refrigerator?
Error code 3-3-2 indicates an internal ice maker fault. The refrigerator's control system has detected a failure within the ice maker assembly itself, such as a failed motor, harvest heater, or internal thermostat. This fault means the ice maker cannot complete its normal freeze and harvest cycle. Ice production will stop until the fault is resolved.
Will resetting my Bosch refrigerator clear the 3-3-2 error code?
A power cycle, switching the refrigerator off and back on, is the first recommended step and will clear the code if the fault was caused by a temporary control glitch. However, if the 3-3-2 code returns after the reset, the ice maker has a confirmed internal hardware failure and the reset will not provide a lasting fix. In that case, the ice maker assembly will need to be replaced.
How do I fix a 3-3-2 error on my Bosch refrigerator?
Start by turning the refrigerator off and back on to perform a power cycle. If the code clears and does not return, no further action is needed. If the 3-3-2 code comes back, the ice maker unit has an internal failure and should be replaced. Because the fault is inside the sealed assembly, replacing the entire ice maker module is the standard repair rather than attempting to service individual internal components.
Is it safe to keep using my Bosch refrigerator while the 3-3-2 code is active?
Yes, the 3-3-2 fault is specific to the ice maker and does not affect the refrigerator or freezer compartments. Your food will remain properly cooled and frozen while this code is active. The only impact is that the ice maker will not produce ice until the fault is corrected.
How much does it cost to fix a Bosch refrigerator 3-3-2 ice maker error?
Repair costs depend on whether the fix is a simple power cycle reset or a full ice maker replacement. If the ice maker assembly needs to be replaced, parts alone typically range from $80 to $250 depending on the specific Bosch model, with professional labor adding an additional $100 to $200 in most cases. Diagnosing the fault first with a power cycle costs nothing and may resolve the issue entirely.

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