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Error code reference

Bosch Refrigerator Error Code 3-3-6

Ice maker

Ice maker: Crusher motor faulty.

First step from the service manual

Check crusher motor; if problematic replace motor; 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 3-3-6 means on a Bosch refrigerator

Error code 3-3-6 on a Bosch refrigerator indicates a fault in the ice maker's crusher motor. The crusher motor is the component responsible for breaking whole ice cubes into crushed ice before dispensing. When the control board detects that the crusher motor is not operating within expected parameters, either failing to start, stalling under load, or drawing incorrect current, it logs this fault code and typically disables the ice dispenser function to prevent further damage.

The diagnostic approach follows a clear sequence: inspect the crusher motor itself first, then determine whether the motor or the entire ice maker assembly needs replacement. A faulty crusher motor can result from bearing wear that causes the motor to seize or run with excessive resistance, winding failures that prevent the motor from developing adequate torque, or a damaged drive mechanism that places too much load on the motor. In some cases, ice jams or foreign material in the crusher mechanism can stress the motor enough to trigger the fault without the motor itself being permanently damaged.

Because the crusher motor is integrated into the ice maker assembly on many Bosch models, a technician must evaluate whether the motor can be replaced independently or whether the full ice maker unit must be substituted. If the motor tests within acceptable operating parameters, the fault may originate from the ice maker control board or wiring harness rather than the motor itself, which is why the diagnostic step directs replacement of the ice maker assembly as a secondary action.

Source: manufacturer service documentation.

Common causes of 3-3-6

  1. 01

    Worn or seized crusher motor

    Part replacement

    Over time, the crusher motor bearings can wear out or seize, preventing the motor from spinning freely. This is the most common root cause and is identified by testing motor rotation and checking for unusual resistance or heat.

  2. 02

    Ice jam in the crusher mechanism

    Wiring / connection

    A buildup of ice or a lodged piece of ice in the crusher pathway can stall the motor and trigger the fault. Inspect the crusher area for blockages and clear any obstructions before assuming the motor has failed.

  3. 03

    Failed motor windings

    Part replacement

    An internal winding failure in the crusher motor can cause it to draw incorrect current or fail to generate torque. This is confirmed by testing the motor windings for continuity and proper resistance values.

  4. 04

    Damaged wiring harness or connector

    Wiring / connection

    Loose, corroded, or broken wiring between the control board and the crusher motor can interrupt power or signal delivery, causing the board to register a motor fault. Visually inspect connectors and test for continuity in the harness.

  5. 05

    Defective ice maker assembly

    Part replacement

    If the crusher motor tests normal but the fault persists, the ice maker assembly's internal control circuitry may be at fault. In this case, replacing the full ice maker assembly is the indicated next step.

See the test procedure for each cause

Frequently asked questions about 3-3-6

What does 3-3-6 mean on a Bosch refrigerator?
Error code 3-3-6 on a Bosch refrigerator indicates that the ice maker's crusher motor has been detected as faulty. The crusher motor is responsible for breaking ice cubes into crushed ice before dispensing. The refrigerator's control system has determined the motor is not operating correctly, so it logs this code and typically disables the crushed ice function. Other refrigerator operations are generally not affected.
Can I fix error code 3-3-6 myself?
Some basic checks are within reach of a confident DIYer, such as inspecting the crusher area for an ice jam and clearing any blockage. However, testing the motor's electrical properties and replacing the crusher motor or ice maker assembly requires disassembly of the ice maker unit and some familiarity with appliance wiring. If you are not comfortable with those steps, a qualified appliance technician is recommended.
Is it safe to keep using my refrigerator with a 3-3-6 error?
Yes, the refrigerator's cooling and freezing functions are not compromised by this error. The 3-3-6 code is specific to the crusher motor in the ice maker, so food safety is not at risk. You should avoid repeatedly attempting to dispense crushed ice, as doing so while the motor is faulty could cause additional wear to the mechanism.
How much does it cost to repair a 3-3-6 error on a Bosch refrigerator?
Repair costs vary depending on whether only the crusher motor or the full ice maker assembly needs replacement, as well as local labor rates. Parts alone can range from roughly $50 to $250 or more depending on the specific assembly required. Adding professional labor, total repair costs typically fall in the range of $150 to $400. Getting a diagnostic estimate from a technician before authorizing repairs is always advisable.
Will resetting my Bosch refrigerator clear the 3-3-6 error?
A power reset may temporarily clear the error code from the display, but if the crusher motor is genuinely faulty, the code will return once the refrigerator attempts to use the crusher again. Resetting without addressing the underlying motor or ice maker issue is not a permanent solution. The fault must be resolved by inspecting and replacing the defective component.

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