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Error code reference

Thermador Refrigerator Error Code 3-3-2

Icemaker

Thermador codesThermador refrigerator codes

Icemaker: Internal ice maker fault.

First step from the service manual

Switch the appliance off and on; if fault code reappears, replace the ice maker.

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

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  • Wiring diagram references and connector pinouts from the OEM service manual
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What 3-3-2 means on a Thermador refrigerator

Error code 3-3-2 on a Thermador refrigerator indicates an internal ice maker fault. This code points to a failure within the ice maker unit itself, meaning the control system has detected an abnormal condition in the ice maker's internal components or circuitry. The fault is distinct from external factors like water supply or inlet valve issues, as it originates from within the ice maker assembly, which includes the ice maker module, motor, thermostat, and associated internal wiring.

The most likely cause of a 3-3-2 fault is a failure in the ice maker's internal control module or motor assembly. Over time, the ice maker module can develop faults due to repeated thermal cycling, moisture intrusion, or component wear. When the refrigerator's main control board receives an error signal from the ice maker that cannot be resolved through normal operation, it logs this fault code to alert the technician that the ice maker itself requires attention.

The diagnostic approach for this fault is straightforward: perform a power cycle by switching the appliance off and then back on. This clears any temporary control logic errors that may have triggered the fault. If code 3-3-2 returns after the power cycle, the ice maker unit is considered faulty and should be replaced as a complete assembly. Component-level repair of the internal ice maker module is generally not practical given the integrated nature of modern ice maker assemblies.

Source: manufacturer service documentation.

Common causes of 3-3-2

  1. 01

    Failed ice maker control module

    Part replacement

    The internal control module within the ice maker assembly can fail due to age, moisture exposure, or electrical wear. This is the most frequent source of an internal fault code like 3-3-2, and it typically requires replacing the entire ice maker unit.

  2. 02

    Ice maker motor failure

    Part replacement

    The motor that drives the ice ejector arms or harvest cycle can seize or burn out internally. A seized or failed motor will cause the ice maker to report an internal fault to the main control board.

  3. 03

    Internal wiring or connector fault within the ice maker

    Wiring / connection

    Loose, corroded, or damaged connectors inside the ice maker assembly can interrupt the signal between internal components and trigger this fault. Inspect the ice maker's internal harness connections before committing to full replacement.

  4. 04

    Temporary control logic error

    Wiring / connection

    In some cases, a brief power fluctuation or software glitch can cause the refrigerator to log a false fault code. A power cycle can resolve this, and if the code does not return, no parts replacement is needed.

  5. 05

    Ice maker thermostat or thermal sensor failure

    Part replacement

    An internal thermostat or sensor within the ice maker that monitors temperature during the harvest cycle can fail, causing the module to report an internal fault. This component is typically integrated into the ice maker assembly.

See the test procedure for each cause

Frequently asked questions about 3-3-2

What does 3-3-2 mean on a Thermador refrigerator?
Error code 3-3-2 on a Thermador refrigerator indicates an internal ice maker fault. The refrigerator's control system has detected a failure originating within the ice maker unit itself. This is separate from water supply or ice maker sensor issues located outside the assembly. If a power cycle does not clear the code, the ice maker unit requires replacement.
Can I fix a Thermador 3-3-2 error code myself?
The first step you can perform yourself is a power cycle: switch the refrigerator off, wait a few minutes, and turn it back on. If the 3-3-2 code disappears and does not return, no further action is needed. If the code comes back, the ice maker assembly will need to be replaced, which requires disconnecting power, removing the ice maker, and installing a compatible replacement unit. This is a moderate-difficulty repair that a confident DIYer or appliance technician can complete.
Will resetting the refrigerator clear the 3-3-2 error code?
A reset, or power cycle, is the recommended first diagnostic step for the 3-3-2 fault code. Turn the refrigerator off, allow it to sit without power for a few minutes, and then turn it back on. If the fault was caused by a temporary control logic error, the code will clear and not return. If the code reappears after the reset, the ice maker has a genuine internal fault and must be replaced.
Is a 3-3-2 error on a Thermador refrigerator a safety concern?
The 3-3-2 error code relates specifically to an internal ice maker fault and does not indicate a hazardous condition involving the refrigeration system, electrical system, or food safety. Your refrigerator's cooling functions should continue to operate normally. The primary consequence is that the ice maker will not produce ice until the fault is resolved.
How much does it cost to fix a Thermador 3-3-2 ice maker error?
If a power cycle resolves the fault, there is no parts cost involved. If the ice maker assembly requires replacement, part costs for a Thermador ice maker unit typically range from roughly $150 to $400 depending on the specific model. Adding professional labor for diagnosis and installation, the total repair cost generally falls in the range of $250 to $600 or more depending on your location and service provider.

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