Thermador Refrigerator Error Code 3-1-2

Error code 3-1-2 on a Thermador refrigerator indicates that the icemaker motor has been detected as faulty. The control system monitors the icemaker drive motor during each harvest cycle and logs this code when the motor fails to operate correctly. The icemaker will stop producing ice when this fault is active. If a power cycle does not resolve it, the icemaker assembly requires replacement.

The icemaker motor on the affected Thermador units is not a separately replaceable component, meaning the entire icemaker assembly must be replaced to resolve this fault. A knowledgeable DIYer comfortable with appliance repair can perform this replacement by disconnecting the unit from power, removing the icemaker module, and installing a compatible replacement assembly. Before replacing parts, verify the wiring harness connector at the icemaker is secure and free of corrosion.

Repair costs for the 3-1-2 fault vary depending on whether the fix requires only a power cycle or a full icemaker assembly replacement. If a replacement icemaker module is needed, parts typically range from around 100 dollars to over 300 dollars depending on the specific model, with additional labor costs if a technician performs the repair. Getting a quote from a certified Thermador service provider before proceeding is advisable.

A power cycle, turning the appliance off and then back on, is the recommended first step for error code 3-1-2. If the fault was caused by a transient motor stall or brief electrical glitch, the code may clear and normal icemaker function may resume. However, if the motor has a permanent internal failure, the code will return after the reset and the icemaker unit will need to be replaced.

The 3-1-2 fault is isolated to the icemaker motor circuit and does not affect the refrigerator or freezer cooling functions. Your food will remain safely refrigerated while this code is present. The only impact is that the icemaker will not produce ice until the fault is resolved.