Miele Freezer Error Code 1-3-1

Error code 1-3-1 on a Miele freezer signals a fault with the sensor inside the icemaker unit. The sensor monitors conditions during the ice-making cycle, and when the control board cannot read a valid signal from it, this code is triggered. The icemaker will stop producing ice, but the freezer compartment should continue cooling normally. Because the sensor is integrated into the icemaker assembly, it cannot be replaced independently.

No. The icemaker sensor on Miele freezers displaying this code is integrated directly into the icemaker assembly and is not a separately replaceable component. The only supported repair when the fault persists after a power cycle is to replace the complete icemaker unit. Attempting to service the sensor individually is not a supported repair path.

Because the repair requires replacing the full icemaker assembly, costs will include both the part and labor. Icemaker assemblies for Miele appliances typically range from a few hundred dollars on the lower end depending on the specific model. Labor from a qualified technician will add to the total, so expect the full repair to fall somewhere between a moderate and significant service cost. Getting a quote from a Miele-authorized service provider before proceeding is recommended.

Switching the freezer off and back on is always the correct first step, as a transient electrical glitch can cause a false 1-3-1 fault that clears with a simple power cycle. If the code reappears after the reset, the icemaker assembly has a genuine hardware failure and the reset will not provide a lasting fix. In that case, the icemaker unit must be replaced.

The freezer compartment itself should continue to maintain its set temperature even with the 1-3-1 fault active. The risk is limited to the icemaker function, which will not operate correctly during this fault. It is generally safe to continue using the freezer for food storage, but ice production will be unavailable until the icemaker assembly is replaced.