Miele Freezer Error Code 5-5-1

Error code 5-5-1 indicates that the icemaker's water tank temperature sensor has been detected as faulty by the control system. The appliance cannot read a valid signal from this sensor, which causes the icemaker to stop functioning normally. The freezer's primary cooling function is generally not affected by this fault. Diagnosis begins with testing the temperature sensor, followed by inspection of the door electronics module if the sensor is found to be working correctly.

Yes, the freezer compartment should continue to maintain safe temperatures for food storage since this fault is isolated to the icemaker subsystem. The icemaker may stop producing ice until the fault is resolved, but the core refrigeration function is not typically compromised. If you notice temperature fluctuations in the freezer itself alongside this code, additional faults may be present and a technician should inspect the unit promptly.

A reset may temporarily clear the fault code from the display, but if the underlying hardware problem, whether a failed sensor, damaged wiring, or faulty door electronics, has not been addressed, the code will return. Resetting is not a substitute for diagnosis and repair. It can be useful as a first step to confirm whether the fault is intermittent or persistent, but the root cause must be corrected for the icemaker to function reliably.

Some basic checks, such as inspecting the sensor connector for corrosion or loose pins, are accessible to a knowledgeable DIYer. However, properly testing the temperature sensor requires a multimeter and familiarity with reading resistance values. Replacing the door electronics module is a more involved repair and is generally better suited to a qualified appliance technician.

Repair costs vary depending on which component is at fault. Replacing a water tank temperature sensor typically falls in the range of $50 to $150 for the part, plus labor. If the door electronics module requires replacement, parts alone can range from $150 to $400 or more, depending on availability. Labor costs will vary by region and technician.