Miele Washer Error Code F4047

F4047 means the resistance measured from the NTC 2 temperature sensor has exceeded the highest permissible value, which the control system treats as an open circuit. This indicates the sensor is either internally failed, disconnected, or has a wiring fault in its circuit. The machine cannot reliably monitor temperature without a valid NTC 2 signal, so it will restrict or stop operation until the fault is resolved.

It is not recommended to continue running the washer with F4047 active. The error indicates the machine cannot monitor temperature through the NTC 2 sensor, which means heating functions could operate without proper thermal feedback. Running the machine in this condition risks overheating the water or damaging internal components.

Repair costs depend on what component has failed. A replacement NTC thermistor is typically an inexpensive part, so parts plus labor for a sensor swap might range from around 100 to 250 dollars. If the control board is at fault, costs can rise significantly, often ranging from 300 to 600 dollars or more depending on parts availability and labor rates in your area.

Some aspects of this repair are within reach of a confident DIYer. You can visually inspect connectors, check for obvious wiring damage, and use a multimeter to test the NTC 2 sensor resistance and harness continuity. If the sensor has failed, replacing it requires disassembling part of the machine, which is more involved. Control board diagnosis and replacement should be left to a qualified technician.

A reset may temporarily clear the error code from the display, but the fault will return as soon as the control board samples the NTC 2 circuit again and detects the out-of-range resistance. The underlying hardware fault must be diagnosed and corrected for the error to clear permanently.