Miele Oven Error Code F260

F260 on a Miele oven indicates that the control system has detected an abnormal temperature difference in the cavity temperature sensor. The oven monitors the sensor's output continuously and triggers this code when the readings fall outside acceptable parameters. The issue points to a fault in the sensor itself, the wiring connected to it, or in rare cases the control board.

It is not advisable to continue using the oven while F260 is active. Because the cavity temperature sensor provides the data the oven uses to regulate heat, a faulty sensor means the oven cannot accurately control its temperature. This could result in overheating or insufficient heating, creating both a food safety risk and a potential safety hazard.

Repair costs vary depending on which component has failed and local labor rates. A replacement cavity temperature sensor typically costs in the range of $30 to $100 for the part, while a wiring harness repair or replacement can add additional cost. If a technician is required, total repair costs including labor generally range from $150 to $400 or more depending on the complexity of the repair.

A knowledgeable DIYer can perform basic diagnostics such as visually inspecting the sensor and wiring, reseating connectors, and testing sensor resistance with a multimeter. However, replacing the cavity temperature sensor or wiring harness requires comfort with disassembling the oven interior and working with electrical components. If you are not confident with these steps, a qualified appliance technician is recommended.

A power reset by unplugging the oven or turning off the circuit breaker for a few minutes may temporarily clear the display, but the code will return if the underlying fault is still present. The sensor or wiring issue must be diagnosed and repaired to permanently resolve F260.