Miele Oven Error Code F193

F193 on a Miele oven means the bottom heat Pt1000 temperature sensor (R30/22) or its wiring harness has a short circuit. The Pt1000 sensor monitors the temperature of the bottom heating zone, and a short causes the resistance in the circuit to drop to an abnormally low level. The oven control board detects this invalid reading and triggers the fault to prevent uncontrolled heating. The oven will not operate normally until the fault is resolved.

No, you should not continue using the oven with an active F193 fault. The error indicates a short circuit in the bottom heat temperature sensor circuit, which means the oven cannot accurately monitor or regulate heat in the bottom zone. Operating the oven in this condition risks uncontrolled temperatures, potential damage to the appliance, and a possible fire or burn hazard. Disconnect the oven from power and have it inspected before resuming use.

Repair costs vary depending on whether the problem is a damaged wiring harness, a faulty Pt1000 sensor, or a combination of both. Parts costs for a Miele Pt1000 sensor or harness assembly typically range from around 40 to 150 dollars depending on the specific model. Adding professional labor, total repair costs generally fall in the range of 150 to 400 dollars or more depending on your location and the extent of the damage found during diagnosis.

A knowledgeable DIYer can begin by visually inspecting the wiring harness connected to the bottom heat sensor for obvious damage such as melted insulation or pinched wires. Testing the Pt1000 sensor with a multimeter is also within reach if you are comfortable working inside the oven cavity after disconnecting power. However, if the harness or sensor needs replacement, sourcing the correct Miele components and reassembling properly can be complex, so a qualified technician is recommended if you are unsure.

A power reset may temporarily clear the F193 code from the display, but the fault will return as soon as the oven attempts to read the bottom heat sensor and detects the short circuit again. The underlying electrical fault in the sensor or wiring harness must be physically repaired before the code will stay clear. Repeatedly resetting without fixing the root cause does not resolve the issue.