Miele M 6260 TC Oven Fan Stuck After Temperature Spike

The Miele M 6260 TC is a high‑performance oven that many people rely on for baking and roasting. When the built‑in fan locks up after a sudden temperature rise, it can leave you with a stuck appliance that refuses to heat properly. Understanding the root cause, diagnosing the problem, and carrying out the correct repairs can save you the expense of a replacement and restore your oven to full function.

Why the Fan Might Stuck After a Temperature Spike

A temperature spike is a sudden increase in the internal heat that can occur during a long cooking cycle or if the oven’s thermostat fails to regulate the temperature properly. When this happens the fan can become overloaded and fail to turn. The most common causes are:

• Overheating of the motor or fan shaft
• Contamination of the fan blades with food residue or grease
• Failure of the temperature sensor that controls fan operation
• A malfunctioning control board or fuse
• A mechanical fault in the motor or its bearings

Each of these scenarios requires a different approach to repair, so it is essential to determine which one applies before moving forward.

Safety First

Before you begin any investigation, keep these precautions in mind:

• Turn off the oven at the mains power switch or circuit breaker.
• Wait at least 30 minutes after the oven was last used.
• Use insulated gloves if you need to touch components that might still be warm.
• If you are not comfortable with electrical work, contact a professional.

Failing to follow these safety steps can result in electric shock or burns.

Visual Inspection

The first step is a quick visual check. Open the oven door and locate the fan. It is usually positioned near the back of the interior cavity, just above the heating element. Look for obvious signs of damage:

1. Fan blades – Are they bent, cracked, or missing any pieces?
2. Motor housing – Is there any scorch mark or discoloration that indicates overheating?
3. Dust or debris – A build‑up of grease or food particles can prevent the fan from spinning.

If you see any obvious damage, that is a good indication that a component will need replacement. If the fan looks intact, move on to the next stage.

Check the Temperature Sensor

The M 6260 TC uses a temperature sensor (thermistor) to detect heat levels and activate the fan when necessary. A defective sensor can send incorrect signals, causing the fan to turn on at inappropriate times or remain engaged.

1. Locate the sensor – It is typically near the heating element or inside the oven cavity, attached to a metal bracket.
2. Test continuity – With a multimeter set to the ohmmeter function, disconnect the sensor from the control board. A working thermistor should show a measurable resistance that changes with temperature.
3. Compare values – Refer to the manufacturer’s data sheet for the expected resistance at room temperature. If your reading is far off, the sensor is faulty.

If the sensor is bad, replace it with a new part that matches the specifications.

Verify the Control Board and Fuses

A failure in the control board can prevent the fan from receiving the correct command to start or stop. In some models, the fan is also protected by a dedicated fuse that blinks when it overheats.

1. Open the front panel – Carefully remove the screws that hold the faceplate.
2. Locate the fuse – This is usually a small cylindrical component labeled “F2” or similar.
3. Test the fuse – Use a multimeter or simply press the fuse against a metal surface; if the circuit does not complete, it is blown. Replace it with a fuse of the same rating.
4. Inspect the board – Look for burn marks, cracked solder joints, or bulging capacitors.

If any of these signs are present, you may need a new control board or to replace the damaged components. In many cases, a simple fuse replacement will restore normal operation.

Motor and Bearing Check

The motor that drives the fan can fail mechanically. Overheating can damage the bearings, causing the motor shaft to seize.

1. Remove the fan – Unscrew the motor housing carefully, taking note of the wiring harness.
2. Spin the shaft by hand – It should move freely without resistance. If you feel any grinding or stiffness, the bearings are likely worn out.
3. Inspect the motor coil – Look for scorch marks or a burnt smell. If the coil is damaged, the motor will not function.

Replacement of a motor is a more advanced task and may be easier to handle by a professional if you are not experienced with small motors.

Cleaning the Fan

Even if the motor and sensor are fine, a buildup of grease or debris can keep the fan from turning. Follow these steps for a thorough clean:

1. Disconnect the power – Ensure the appliance is off at the mains.
2. Remove the fan – Detach the wiring and unbolt the motor housing.
3. Clean the blades – Use warm soapy water or a mild degreaser. A soft brush will get rid of stuck particles.
4. Dry thoroughly – Let all parts dry completely before reassembly.
5. Reattach – Screw the housing back, reconnect the wiring, and close the front panel.

A clean fan can often be restored to normal operation after a temperature spike.

Recalibrating the Fan Timer

Some ovens allow the fan to run for a set period after the heating cycle ends. If this timer is misadjusted, the fan might start and then get stuck.

1. Access the calibration menu – This is usually done by holding a specific button combination on the control panel.
2. Reset to factory defaults – Enter the correct password if prompted.
3. Verify the new setting – The fan should now only run for the intended duration.

If you are unsure how to perform this calibration, refer to the user manual or contact Miele support for detailed instructions.

Replacing the Fan Assembly

When all diagnostic tests point to a damaged fan or motor, you must replace the entire assembly. Follow these general steps:

1. Order the correct part – Identify the part number from the user manual or the Miele website.
2. Prepare the workspace – Lay down a towel or soft mat to prevent scratches.
3. Disconnect the power – As always, safety first.
4. Remove the old assembly – Unscrew all mounting screws, detach the wiring harness, and take the fan out.
5. Install the new assembly – Position it correctly, secure it with screws, and reconnect the wiring.
6. Test the operation – Turn on the oven and watch the fan start and stop as it should.

A properly installed fan will resolve most sticking problems caused by a temperature spike.

When to Call a Professional

Even with a thorough guide, some issues remain beyond the scope of a typical homeowner:

• Complex wiring issues or problems with the control board that require advanced diagnostic tools.
• Replacement of the internal motor that is sealed within the housing.
• Persistent overheating that may indicate a deeper fault in the heating element or thermostat.

If you are unable to determine the root cause or if the oven still misbehaves after following the steps above, contact a licensed appliance repair technician.

Preventing Future Fan Sticking

Regular maintenance can keep the fan running smoothly and avoid the frustration of a stuck motor.

• Clean the oven regularly – This removes grease that can accumulate on the fan blades.
• Check the temperature sensor – Test it annually with a multimeter to confirm proper resistance readings.
• Inspect the fuse – Replace it if it shows signs of wear or if it blows during normal use.
• Avoid over‑cooking – High temperatures for extended periods can overstress the fan motor.

By staying proactive, you can extend the life of your M 6260 TC and reduce the likelihood of encountering a stuck fan after a temperature spike.

Summary

A stuck fan in the M 6260 TC after a temperature spike is usually a symptom of either overheating, contamination, sensor failure, or a mechanical fault. By following a systematic diagnostic approach—starting with a visual inspection, checking the temperature sensor, verifying the control board and fuse, cleaning the fan, and, if necessary, replacing the motor or fan assembly—you can often restore the oven to reliable operation. Always observe safety precautions and know when to enlist professional help. With regular maintenance and timely intervention, your Miele oven will continue to deliver excellent results for years to come.