Miele Dishwasher Error Code F46: How to Fix It

Medium 30-60 minutes Medium Severity Verified June 2026
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Error Code
F46
Brand
Miele
Product Type
appliance
Severity
Medium
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Error code F46 on your Miele dishwasher indicates a fault with the EcoFeedback sensor, which measures water and energy consumption. This error can cause the dishwasher to stop mid-cycle or not start at all. In most cases, the sensor can be reset or cleaned without replacing any parts.
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Tools You'll Need

How to Fix Error Code F46

  1. Unplug the Dishwasher and Wait

    Always unplug or power off before accessing internal components.

  2. Check for Error History Reset

  3. Inspect the EcoFeedback Sensor

    Double-check that the dishwasher is unplugged before handling any electrical parts.

  4. Clean the Sensor

    Do not use abrasive cleaners or submerge the sensor in water.

  5. Test with a Multimeter

    Make sure the dishwasher is unplugged and the sensor is disconnected from the wiring harness.

  6. Replace the Sensor

    Ensure the new sensor is compatible with your Miele dishwasher model.

Parts You May Need

EcoFeedback sensor (thermistor/flow sensor)
Check Price on Amazon
EcoFeedback sensor (thermistor/flow sensor)
Check Price on Amazon
EcoFeedback sensor (thermistor/flow sensor)
Check Price on Amazon
EcoFeedback sensor (thermistor/flow sensor)
Check Price on Amazon
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When to Call a Professional

If you have no experience with electrical testing, or if the error persists after replacing the sensor, contact a Miele-certified technician. There may be a wiring issue or control board fault that requires professional diagnosis.

Frequently Asked Questions

What does error code F46 mean on a Miele dishwasher?
Error F46 indicates a fault with the EcoFeedback sensor, which monitors water and energy usage. The sensor may be dirty, faulty, or have a loose connection.
Can I reset Miele dishwasher error F46?
Yes, unplug the dishwasher for 10-15 minutes to reset the electronics. If the error returns, further troubleshooting is needed.
How much does it cost to fix F46 on a Miele dishwasher?
If you DIY, a replacement sensor costs around $30-$60. If you hire a professional, expect $150-$300 for labor and parts.
Where is the EcoFeedback sensor on a Miele dishwasher?
It's located in the lower front area, near the water inlet valve, behind the lower panel. It's a small cylindrical component with wires.
Is error F46 serious?
It's a medium-severity error. The dishwasher may stop working, but it's usually fixable without major repairs. Ignoring it can lead to inefficient cycles.

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