Miele
Extended Cycle Due to Heating or Sensor Issues
Dishwasher takes much longer than the displayed program time to finish.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Insufficient water heating, Temperature sensor drift, Heavy soil detection causing extra rinses, Low inlet water temperature
How to Fix / Troubleshooting
Safety: Unplug before accessing internal components; basic checks can be done with power on.
- Check inlet temperature: If connected to cold water, expect longer cycles. Consider connecting to hot water within Miele's specified temperature range.
- Clean sensors: Clean filters and run a hot maintenance cycle with cleaner to remove grease from sensors and hydraulic system.
- Observe heating: During wash, open the door briefly to feel if water is hot. If not, suspect heater or NTC issues.
- Service if needed: If water never heats and cycles are extremely long, test and replace the heater or NTC sensor as required.
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Repair Difficulty
Medium
3/5
Required Part
Circulation Heater / NTC Sensor
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