F15
Miele
Mode Selection Logic Fault
Vacuum runs only in one power mode, F15 appears when trying to change suction level
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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
Defective mode selector switch, Damaged ribbon cable between buttons and PCB, Faulty control firmware, Contamination under keypad
How to Fix / Troubleshooting
Safety first: Remove the battery before cleaning or inspecting the controls.
- 1. Clean around the mode selector: Wipe the area with a slightly damp cloth and then dry. Avoid letting moisture enter the button gaps.
- 2. Exercise the button: Press the mode selector repeatedly to free any minor sticking. Do not use excessive force.
- 3. Power cycle: Remove the battery for 5 minutes, then reinsert and test.
- 4. Check behavior in handheld vs. full configuration: If the issue only occurs with certain attachments, note this for the technician.
- 5. If F15 remains: The mode selector or control PCB is likely faulty and should be replaced by a Miele technician.
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Repair Difficulty
Hard
4/5
Required Part
Mode Selector Switch
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