E17
Telefunken
Control Panel Input Processing Fault
Microwave shows E17 and the clock or timer cannot be set; buttons may beep but values do not change.
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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
Corrupted control board firmware, Faulty encoder or selector knob (if present), Stuck keypad lines on PCB, Liquid damage to control board
How to Fix / Troubleshooting
Safety first: Unplug the microwave.
- Power cycle: Unplug for 10 minutes, then plug back in and attempt to set the clock again.
- Clean around buttons/knob: If your Telefunken microwave has a rotary knob, remove the knob and clean the shaft area. For keypads, ensure no buttons are physically stuck.
- Inspect control board: Remove the control panel and check for signs of moisture or corrosion. Dry gently and clean with isopropyl alcohol if minor.
- Replace control PCB or encoder: If the issue persists, replace the selector encoder or the entire control board as appropriate.
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Repair Difficulty
Medium
3/5
Required Part
Control Panel PCB
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