H.Koenig Keypad / Touch Control Failure

Buttons on the control panel are unresponsive or work intermittently.

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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

Worn mechanical switches, Moisture under touch panel, Loose keypad ribbon cable, Faulty keypad PCB

How to Fix / Troubleshooting

Safety first: Unplug the unit before working on the control panel.

  • 1. Clean surface: Wipe the control panel dry and remove any sticky residue.
  • 2. Access keypad board: Remove the front/top cover and locate the keypad PCB. Reseat the ribbon cable to the main board.
  • 3. Inspect for moisture: If condensation is present, dry the area thoroughly and allow the board to air-dry for several hours.
  • 4. Test switches: For mechanical buttons, test continuity with a multimeter when pressed. Replace the keypad board if switches are faulty.

Warning: Do not spray cleaners directly onto the control panel; apply to a cloth first.

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Repair Difficulty

Medium 3/5

Required Part

Control Panel / Keypad Board
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