Princess Keypad / Touch Button Failure

Buttons on the control panel are unresponsive or trigger the wrong function.

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Possible Causes

Worn tactile switches, Moisture under keypad, Damaged touch sensor IC, Loose ribbon cable

How to Fix / Troubleshooting

Safety: Disconnect power before working on the control panel.

Steps:

  • 1. Dry the panel: If recently cleaned with liquid, allow the panel to dry completely.
  • 2. Reseat cable: Open the control housing and reseat the ribbon cable between the keypad and main PCB.
  • 3. Inspect for damage: Look for cracked buttons or corrosion. Replace the control panel PCB if individual buttons fail consistently.
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Repair Difficulty

Easy 2/5

Required Part

Control Panel PCB
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