Summit
Keypad / Touch Control Failure
Display works but buttons do not respond or respond intermittently.
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Possible Causes
Worn or damaged keypad, Moisture under control overlay, Loose ribbon cable, Failed user interface board
How to Fix / Troubleshooting
Safety: Unplug the unit before removing the control panel.
Inspect connections:
- Remove the control panel and check the ribbon cable between the keypad and control board.
- Clean any corrosion on connectors and reseat firmly.
Dry moisture:
- If moisture is present under the overlay, allow the panel to dry completely.
Replace if needed:
- If specific buttons never work, replace the user interface / keypad assembly.
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Repair Difficulty
Easy
2/5
Required Part
User Interface Board
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