North Star
Keypad / User Interface Failure
Buttons on control panel do not respond or respond intermittently
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Possible Causes
Worn keypad membrane, Contamination under buttons, Loose ribbon cable, Control board input failure
How to Fix / Troubleshooting
Safety: Unplug the softener before servicing the control panel.
- 1. Clean surface: Wipe the keypad with a slightly damp cloth to remove grime. Do not allow water to enter the control.
- 2. Reseat ribbon cable: Remove the control cover and carefully reseat the keypad ribbon cable on the control board.
- 3. Test each button: With power restored, test all buttons. If some remain unresponsive, the keypad membrane is likely failing.
- 4. Replace keypad/control: Replace the keypad membrane or the entire electronic control board assembly if they are integrated.
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Repair Difficulty
Easy
2/5
Required Part
Keypad Membrane
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