Tristar
Keypad Membrane Wear / Control Panel Failure
Buttons on the control panel are unresponsive or require very hard presses.
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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 keypad membrane contacts, Moisture ingress under control panel, Loose ribbon cable to PCB, Cracked control panel PCB
How to Fix / Troubleshooting
Safety first: Unplug the cooker before accessing the control panel.
- Dry the panel: If the panel appears foggy or damp, allow the cooker to dry in a warm, dry place for 24 hours.
- Clean surface: Wipe the panel with a soft, dry cloth. Do not use excessive water or solvents.
- Inspect ribbon cable (if accessible): Remove the top cover or panel and ensure the keypad ribbon cable is firmly seated in the PCB connector.
- Test individual buttons: If only some buttons fail, the membrane is likely worn and should be replaced.
Replacing the keypad membrane or control panel assembly is usually required for persistent button issues and may be best done by a technician.
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Repair Difficulty
Medium
3/5
Required Part
Control Panel / Keypad Membrane
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