Tristar
Unresponsive Touch Control Panel
Unit powers on but buttons do not respond or respond 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
Contaminated touch surface with grease or moisture, Loose ribbon cable to control PCB, Failed touch sensor panel, Faulty main control PCB interface
How to Fix / Troubleshooting
Safety: Unplug the air fryer before cleaning or opening the control panel.
- Clean the panel:
- Wipe the touch surface with a slightly damp cloth and mild detergent to remove grease.
- Dry thoroughly with a soft cloth.
- Power reset: Leave unplugged for 10 minutes, then reconnect and test.
- Check for moisture ingress: If the panel was exposed to steam or spills, allow it to dry for several hours in a warm, dry area before retesting.
- Inspect connections (advanced):
- Remove the top/control housing.
- Reseat the ribbon cable between the touch panel and main PCB.
- Replace parts: If buttons remain unresponsive, replace the touch control panel assembly. If that fails, replace the main control PCB.
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Repair Difficulty
Medium
3/5
Required Part
Touch Control Panel Assembly
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