Crux
Partial Keypad / Touch Panel Failure
Display works but temperature or time cannot be adjusted; some buttons do nothing.
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Possible Causes
Damaged touch sensor traces, Loose ribbon cable, Cracked control PCB, Liquid ingress on control panel
How to Fix / Troubleshooting
Safety first: Unplug before opening the control panel.
- Clean surface: Wipe the control panel with a dry cloth to remove moisture or residue.
- Reset control: Unplug for 10 minutes, then reconnect and test.
- Inspect ribbon cable: Remove the front panel and reseat the ribbon cable between the touch board and main PCB.
- Check for cracks: Examine the touch PCB for physical cracks or burnt areas. Replace the touch panel assembly if damaged.
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Repair Difficulty
Easy
2/5
Required Part
Touch Control Panel PCB
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