Triangle Tube
Unresponsive User Interface
Triangle Tube water heater display shows temperature but buttons do not respond or respond erratically.
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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
Faulty keypad or display board, Moisture intrusion into control panel, Loose ribbon cable, Control firmware glitch
How to Fix / Troubleshooting
Safety: Turn off power before removing the front panel or control cover.
- 1. Power reset: Turn off power for 30–60 seconds, then restore. Sometimes the interface will recover from a minor glitch.
- 2. Inspect panel: Remove the front cover and check for signs of moisture or condensation on the display board. Address any leaks.
- 3. Check ribbon cable: Reseat the ribbon cable between the display and main control board. Ensure it is fully inserted and not damaged.
- 4. Drying: If moisture is present, allow the panel to dry completely before re-energizing.
- 5. Replace interface: If buttons remain unresponsive, the user interface board may need replacement by a technician.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Board
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