BYD Unresponsive Touch Panel / Keypad Fault

Charger’s touch buttons or capacitive keys do not respond reliably, making it hard to start or stop charging.

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Possible Causes

Contamination or moisture on front panel, Faulty touch sensor IC on HMI board, Electrical noise affecting touch sensing, Loose HMI ground connection

How to Fix / Troubleshooting

Safety first: Do not use solvents on the front panel; they may damage the surface.

  • Clean the panel: Wipe the front surface with a soft, slightly damp cloth and then dry thoroughly.
  • Avoid gloves: Some touch panels are less responsive with thick gloves; try bare fingers.
  • Reduce electrical noise: Ensure the charger’s supply is properly grounded and that no high-frequency devices are mounted directly adjacent.
  • Use app control: If available, use the BYD app to start/stop charging as a workaround.
  • Replace HMI board: If touch remains unreliable, the touch sensor circuitry may need replacement.
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Repair Difficulty

Easy 2/5

Required Part

HMI / Display PCB
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