Lectron Keypad / Button Input Failure

Lectron charger’s front panel buttons (if equipped) do not respond or respond intermittently, but the display is on.

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Possible Causes

Failed membrane keypad on display board, Loose keypad ribbon cable, Contamination or moisture under buttons

How to Fix / Troubleshooting

Safety first: Turn OFF the breaker before removing the front panel.

  • 1. Power reset: Turn OFF the breaker for a few minutes, then ON, to rule out a software freeze.
  • 2. Inspect keypad cable: With power OFF, open the unit and reseat the keypad ribbon or harness on the display board.
  • 3. Check for moisture: Look for condensation or liquid ingress around the front panel. Dry thoroughly and improve sealing if needed.

Resolution: If buttons remain unresponsive, replace the Lectron display/keypad assembly.

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Repair Difficulty

Easy 2/5

Required Part

Lectron Display/Keypad Assembly
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