Hecht Keypad Contact Wear / Moisture Ingress

Robot mower display works 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

Worn keypad membrane, Corrosion on keypad PCB, Moisture trapped under panel, Damaged ribbon cable

How to Fix / Troubleshooting

Safety first: Turn OFF the mower before working on the control panel.

  • Dry the panel: If the mower was in rain, allow it to dry indoors for several hours.
  • Test all buttons: Note which keys fail; if multiple keys in a row fail, the ribbon cable may be damaged.
  • Inspect cable (advanced): Open the top cover and check the keypad cable connection to the Main Control Board.
  • Replace assembly: If cleaning and reseating do not help, replace the Keypad / Control Panel Assembly.
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Repair Difficulty

Medium 3/5

Required Part

Keypad / Control Panel Assembly
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