Hyundai Power Products
Keypad / HMI Input Failure
Buttons on the control panel are unresponsive or intermittent
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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 membrane keypad, Moisture ingress into panel, Loose keypad connector, Controller input fault
How to Fix / Troubleshooting
Safety first: Turn OFF the generator and disconnect battery negative before servicing the control panel.
- Dry the panel: If moisture is visible, gently dry the panel area and ensure the enclosure seals are intact.
- Connector check: Open the panel and reseat the keypad connector on the Hyundai controller or HMI board.
- Keypad test: If only some buttons fail, the membrane keypad is likely worn and should be replaced.
- Controller check: If a new keypad does not resolve the issue, the controller's input circuitry may be faulty and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Control Panel Keypad
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