Hyundai Power
Display / HMI Failure
Controller display is blank or unreadable, but generator may still run or crank.
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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
Blown display fuse, Loose Hyundai Power HMI ribbon cable, Failed LCD module, Low control power supply voltage
How to Fix / Troubleshooting
Safety first: Turn OFF the generator and disconnect battery negative before opening the control panel.
- Check control fuses: Locate and test the low-voltage fuses feeding the controller and display. Replace any blown fuses with the correct rating.
- Inspect display cable: Reseat the ribbon cable or connector between the main control board and the display module.
- Measure control voltage: Verify that the controller is receiving the correct DC supply voltage from the Hyundai Power power supply module.
- Replace display: If power and connections are good but the screen remains blank or garbled, replace the display/HMI module.
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Repair Difficulty
Medium
3/5
Required Part
Controller Display Module
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