Gillette Controller Power or Display Failure

Control panel display on the Gillette generator is blank or unreadable; generator does not respond to buttons.

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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 controller fuse, No DC supply to controller, Failed display module, Loose ribbon cable

How to Fix / Troubleshooting

Safety first: Turn OFF the generator and disconnect battery negative before opening the control panel.

Steps:

  • Check fuses: Locate and test the low-voltage fuses feeding the controller inside the panel. Replace any blown fuses with the correct rating.
  • Verify DC power: Measure voltage at the controller power input terminals. If absent, trace back to the battery and charger connections.
  • Inspect display connections: If the controller has a separate display, check the ribbon cable or connector between the main PCB and display for secure seating.
  • Controller replacement: If power is present but the display remains dead, the controller/display assembly may need replacement.
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Repair Difficulty

Medium 3/5

Required Part

Generator Controller Display Module
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