Pramac Controller Power / Display Failure

Controller display is blank or unreadable, generator otherwise appears intact

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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 supply fuse, Loose power connector to controller, Failed controller backlight or LCD, Internal controller fault

How to Fix / Troubleshooting

Safety first: Isolate DC power by disconnecting the battery negative before removing the controller.

  • Check fuses: Locate and test the low-voltage fuses feeding the controller. Replace blown fuses with the correct rating and investigate cause.
  • Inspect connectors: Reseat the main power and data connectors on the back of the Pramac controller.
  • Measure supply voltage: Confirm that the controller receives the correct DC voltage at its power pins.
  • Replace controller: If supply is correct but the display remains blank, the controller module likely needs replacement with the exact Pramac part number.
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Repair Difficulty

Hard 4/5

Required Part

Generator Controller Module
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