Gillette Intermittent Shutdown Without Logged Fault

Generator runs for a short time then shuts down without any code; controller may simply show STOPPED.

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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

Loose DC power connection to controller, Intermittent safety switch contact, Vibration-induced wiring fault, Failing controller PCB

How to Fix / Troubleshooting

Safety first: Turn OFF the generator and disconnect battery negative before inspecting wiring.

Steps:

  • Check DC supply: Tighten battery connections and the DC power terminals at the Gillette controller.
  • Inspect safety switches: Wiggle wiring at oil pressure, coolant temp, and E-stop switches while observing for intermittent contact (engine off). Repair any loose terminals.
  • Harness inspection: Look for chafed wires where the harness passes through bulkheads or around the engine.
  • Controller: If all wiring is sound and shutdowns persist with no codes, the controller PCB may be failing and require replacement.
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Repair Difficulty

Hard 4/5

Required Part

Generator Controller PCB
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