Gillette No-Start Condition Without Logged Fault

Generator cranks but will not start; no error code displayed on the Gillette controller.

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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

Fuel shutoff valve closed, Clogged fuel filter, Air in fuel system, Faulty ignition components (spark plugs/coil on gasoline units)

How to Fix / Troubleshooting

Safety first: Turn the generator OFF and disconnect battery negative. Keep flames and sparks away from fuel components.

Steps:

  • Verify basic conditions: Confirm fuel level, check that the main fuel shutoff valve on the Gillette skid is open, and ensure the engine oil level is correct.
  • Fuel filter and lines: Inspect fuel lines for kinks or leaks. Replace the fuel filter and bleed air from the system per engine instructions.
  • Ignition (gasoline/LP): Remove and inspect spark plugs; clean or replace if fouled. Check ignition coil connections and plug wires.
  • Air intake: Inspect and replace a clogged air filter element.
  • Test start: Reconnect battery and attempt a start. If the engine still will not fire and no code appears, deeper diagnostics (compression, injector testing) by a technician are recommended.
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Repair Difficulty

Medium 3/5

Required Part

Fuel Filter
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