Perkins No Start – Basic Fuel/Air/Compression Issue

Generator cranks but will not start, no error code displayed on 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

Air in fuel system, Blocked fuel filters, Faulty fuel shutoff solenoid not energizing, Severely clogged air filter

How to Fix / Troubleshooting

Safety: Disable automatic start and ensure the generator cannot connect to load during testing.

  • Fuel supply: Confirm fuel level and that all shutoff valves are open. Replace primary and secondary fuel filters and bleed the Perkins fuel system using the manual priming pump.
  • Fuel solenoid: Check that the fuel shutoff solenoid on the injection pump pulls in during cranking. If not, test for supply voltage and replace the solenoid if defective.
  • Air filter: Remove and inspect the air filter element. Replace if heavily contaminated.
  • Compression/engine condition: If fuel and air are confirmed and engine still will not start, a compression or timing issue may exist and should be investigated by a Perkins technician.
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Repair Difficulty

Medium 3/5

Required Part

Fuel Shutoff Solenoid
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