Generac

NO CRANK SIGNAL

UnclassifiedSpeed

What This Code Means

No crank signal detected; No cam signal detected; Difficult to start engine

Possible Causes

  • •Unknown (implied by the fault code itself, leading to further diagnostics)
  • •Low compression pressures inside the combustion chambers
  • •Faulty or worn piston rings
  • •Valves sticking or seating improperly
  • •Improper valve timing
  • •Leaking head gasket

Suggested Actions

  1. 1Check Wire Harness (Test 12)
  2. 2Ensure crankcase oil is of correct viscosity and at proper level
  3. 3Ensure battery is properly charged
  4. 4Operate unit until engine is at normal operating temperature
  5. 5Disable unit from starting
  6. 6Shut off gas supply to the unit
  7. 7Remove all spark plugs
  8. 8Install a compression tester in the No. 1 cylinder

Related Generac Fault Codes

OVERCRANK LEDOVERSPEEDNO CAM SIGNALOVERSPEED LEDMIL CODEPROBLEM 14IGNITION MODULE FAULT INDICATORR-200B015330UNDERSPEED012976005394
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