SENSOR FAILURE
Centurion Failed Engine or System Sensor Input

Control panel shows SENSOR FAILURE or INPUT FAULT; generator may refuse to start or may shut down unexpectedly.

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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

Open or shorted coolant temperature sensor, Faulty oil pressure sensor, Damaged wiring harness to sensors, Failed analog input on control board

How to Fix / Troubleshooting

Safety first: Turn the generator OFF and disconnect battery negative before unplugging sensors.

  • Identify sensor: Use the Centurion manual to determine which sensor is indicated (oil, temp, etc.).
  • Inspect connector: Unplug the sensor and check for corrosion, bent pins, or moisture. Clean and reconnect firmly.
  • Check harness: Follow the wiring harness from the sensor to the control panel, looking for chafing or cuts.

When to call a technician: A technician can measure sensor resistance, compare to specifications, and replace the sensor or control board if defective.

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Repair Difficulty

Medium 3/5

Required Part

Coolant Temperature Sensor
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