F17
MTU Onsite Energy High Intake Air Temperature

Controller displays F17 – Intake air temperature high alarm

Advertisements

Possible Causes

Blocked ventilation louvers, Recirculation of hot exhaust air, Faulty intake air temperature sensor, Cooling fan malfunction

How to Fix / Troubleshooting

Safety first: Ensure adequate ventilation in the generator room and avoid exposure to hot surfaces.

  • Check room ventilation: Verify that intake and exhaust louvers are open and unobstructed. Remove any debris or stored items blocking airflow.
  • Inspect exhaust routing: Ensure exhaust pipes are properly insulated and routed so hot gases do not recirculate into the intake.
  • Fan operation: Confirm that any room ventilation fans or radiator fans are operating correctly.
  • Sensor verification: Compare the controller’s intake air temperature reading with an independent thermometer. Replace the intake air temperature sensor if it is out of tolerance.
  • Re-test: After corrections, clear the F17 alarm and run the generator while monitoring intake temperature.
Advertisements

Repair Difficulty

Easy 2/5

Required Part

Intake Air Temperature Sensor
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements