505
Thermo King
Critical

Check Roadside Condenser Fan Motor Speed Circuit

Fault in the speed control circuit of the roadside condenser fan motor.

Possible causes

  • Burned fan motor
  • Inverter or speed controller failure
  • Blocked fan bearing

Recommended actions

  • Verify if the fan rotates manually
  • Measure voltage output to the motor
  • Check high power condenser fuses

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