New Holland 120: Short Circuit on Power Supply or Open Circuit of Fan Rotational Speed Regulator Potentiometer

The fault code indicates a short circuit on the power supply or an open circuit in the potentiometer of the fan rotational speed regulator. This can lead to improper operation or failure of the fan speed control system.

1. 1

   Power supply wiring for signs of short circuit

2. 2

   Potentiometer of the fan rotational speed regulator for open circuit

1. 1

   Inspect

   Inspect the power supply wiring for any signs of damage, fraying, or short circuit.

2. 2

   Test

   Test the potentiometer of the fan rotational speed regulator for continuity and proper function.

3. 3

   Replace

   If a short circuit or open circuit is found, replace the affected component as needed.