New Holland 3557 – Engine: Humidity Sensor Signal Ratio Above Limit

The humidity sensor is reporting a signal ratio that exceeds the defined limit, which may be caused by the sensor being saturated with water droplets.

1. 1

   Humidity Sensor

2. 2

   Environment around the sensor for presence of water droplets

1. 1

   Inspect

   Check the humidity sensor for signs of water droplet saturation.

2. 2

   Clean

   If water droplets are present, carefully clean the humidity sensor.

3. 3

   Test

   After cleaning, test the humidity sensor to ensure the signal ratio returns to normal.