Case IH ATC120: Blower Speed Select Pot Open or Shorted to Power

The blower speed select pot is experiencing an open circuit or a short to power, which can affect the proper operation of the blower speed control system.

1. 1

   Blower speed select pot

2. 2

   Wiring connected to the blower speed select pot

3. 3

   Power supply to the blower speed select pot

1. 1

   Inspect

   Inspect the blower speed select pot for physical damage or signs of overheating.

2. 2

   Test

   Test the blower speed select pot for continuity and resistance using a multimeter.

3. 3

   Check

   Check the wiring and connections to the blower speed select pot for any breaks, shorts, or poor contact.

4. 4

   Verify

   Verify the power supply to the blower speed select pot is stable and within the specified range.