[daniel brown]

We have a 2002 9650sts and the threshing speed reading suddenly went to 0. However, the rotor turns, the belt adjusts, the wiring appears good, and bearing is fine. I replaced the sensor, and it still reads 0. What other possibilities are there for a solution?

 

[JDMasterTech]

Cornerpost control unit went bad. Problem with the 50 series.

 

[Neufeldt]

We had a worn wire on our 9750 rotor speed sensor, did the same thing. I'd check the wiring harness, especially around the deflector plate that protects the sensor.