New Holland EHR 4306 – EHR (Electronic Hitch/Hydraulic Remote) Controller: Rear Remote No.6 - Over Voltage

The voltage signal on the circuit for the #6 rear hydraulic remote valve is exceeding the maximum expected threshold. This typically points to a short to power in the wiring harness, a failed internal potentiometer/position transducer inside the valve's powerhead, or a failure in the solenoid coil that is sending excessive voltage back to the controller.

• New Holland T6 Series
• New Holland T7 Series
• New Holland T8 Series
• New Holland T9 Series

1. 1

   Inspect the wiring harness and the electrical connector at the #6 rear remote valve for rubbed wires, damaged pins, or corrosion that could cause a short to a 12V power source.

2. 2

   Perform an isolation test by swapping the electrical connector/powerhead from Remote #6 with an adjacent working remote (e.g., #5 or #1). If the fault moves to the new location, the powerhead/solenoid is internally shorted. If the code remains active for Remote #6, the issue is in the wiring harness or EHR controller.

3. 3

   Attempt to perform a remote lever calibration via the in-cab monitor to rule out a software glitch or voltage range error before tearing down the valve stack.

1. 1

   Depressurize the System

   Turn off the tractor and cycle the remote levers/switches to relieve any residual hydraulic pressure in the system.

2. 2

   Disconnect Power

   Disconnect the tractor's battery to prevent electrical spikes during repair.

3. 3

   Remove the Faulty Component

   Disconnect the wiring harness from the #6 rear remote valve. Depending on the specific valve design on your model, you will either unbolt the electronic powerhead/solenoid from the top of the valve section, or unbolt the entire #6 valve slice from the hydraulic stack.

4. 4

   Install the New Part

   Mount the replacement electrohydraulic remote valve section or powerhead. Torque the tie-rod bolts to the manufacturer's specification to prevent leaks between the valve slices.

5. 5

   Reconnect Wiring

   Plug the electrical connector back into the new valve.

6. 6

   Calibrate

   Reconnect the battery, start the tractor, and navigate to the hydraulic settings in the IntelliView/Pro700 monitor. Perform the Electrohydraulic Remote Valve Calibration procedure so the EHR controller can learn the new spool's travel limits and neutral deadband.