Case IH 4214 – EHR (Electro-Hydraulic Remote) Controller or Armrest Controller: EHR 4 Message counter error or Valve command different from valve feedback

The controller is commanding the #4 Electro-Hydraulic Remote (EHR) valve spool to move to a specific position, but the feedback from the valve's internal position sensor does not match the commanded position. Alternatively, it indicates a CAN bus communication failure, often displaying as an 'EHR 4 Offline Err'.

• MAXXUM T4E
• Magnum 235-340
• MX Magnum
• Puma 140-185
• Puma 150
• Steiger series

1. 1

   Check CAN bus communication by verifying the wiring harness and connector at the #4 EHR valve for open circuits, shorts, or damaged pins (addresses 'EHR 4 Offline Err').

2. 2

   Inspect in-cab controls, specifically the armrest joystick or EHR 4 lever, for incorrect voltage that could send erratic commands.

3. 3

   Check for erratic flow or mechanical binding inside the spool, especially if the valve is used to run continuous hydraulic motors.

4. 4

   Verify the calibration status of the valve to ensure it has not lost its calibration (look for codes 4216-4219).

1. 1

   Inspect and Clean Connections

   Disconnect the wiring harness at the EHR 4 valve. Clean the contacts, ensure the plug and O-ring are intact, and reconnect.

2. 2

   Update the Main Spool

   If the fault is caused by erratic flow or surging (especially when running planter/air seeder motors), replace the remote valve main spool with an updated version that features an additional small hydraulic oil bleed.

3. 3

   Replace the Control Module / Valve

   If the valve's internal electronics have failed (causing the permanent offline/message counter error), the EHR control module or the entire remote valve section must be replaced.

4. 4

   Recalibrate the Valve

   After replacing the spool, module, or entire valve, you must perform a valve calibration procedure using the tractor's display or diagnostic tool, as the new spool will not be recognized.

5. 5

   Clear Codes

   Clear the fault codes from the EHR controller and test the #4 remote valve for proper operation.