New Holland 4131 – EHR: Rear Remote No. 3 Not Commanded Neutral

The Electro-Hydraulic Remote (EHR) controller has detected that the spool for the third rear remote valve is not in the neutral position during the power-on self-test. If the controller detects the valve is already in a float, raise, or lower position at startup, it logs this fault and disables the remote valve as a safety measure. This will affect the proper operation of any connected hydraulic equipment.

• T6.140
• T6.145
• T6.150
• T6.155
• T6.160
• T6.165
• T6.175
• T7.170
• T7.185
• T7.200
• T7.210
• T7.220
• T7.235
• T7.250
• T7.260
• T7.270
• T7030
• T7040
• T7050
• T7060
• T7070
• T8.xxx
• T9.615

1. 1

   Check for intermittent electrical issues by inspecting the wiring harness and connectors between the EHR controller and the #3 remote valve for damage, corrosion, or loose plugs (especially at the valve block).

2. 2

   Verify system voltage at the battery and charging system, as low or unstable voltage can cause erratic module behavior.

3. 3

   Check for a mechanically stuck valve spool caused by debris in the hydraulic system or worn internal components.

4. 4

   Test the remote valve potentiometer with an ohmmeter to ensure resistance changes smoothly between the center and outer wires as the spool moves.

5. 5

   Inspect the solenoid for visible damage or failure that might prevent the spool from returning to its spring-centered neutral position.

1. 1

   Prepare machine safely

   Park the tractor on a level surface, lower all implements, shut off the engine, and relieve stored hydraulic pressure by moving the remote levers back and forth several times.

2. 2

   Visual inspection and wiring check

   Thoroughly inspect the wiring harness and connectors between the EHR controller and the #3 remote valve. Clean any corroded terminals and ensure all connections are secure.

3. 3

   Swap components for testing

   If accessible, swap the suspect potentiometer or solenoid from valve #3 with a known working valve (e.g., #2 or #4). If the fault code moves to the other valve, the swapped component is faulty.

4. 4

   Valve spool inspection

   Carefully remove the end cap and solenoid from the suspect valve section. Attempt to manually move the spool; it should move smoothly and return to the center (neutral) position via spring pressure. If stuck, the valve block may need to be removed and disassembled to be cleaned and inspected, replacing O-rings and seals (use a service manual as there can be small components like check balls and shims).

5. 5

   Replace faulty components

   Replace the identified faulty potentiometer, solenoid, or the entire valve section if individual parts are not serviceable.

6. 6

   Calibrate the EHR system

   Perform a system calibration routine, potentially requiring a dealer's Electronic Service Tool, so the controller recognizes the new parts and position values.