Massey Ferguson 0A.62.24 – Tractor ECU: External Hydraulic Valve 6 Issue
Issue description
A malfunction within the circuit or mechanical operation of the 6th auxiliary hydraulic remote valve (spool valve), likely indicating an electrical continuity, solenoid, or communication failure at the valve.
Applies to these machines
41 machines- 7724S
- 5712SL
- 7722
- 7722S
- 5713SL
- 7720S
- 7716
- 7718
- T4
- 7715
- 5710SL
- 7726
- 7726S
- 5711SL
- 7718S
- 7719
- 7714
- 7716S
- 7720
- Tier 4 (2015-2021)
- 7715S
- 7724
- 4707
- 4708
- 4709
- 4710
- 5608
- 5609
- 5610
- 5611
- 5612
- 5613
- 7614
- 7615
- 7616
- 7618
- 7619
- 7620
- 7622
- 7624
- 7626
Check the cause
Locate the #6 external hydraulic valve at the rear remote stack and perform a visual inspection
Inspect the electrical connector at the valve for corrosion, pushed-out pins, or moisture intrusion
Trace the wiring harness from the valve back toward the ECU to check for chafing, breaks, or rodent damage
Use a compatible Massey Ferguson diagnostic interface device to retrieve the code, monitor live data for the #6 valve, and confirm if the fault is active or stored
Repair steps
Disconnect Power
Turn off the tractor and disconnect the battery to prevent electrical shorts during repair.
Isolate the Fault
If the wiring and connector are intact, swap the electrical connection from Valve 6 to an adjacent valve (e.g., Valve 5) if the harness allows. If the fault code moves to the new valve, the issue is in the wiring/ECU. If the fault remains at Valve 6, the valve solenoid or internal spool mechanism is faulty.
Remove the Valve
Depressurize the hydraulic system. Disconnect the hydraulic lines and electrical connector to the #6 auxiliary remote valve. Unbolt the valve from the rear hydraulic stack.
Replace or Repair
Install a replacement external hydraulic valve (or replace the electronic solenoid head if available separately).
Reassemble and Clear Codes
Reattach hydraulic lines and electrical connectors. Reconnect the battery. Use a compatible diagnostic tool to clear the 0A.62.24 code from the system.
Test
Run the tractor and actuate the #6 remote to ensure proper hydraulic flow and verify the code does not return.
Parts you might need
(1)External Hydraulic Valve / Auxiliary Spool Valve / Remote Control Valve
Manufactured by Bosch Rexroth (SB23 auxiliary valve series). Exact OEM part numbers vary heavily depending on the specific tractor series.
Get help to fix this fault by requesting a quote