my friend. I have this Nichiyu with the A2 and D24 errors when it turns on the key, it has traction, hydraulic only the tilt works but always keeps the engine running and only stops turning off the key and it presents the error B21, the fet traction are ok because only I have together contactors the traction and I do not see those of the hydraulic. because it is necessary to see the components of it and I do not know where they are. My new board is the same. can you help me, how do i solve the D24 error