Kind of hate to do it this way, but it's the same machine, so I guess it's part of the saga.
Got a call to look at it today about a thumb operation issue. Easy fix, op had bumped the hammer/shear switch out and the joystick buttons ceased to function. However, there is a code set now, and it doesn't seem possible for it to be remotely related from what I've found so far. Red flashing alarm lamp atop the display, and a code "128 100 3" showing. All I find is oil pressure related, possibly overvoltage on the 5 volt side, or shorted. I'm not too confident I've found the right code list, but it seems there is a standard for them, SAE J1939. Anyone care/able to add to that? Should be a test procedure somewhere for it. Does Volvo utilize that SAE standard?