hello Martin, could it be that the error message is "fail bus system" if so there is a communication error between display and MPU-board or EPS controller. First control the option setting put RS1 to 6 and go with the Mode button true the menu untill you see fingertip, in your case it must be ON. Second, on the MPU-board there are 4 LED (P15-P6-Hyd-Trv)and diplay board you have 2 LED (P7-Cpu) see witch one is blinking, on or off.
Kind regards
Marc

hi marc

i followed your instructions and changed the language.it says no bus line turn off keyswiych.it also said once : hydraulic lever to neutral. any ideas what this fault could be?

thanks
martin

hi marc.i will have a look at that and get back to you.thanks a million and yes it has finger tip control.

Hello Martin, first change the language. remove the back cover of the steering collum, there's a printcard (display board). change the blue colored switch (rotary switch) to 5, with the + and - button next to the display you can change the language (change the rotary switch back to zero). see what the error message is on the display when you activate the hydrolic levers, so we can go from there. has this model a fingertip control?
Kind regards
marc