how can i fix my vitesse evolution running machine?

i have recently bought a second hand vitesse evolution running machine, it was running perfectly till one day i went to start it up and i kept pressing the button to increase the kilometre to go faster and i did not have the magnetic safety catch on it and the console has died. are there any fuses in there. there is a small black button at the bottom of the treadmill by the on off switch which states that is a 7 amp but for what i dont know. please anybody any ideas or some to come and fix it please