I have a pro-form Crosswalk 415 treadmill model number 831 24723.6 One day it worked perfectly and the next day the only thing working is the incline? Any ideas

Karen, November 2012

Generic answer only. Can you hear the motor turning when you select the speed, yes then presume the belt / drive gear has worn and is not turning the belt you run on if no then check for loose/ burnt out connection to the motor and the motor itself. Check for any internal fuses. If ok check all wiring back to the control board where you select the speed/inclanation etc.

Mark, November 2012