proform XP550s stuck in full incline with motor running and clicking?

I had this happen and for me the solution was in the "User's Manual":

Problem: "The incline of the treadmill does not change correctly. "

Solution: "With the key in the console, press one of the incline buttons . After a few seconds, re-insert the key. The treadmill will automatically rise to the maximum incline level and then return to the minimum level. This will recalibrate the incline system."

Joel Feldman
September 2008

It sounds like it can't find it starting point. Look on the inside of the hood for calibration instructions and try to calibrate it first
markepeterson@austin.rr.com

Mark Peterson
March 2008