Incline not working on Proform 400s (model PFTL496130)
Recently while on the treadmill and the incline was at the full incline position there was a popping noise and the smell of smoke. The belt still functioned normally but the incline would not lower. I tried re-calibrating the incline and even though the display showed it calibrating it still would not move. When I adjusted the incline on the touch screen, it shows to be moving but never moves from full extension. I replaced the incline motor, did a recalibration and still no luck. My next step is to replace the controller. I currently have the incline in the flat position. Everthing but the incline functions normally. Does this sound like a controller problem or is there something else to check? The treadmill is about 5 years old. Thanks for any help.