Why won't my proform 755 cs treadmill decline/?

how do i remove the motor cover without breaking the plastic?

Incline on my treadmill works, but nothing else?

Aligning belt?

Incline stuck up?

my treadmill stopped?

e1?

My treadmill inclines but the belt will not run. I checked everthing!?

when walking the belt will stick?

380 proform razor?

I lost the key to my prform 770 ekg treadmill,where can I buy this key?

Treadmill Warranty?

How do i determine the value of a burnt resistor?