My pro-Form 545s treadmill's lights come on on the console. Sometimes it be?

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

How do i determine the value of a burnt resistor?

Incline stuck up?

e1?

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

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

380 proform razor?

Treadmill Warranty?

my treadmill stopped?

when walking the belt will stick?

Incline on my treadmill works, but nothing else?

Aligning belt?