I’ve been screwing around with my treadmill and discovered you could set the incline to change automatically at specific times and to test I set the machine to go from a 4 to a 10 degree incline at 5 minutes.  This is what it sounded like:
*THUMP* *THUMP* *THUMP* *THUMP* *WHACK* “FUCK!”
Never place an adjustable incline treadmill immediately beneath a low operating ceiling fan.

I’ve been screwing around with my treadmill and discovered you could set the incline to change automatically at specific times and to test I set the machine to go from a 4 to a 10 degree incline at 5 minutes.  This is what it sounded like:
*THUMP* *THUMP* *THUMP* *THUMP* *WHACK* “FUCK!”
Never place an adjustable incline treadmill immediately beneath a low operating ceiling fan.