I have a gold's Gym 480 brand new .tonight while I was on it I was using the #4 workout program when I slipped and pulled the magnet from the machine and it stopped. when I reinstalled the magnet it makes a noise like it's running but nothing is working..I've unplugged it and tried to restart it but the same thing happens .really i guess the sound sounds more like the incline sound more than the belt motor sound I guess..i'm new at this and can't figure out whats wrong with it.