There is a reset button near the power cord that may have tripped. If you don't have the manual, look here, page 22 is the trouble shooting section.
http://www.iconservice.com/pdf/PFTL09910.pdf
If you are like I was, near the weight limit for the treadmill, it may have tripped while using it.
coforce
March 2009
I can answer this question...
i have a ct 1160 treadmill and jst stopped while exercising ?
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix gym/fitness equipment.