while walking on my treadmill (proform 320x ) it will all of a sudden stop while I'm walking. Very dangerous and very scary. Does anyone know what is wrong? It was fine and then all of a sudden it started to do this. Any help will be appreciated - I don't have a warranty anymore so I can't call the store that I bought it at. Thanks!
This sounds typical of the 320x series, it's due to an electrical fault, the culprit is the Foofoo valve. This will need replacing, the part can be ordered from most electrical goods stores, or possibly even B&Q.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix gym/fitness equipment.