While you wait for answers, we may have found some information which could help you.
Click here for Treadmill Fitness Speed
tx 300 sporadic speed changes?
My tx4.9 sportcraft treadmill has power but wont run just has a 7 in the ca?
Why does my Sportcraft Tx 4.9 run slowly?
howtomendit.com for free repair help, information and advice.
