While you wait for answers, we may have found some information which could help you.
Click here for Stops Seconds Code Errortx335?
tx 300 sporadic speed changes?
My treadmill stops when it hits 3 and will not go. Do not know what to do?
need speed sensor wheel?
What can i do to fix it the number 3 show up?
My tx4.9 sportcraft treadmill has power but wont run just has a 7 in the ca?