While you wait for answers, we may have found some information which could help you.
Click here for Sportcraft Tx400 Treadmilltx 300 sporadic speed changes?
My treadmill stops when it hits 3 and will not go. Do not know what to do?
What can i do to fix it the number 3 show up?
How can i fix my tx400 sportcraft treadmill model #04040?
I have a sportcraft TX 550 treadmil that stops working after 8 sec ?
Why does my Sportcraft Tx 4.9 run slowly?