Typically when this occurs, it is an indication of a short circuit in the motor controller board. To test to make sure the problem is in the board
1) Unplug the treadmill from the wall.
2) Remove the motor hood.
3) Unplug the speed wires from the board. On many boards, you will have 2 to 3 wires that control speed and many are labeled H, W, and L. If you cannot find the speed wires, do not guess, contact us with your make and model number and we will try to help you with the wiring.
4) Return the treadmill to a usable position once the speed wires are disconnected and plug the treadmill back in.
5) If the treadmill begins to run at full speed, the motor control has failed and requires replacement.
6) If the treadmill does not run at full speed you could have a speed input problem, wiring problem, or another short circuit.
For any further troubleshooting questions please do not hesitate to contact us, our number is 888-713-2880 or check out our Tech Support Center online
http://www.sportsmith.net/supportsearch.aspx
Always hear to help, SportSmith
×