i insert the safety key and turn it on. all the lights come on and stay on---on the electronic console, and there is a continuous buzzing sound. i can press the incline button and the treadmill goes up and down...but pushing any other button has no results?
do i need a new console ...is it the motor? help please...
thanks

jeanie, April 2008

have a sears pro from 775 ekg it worked great but then the belt slips need help

ted c, January 2009

hi, thanks for the info.
the buzz comes from the electronic control panel.
as soon as i plug in the security key....the buzz starts...and all the lights stay lit up on the panel....
is this what you are calling the lower control board...
thanks.

cost wise....is it better to replace...or chuck the idea and get a new treadmill?

jeanie, April 2008

I dont like the buzz. Were is it coming from.
You can try this;
Stand to the side of your treadmill and push your belt with your foot. Then start the treadmill. If you have worn motor brushes this can kind of jump start it and it may move the belt in a jerky manner. You would need to replace motor brushes and clean the commutator.
If on the other hand your treadmill doesn't start and stops when you quite pushing. Then your motor brushes are totally burnt or you lower control board may be out. I really expect your board is gone.
Disconnect your tread from power.
Disconnect the black and red motor wires.
Hold the black and red motor wires to a 9V battery.
If your motor moves, you have a blown lower control board.
. For further help or a video You can contact me here,
www.mindbites.com/person/214-Mark
or markepeterson@austin.rr.com

Mark Peterson, April 2008