Treadmill seems to slip while running,

see the video and proceed according. God bless you

Call Treadmill Doctor at 800-750-4766 or follow this link, this may help.

http://www.treadmilldoctor.com/Treadmill-Looses-power-when-I-setp-on-the-belt?utm_source=fixya&utm_medium=cpc&utm_campaign=mendi

Well I do not know exactly where you are.

I will recomend some place where you can order you parts.

www. proform. com

www.fitnessreapirparts.com

www.treadmilldoctor.com

www.gymparts.com

sincerely.

http://www.youtube.com/watch?v=AZSMLpXm-tA&feature=related

PLEASE DO IT WITH CAREFYLLY AND PACIENCE.

Do not overtight the belt, can overcome another problem,like overheating.etc.

sincerely.

check tension on the w/belt to loose will make it slip other wize check your drive motor belt thats under the hood. if you see a bunch of black dust your belt is worn replace

The walk belt should be tight (about 1.5" to 2 " when lifted at the edge), if not tighten screws at the rear. If the belt is tight enough then pull the front cover off and check the front roller. Sometimes the plastic drive pully slips on the front roller. If it only stops while you are running and is fine when you walk, i would go to the front roller.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/matt_8dbc24bf722649ac

there si an adjust ment on the belt if you have a manual it would tell you where the adjustment is

If the walking belt slips when walked on, first remove the key and UNPLUG THE POWER CORD. Using the hex key, turn both rear roller bolts clockwise, 1/4 of a turn. When the walking belt is correctly tightened, you should be able to lift each edge of the walking belt 2 to 3 in. (5 to 7 cm) off the walking platform. Be careful to keep the walking belt centered. Then, plug in the power cord, insert the key, and carefully walk on the treadmill for a few minutes. Repeat until the walking belt is properly tightened.

when the belt is stopped you should be check the deck if this it´s worm or the walking belt, because a probable cause is lack of lubrication, In addition should send the engine to revision, because according to what your gross probably already there are some Diode Rectifier damaged, You must know that the cause that generates this problem stems from the walking belt and the table or deck

Proform's website has owners manuls:

http://www.iconservice.com/proform/manuals.html

The list of available ones for your model are at:

http://www.iconservice.com/cgi-bin/ncommerce3/ExecMacro/proform/manuals.d2w/report?man=PROFORM&name=50071&lan=&x=0&y=0