Got a pro form 390pi treadmill and when I step on the treadmill it slows down so much it sticks a little and goes
Go to your local hard ware store and purchase silicone spray. Apply Lubricant by lifting one side of the running belt spray contents length wise starting at motor shroud to the back end repeat this process the other side. If this unit bogs down again then you will have replace the running belt and possibly the deck.
Watch this videos tips:
http://www.youtube.com/watch?v=qgb2TY3WCkg&feature=related
http://www.youtube.com/watch?v=-oeXTKqWECw&feature=related
http://www.youtube.com/watch?v=GPI6dFJCUA4
http://www.youtube.com/watch?v=bF3OyQ3HwfU&feature=related
http://www.fixya.com/support/r10724803-measure_voltage_in_transforme_fitness
http://www.fixya.com/support/r10786838-test_procedure_dc_motor
http://www.youtube.com/watch?v=23ZgWaVEQjA
Test all the step videos. specially the speed sensor.
places: www. treadmilldoctor.com
www.fitnessrepairparts.com
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