Report "Hello i have a proform j6 treadmill when first starting i will be walking on the treadmill when all of a sudden the belt will stop working i have power to the controls up top i opened the front compartment and the board has power but no movement this doesnt happen all the time just some times also if when this happens i pull the red key wait about a min and replace the key sometimes this works or sometimes i have to start walking while replacing the key and then it will work. please help!!!!!!"