[HayZee518]

take the motor apart again and clean off the centrifugal switch contacts. use a piece of 400 grit sandpaper NOT emery cloth. make sure the flyball weights are free to move outward. look at the nylon rubbing block on the flyball make sure it isn't grooved. what this does is disconnect the start capacitor when the motor is up to running speed. when you re-assemble the motor if there are any fiber spacers, make sure you got the proper number on either or both sides. these help keep the rotor centered in the magnetic field. a little bit of slide slop is ok. the plenum stat is a hi limit and run limit. if the proportional band is too close then the switch will be telling the motor to operate.