Good cautionary note Tony. Cap's can whack you pretty good if you're not careful, but they discharge pretty quick and you don't want them discharging into you.
The 75R (I have one) has a PSC motor. There is a start winding with a capacitor and a run winding. If it just hums when you turn it on, it's most likely in the start circuit which could be the cap or start winding.
Cap's fail more frequently than winding's, but they also fail.
If the motor turns freely like spinning it with your finger, then I would discount a mechanical problem.
Last edited by JKB; 09/10/15 02:38 PM.
