My A/C failed in the same way and with some help from youtube and a multimeter I debugged it to the same problem. Replaced it with this one: https://www.amazon.com/gp/product/B00GSU47TQ
There's a bunch of similar capacitors on Amazon (or your local hardware store). They're about the size of a soda can. I believe the "old" capacitor in your A/C can zap you if you don't ground the lines together when you pull it out, if you watch youtube videos for this repair they'll ground it with a screwdriver or other metal object.
There's a bunch of similar capacitors on Amazon (or your local hardware store). They're about the size of a soda can. I believe the "old" capacitor in your A/C can zap you if you don't ground the lines together when you pull it out, if you watch youtube videos for this repair they'll ground it with a screwdriver or other metal object.