My workhorse food processor, the KitchenAid KFP740CR0, just gave up running, and only hums when I press the start button(s). It seems like this is a symptom that suggests replacing the capacitor, but unfortunately, the capacitor it uses is no longer available. Is there a suitable alternative to this capacitor? The capacitor identification is Part No. AP4325453 or Whirlpool 8211608. I really hate the idea of trashing a perfectly good food processor for this problem, so appreciate any help you may have to offer. Thank you!