That is indeed a 2 ton unit. For 12ga wire, you are well within the MCA at 55'. So voltage drop wouldn't be an issue.
A new cap doesn't mean it's a good cap. The microfarad rating should be equal to or slightly higher than the original. It would have to be tested to check it.
A new cap doesn't mean it's a good cap. The microfarad rating should be equal to or slightly higher than the original. It would have to be tested to check it.