Rfloyd,
Not being a replaceable part means one of two things:
The manufacturer does not supply an identical part to replace it.
OR
The failed part is buried in an assembly that make replacement very difficult.
Neither of these is a reason to scrap the entire unit. Do you have a friend (or even a friend of a friend) that is an electric or HVAC smart person??
Offer said something of moderate value (dinner or glass encased substance) to look at the unit and see if he has an idea.
Capacitors are nothing special. It pretty much has to be external to the refrigerant circuit, but it might be a physical problem that needs a creative solution.
I am distressed that Domentic doesn't want to help you, but that is their choice. Oh, and when you get this figured out, sell the plan. There is nothing that they can legally do to stop you from selling a repair part that they will not supply.
Matt