I have two Cruisair split units on my 36. Both are 30 years old. The marina mechanic tells me the compressor on the little one is shot, keeps popping the breaker, and needs to be replaced. He's mentioned trying to find a replacement which I assume means a used or rebuilt one. He also mentioned replacing it with a new one. He also mentioned R22 which you can't use anymore. My question to you folks are, do replacement compressors exist? Can a new compressor can be used with an old air handler or do I need to replace both pieces? Is there a fix that I'm just not thinking of?

Thank you very much.