Has anyone ever ran across a Fischers mini-split hp?

I can't find parts.
I have a customer with one and have called the numbers they have only to get voice mail. I have left several messages with no response. The unit is only 1 1/2 years old. The compressor is shorted. Paperwork says 5 year warranty. None of my vendors have any ideas.
The compressor is a Mitsubishi. My Mitsubishi supplier thinhs they can get the comressor, but No warranty.
Looks like HO will be buying the compressor or a new system.