The washer is made by D/A Industries
http://www.daindustries.com/
It has a 9 HP Honda Engine and a Cat pump.
The exact Model is "DA Pressure Ultralite 3000"
To me the secret is having someone local that can fix any problem's, at a reasonable cost. In my looking, I found many companies that could fix Honda engines and Cat pumps. It is great for cleaning the exterior of the house, the pool deck, etc. I don't even have to use chemicals, which tend to kill the plants.
Good luck on your search. Glad to answer any other questions you have.
By the way, where are you located? Your profile does not say.
Vic in Osprey FL