If you mean an original owner's manual for the trailer (which typically covers operation of the trailer and its basic systems), there is one in our document center:
Amerigo Owner's Manual
Major appliances are covered in separate, model-specific manuals, of which we have a number in the document center
. See the section for appliances. There is a link to the document center in the "More" tab at the top of the screen. It's not available on the mobile app.
Detailed how-to repair manual covering the whole trailer... don't think so. What do you need to fix?