The start-up is the killer... Some have had good results in adding a better start-up capacitor - Others have turned OFF everything in the trailer (Flipped all breakers except Air Conditioner) and got it to startup. Still others have played with starting the fan first then kick on the air conditioner compressor after the fan is running.
I tried all of the above with my 2KW HOnda EU2000i model generator and got it to run a couple of times only to kick-out when the air conditioner cycled the first time...
I just need a bigger generator for my COLEMAN model 8333D Mach 3 PLUS roof mounted air conditioner made by RVP RV Products.
Roy Ken