30 / 50 amp service

I have a 2006 Holiday Rambler Ambassador. Last night, my 30/50 amp service stopped working. I checked the breakers in the coach and at the campground R2D2, and none were tripped. I stepped down my power cord with adaptors and reduced it to 110, I have power at that level. but I still cannot get the 30/50 to come on. The energy management system does not show any power.

I have tried to reset the inverter, just to see if it would help, negative results, the 110 works fine, but nothing on the high side.

Is there a separate fuse or breaker that I may be missing. Any help would be appreciated.