Don't be surprised if you don't have that manual reset on your main breaker. Seems like the monkey who installed our 2017 CY breakers and wiring had a bad day also. No manual resettable CB in mine at all....have looked and triple checked, but that main is auto-reset.
I also had the typical hydraulic pump CB kicking on and off syndrome while using leveling jacks, so purchased a NAPA 50A CB to swap in it's place and see if it helped before upgrading to the 80A CB many have done. Went to swap the new CB in and, well, seems like the wiring monkey installed a 30A in my hydraulic circuit instead of a 50A. The hydraulic pump hasn't skipped a beat since having it's proper 50A instead of factory installed 30A CB. I now wonder if I have a 50A CB in a 30A circuit....gotta check that someday.
Good luck tracing down the problem...and if you pull down the back wall of the pass thru, you may simply find the convertor is unplugged.