If you have the proper adapter, all power will work but you will only have 30a available . You will likely be able to run only one ac at a time. When we have this situation, we only run ac at a time, operate the water heater on gas to conserve current load and conserve current use by not operating high current devices like coffee maker or hair dryers at the same time.
With 50a service, you have 2-120v legs and each is 50amps so the 30a service limits you to about 1/3 less current capacity.
2011 351RLTS Eagle, Mor/Ryde suspension & pin box, PT50C EMS
06 F350 Lariat PSD, SRW, LB, CC, EGR delete kit, 16K DrawTite hitch, Timbrens, TST TPMS
2017 GMC Terrain (future TOAD)
Can't find what you're looking on JOF? Try:Jayco Owners Forum Custom Google Search