[porthole]

Rough numbers
Two AC’s 25-30 amps
Water heater 10-12 amps
Micro 10-15 amps

That would appear to be almost good enough until you factor in the battery charger converter or inverter.
That could add another 8-12 amps and you are over 50 amps. .

One thing you could check is to see how your panel is balanced. Eg what loads are on what line.

If you have the Surge Guard EMS the menu will allow you to see what voltage and current you are using on each line.

And you could have poor park power.