The blocks you are talking about are in fact the breakers, and they are just thermal breakers that close again after cooling, and the one that is connected to the wire that feeds the hydraulic pump motor. There are no reset buttons on them. If you are having issues with the leveling system and you have hydraulic levelers, the fix is to replace the breaker that feeds that hydraulic pump with the 80 amp breaker that Lippert says should have been installed when the system was installed. This is the one I installed in our rig, but they also make an auto-reset version, but you will find that the proper sized breaker will not trip unless a fault occurs.
https://www.amazon.com/Bussmann-CB18.../dp/B01LRHRNKE