Hi mrmorris,
1st question: are the other 12V systems working correctly? That would include interior and exterior lights, furnace, refrigerator in LP mode. (assuming no shore power, if these are working, your 12V manual-reset circuit breaker is ok and the battery has enough charge for the levelup panel to display menu choices - but maybe not enough to operate the hydraulics).
2nd question: if you connect to the truck and start the engine, does your levelup control panel work? (If the control panel shows the menu when connected to the truck, it's working, but you have a problem getting battery power to the levelup brain).
As someone mentioned, there is a 10amp fuse in the wiring harness to the pump.
Btw, we have a
12V Block Diagram and Diagnostic Guide that explains the buss bar and 12V circuit breakers (which are different from the fuses inside the coach, and the 110V circuit breakers inside the coach).
If the levelup system has an electrical or electronic failure, you may have to operate the pump and valves manually to hitch up and get going.
The manual override procedure is
in this document. Control valve locations may vary.