On my Winebago Vista, the LCI Leveling System Positive (+) Power Cable from the motor solenoid lands on a ANL fuse in the Chassis Electrical Box that is tied to the Chassis Battery Disconnect Solenoid. It is a #2 gauge wire. Not sure what size fuse, likely 80 or 100 amp.
On my Vista, the connection is behind the circuit breaker panel. IMHO it would be a lot easier to disconnect the Negative (-) cable from the solenoid on the LCI leveling system pump if you are dealing with a solenoid stuck in the on position. The solenoid appears to be removable and replaceable, it has a LCI part #on the Level Up manual.
Randy - Manhattan, Kansas
2015 Vista 27N
2020 Ford Escape Hybrid