yes, they are good for many 'situations' we find ourselves in - my LCI system did the same back in 2014 in South Dakota - the 'breaker' is simply the easiest 'first' thing to check, though for newbies, it's not the first intuitive thought, since the panel is still 'working'.... the legs, though, work from the HOUSE battery bank, not the Chassis batteries, like the panel does.
'14 Palazzo 33.3 bunkhouse 34' diesel
KingTailgater2 Dish HD, 100w/5a SOLAR, BlueOx
100,000+mi since '14 - US, Alaska, Canada - Hiawassee, GA! (also, '14 Gulfstream Amerilite and '07 ForestRiver Rockwood) : )