Sudden Loss of 12v power

[dcogs15]

Driving our 3051S MH to storage lot last night. Hit a sharp pothole (Mich roads, gotta love em!). The radio shut off and lost station memory. When I parked the rig, I noticed that none of the coach 12v system was working (lights, pump, fridge, etc.). Cable connections at chassis battery are tight. Anyone have suggestion where to start troubleshooting? It almost seems like there might be a blown fuse, fusible link, breaker somewhere.

[dcogs15]

Found B+ cables on the coach batteries had popped off. Apparently the wingnut had not been properly installed. At least it held into the 3rd season!