Several years ago I had a lightening strike at home where I keep our MH on shore power 24/7. In addition to the TVs (2), the microwave and the thermostat, the Xantrex Freedom 458 inverter/charger was zapped. I removed it and sent it to the regional authorized repair center, Here's where to find them:
Take plenty pictures starting before you remove the wires and at every step so you can out it back the way it was.
Also if you MH has a "master DC fuse" you should check it too because that may be part of the problem. (causality of the lightening strike too)
Hope this helps
J.J. Hayden (KN4SH)
2005 National Dolphin 5342