Mike - did you get anywhere on this repair yet? Like Bill suggested, I'd call Heartland (Monday) to see if they can give you some help determining what's what.
As you've likely already found, all the DC wiring goes into the frame through one or more holes. Hopefully, somewhere back in the frame, the wires are undamaged to the point where you can splice into them.
If it were me, with the coach unplugged from shore power and the batteries disconnected from the coach, I'd likely:
- Pull down the underbelly about 3 screws both directions from the point where the DC wiring enters the frame
.
- Pull all damage DC wiring ends back into the underbelly and out the bottom
.
- Flush cut all the DC wiring pairs at the same spot (as much length as you have good wire). Write down the jacket colors of all pairs
.
- Inside the slide, expose the location at floor level (likely under a cabinet/drawer) and locate what might be left of the DC wiring pairs
.
- Similar to a step above, flush cut each wire pair, write down the jacket colors of all pairs and to the extent possible, try to determine where they go / what they feed (DC lighting, DC power outlets etc.)
.
- Separate any coax cables (possibly 3 in total), flush cut them and splice in (F-connectors and F-81 splices) whatever replacement lengths of 2Ghz swept RG-6 coax you need.
.
- Source the same gauge (or heavier) stranded 2-wire zipcord in the length you need to replace all the DC wiring that was destroyed.
.
- As mentioned by others, consider using heat-shrinkable butt splices - at least for those made in the underbelly or outside. Try to avoid making any of these splices under the slideroom outside. Too much movement/flex of the wiring bundle.
.
- Protect the new wiring with 1/2" or 3/4" black split-loom
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- Secure split-loom with tie-wraps
Good luck!
On edit:
If the AC wiring (black flexible cord) also got severed or damaged, you can likely get that at any of the home building centers. It's
SJOOW type cord. It's spliced in junction boxes on the frame to Romex type wire (from the underbelly), runs through the
Lippert FlexGuard and up into the slideroom floor and likely into an indoor j-box to make the transition back to Romex.