Floor heat issue

[Magua]

@Magua Glad you found the problem. Regarding why did it happen my guess is a poor electrical connection within the wire nut. From the photo it appears the stranded wire may have had some of the strands cut at the point the insulation was stripped. Less strands making connection = effectively a smaller wire = too much current for the remaining strands = heat = what you see. It could also be a case where there was just a poor connection between the wires within the wire nut. From the photo it appears the stranded wire did not go far enough into the wire nut i.e. it's shorter that the solid wire. Bottom line, poor connection = more resistance = heat= melted parts.

Thanks for the reply. Makes sense. I’ll definitely be watching it

 

[Webz]

Maybe consider crimp style connectors. Less chance of vibrations, (driving down the road) making a loose connection.
I wish Newmar used crimp style connectors everywhere.