trailer with a flat 4 prong plug

[burgundyz71]

Towed my enclosed trailer today using my 7 to 4 adapter and when I unhooked the trailers flat 4 plug was real hot. I never really took notice before but is that normal?

[MikeNH]

I wouldn't think so, I towed a UHaul trailer with a 7-4 adaptor from NH to Michigan when I moved and it wasn't ever hot when I checked the chains and other stuff at each gas stop. Are all the lights on the trailer functional? All the connections clean?

[SouthCo]

I've never noticed the plug being hot while unplugging.

[burgundyz71]

I'm gonna clean all the connections tomorrow and see what happens and all the lights are working. The weird thing is I only towed it about 3 miles

[burgundyz71]

My adapter is pretty old maybe it's time for a new adapter.