You may indeed have an electrical issue even though the appliances work. Plugging into a GFCI can help make sure you don't have a ground fault problem.
A hot connector says that either your rig or the cable system has a problem. Several have reported a hot cable ground which caused exactly what you described.
I don't know where your spilters are located. They may be in a somewhat common place but production changes are often made on the fly - welcome to your RV.
Wire tracer might be a better description. Basically you connect one end of the wire to the transmitter and then use the remote receiver to trace the wire. Kinda of a geeky thing.