Okay, I have the EXACT same problem. Two cables, four wires going to my bathroom fan. [I]Separated from [URL="http://www.doityourself.com/forum/electrical-ac-dc/516928-help-4-wires-bathroom-ceiling-fan.html"]Help! 4 wires for a bathroom ceiling fan[/URL].[/I] As Forest Gump would say, I am not a smart man... I took the old one out and didn't pay attention to the wiring. I figured it was a simple wiring set up, to a switch. Wrong. When I took the old one out there were three sets of wires connected with wire nuts. I did not note them, thus I am here.... Here is what I have. Two sets of wires coming out of the ceiling. One set (Balck and White) are hot when I turn the breaker on. The second set is not hot. Including the fan itself, I have SIX wires to connect. Can someone tell me the connection order? Hot Black goes to ??? Hot Neutral goes to ??? Not hot Black goes to ??? Not hot Neutral goes to ??? Fan Black connects to ??? Fan Neutral connects to ???

3 years ago i rewired my barn for 240/120 service with a new box and new wires. i used the existing wires that run from the breaker box at the pole overhead to the barn they are 4 gauge wire.everything was fine then all of a sudden one night while i was working late i saw sparks come from the outside of the building and then the some of the light bulbs blew, replace bulbs and they act like they are at half power. upon inspection the main wires coming into the building was the shorting culprit. there was not a weather head the wires just ran through the metal wall and you could see where it was shorting out. put in a weather head and ran conduit. now that everything is hooked back up the lights still act like they are at half power.