WHILE PREPARING FOR A TRIP IN THE TRAILER, THE SMELL OF HOT ELECTRICAL WIRES WAS NOTED. UPON SEARCHING FOR THE SOURCE OF THE SMELL, A FIRE WAS NOTED ON A PLASTIC (PVC) PIPE. THE FIRE WAS EXTINGUISHED, THEN THE SOURCE OF THE HEAT WAS SEARCHED FOR. OTHER MATERIALS WERE BURNED ON THE UNDERSIDE OF THE TRAILER. AFTER MOVING SOME INSULATION AND OTHER MATERIALS AND SOOT, THE SOURCE OF THE FIRE WAS LOCATED. THE CABLE RUNNING FROM THE BATTERY TO THE POWER CENTER WAS INSTALLED BETWEEN THE STEEL FLOOR FRAME AND THE WOODEN WALL FRAME. APPARENTLY THE CABLE WAS PINCHED BETWEEN THE TWO FRAMES AND EVENTUALLY THE INSULATION WORE AWAY CAUSING AN ELECTRICAL SHORT. THE DAMAGE HAS NOT BEEN CORRECTED AS OF 9/1/2005. *NM