Slide blows fuze

Update: been distracted for a couple days, but did some electrical testing today. Pulled the switch plate for all the lights, awning and room slide. The room slide switch actually has six wires going to it. 3 pairs. The top two wires are red and white. The red is + and the white is -. The bottom two wires are again red and white with the same polarity. Top red and white wires move the slide in and the bottom two wires move the slide out. The middle two wires are green and blue. There is 13.22 volts between the red and white wires in both top and bottom pairs. The two red wires go back into the cabinet a little and are connect to another red wires of the same gauge. Couldn't see any amp markers on these wires, but appear to be a stranded 10 gauge wire. Between either red wire and the green or blue wire there was .002 volts with the red being +. The resistance between the green and blue is 0 ohms
Didn't check for voltage between green and blue to a white wire, but assume it is about 13.22 v. Almost seems like the green and blue use the switch to connect the two of them. My guess is that the hot wire comes thru the 30 amp fuse, in the electric panel, to the junction behind the switch and to the in and out poles of the switch (top and bottom). The white wires go to the motor carrying the + voltage and ground thru the motor. So I am guessing that it is a 2 wire motor. Crawled under and came face to face with a nice plastic covering everything. Lots of foam sealer where the plastic is penetrated with plumbing, frame or wiring. Difficult to determine where the slide motor is located. so stopped. The wires appear to go up to the ceiling behind the multi switch plate, so am guessing the red wire comes down next to the refrig and into the electrical panel with fuses. Short would have to be between the fuse in the panel and the switch. Any other possibility??? JH