Can anyone tell me where the electrical motor is for the slide out of a 2013 Heartland Trail Runner 27FQBS....presently the slide out is 4/5ths open and will not open all the way or close so I will have to manually turn it. Do I have to remove the corrugated plastic under the trailer in order to get to it? The battery is fully charged - hoping it is a faulty switch that can be easily replaced. If that's not the problem does anyone have any other suggestions? I can't locate a fuse for it (possibly inline) - is there one that you know of - nothing in the fuse panel indicates there is one there for the slide out.