Slideouts suddenly not working

On my motorhome, to activate the slides, the parking brake does not have to be engaged.

However, changes are sometimes made within the production year that no one (dealer?) knows about...and/or are not in the owners' manual or even in the schematic supplied.

With me...once, my slide would not extend. However, turning the switch the other way (retract) the motor would sound....like it was trying. The slide is controlled by a (main) 30AMP fuse. I checked it...it looked good...but I replaced it anyway. Same thing. Took it to my dealer, he checked exactly what I did and came up with nothing....until a fellow mechanic said that there might be TWO MORE fuses...a mid year design change. Found them...hidden behind a large wiring harness (where the converter,inverter and main fuse box are. One 30AMP fuse to extend...One 30AM fuse to retract.
The 30AMP fuse to extend had blown.

That's how y'learn.

Craig95005 wrote:
We have a 2012 Thor Challenger with three slideouts. All was working fine until we took it to a shop for a routine service (plus re-caulking of the roof). Now even when plugged in to shore power, or running the generator, the three slideouts don't work - and in fact I don't even hear the slide motors come on and try. I think everything else is working - the AC, microwave oven, and electric fireplace. The breakers and fuses in the panel look okay. I should mention that we did replace the two six volt batteries for house power just recently - but the slides worked fine after that. Any ideas of what might be going on, or how to track down this problem?

What was the "routine service" that you had done... it may provide a clue as to the cause of the failure.

Engine off shifter in park all the way? Do you have a key lock on slides?

Problem solved. It was the slide key lock. I'd never had reason to use that before, and when I had checked it visually yesterday, it looked to be in the Off position. But after Fourmat's post, I turned it on, then off again, and after a little click, the slides started working again. My guess is that the shop had tested that, then turned the key toward Off, but not far enough.

Thanks, all.

Thanks for the follow-up. It may help someone else that encounters the same type problem. So many get their problems, and never let us know what they did to fix it, or even want the actual problems was. Thanks.

Check ground wire from the house batteries to the body