Thanks for pointing out the a potential reason for the failure. It's surely a surprise when a person hits the slide extend button and nothing happens
We never had it happen on our Journey, but on a previous motorhome to that with a foot applied parking brake, I had knocked off the brake wire switch with my foot. It's good you mentioned that issue now as folks can think about it he next time they have a slide extension that won't extend or jacks that won't go down.
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Joe & Shelly, Justin, Tyler, Alyssa | Butler PA
2008 Tiffin Allegro Bus 43QRP|Cummins 425|Honda CRV