I have a 2018 Coleman 1805rb with In Command controls. Recently I used the RV without any shoreline hookup. Still connected to my running vehicle, I operated the slide out and awning. The next morning I returned the slide out to travel mode, but not the awning till later in the day. When I went to retract the awning, my In Command screen was blank (dead). I had to retract the awning with the override switch in the BCM. I still have no use of the In Command screen. Still blank. I held the power button for an extended amount of time. My question is, do I have to have shore power to operate the awning and slide out? Did I over work the battery system to operate these two functions that might have triggered an overload on the In Command touch screen?