Right. If it is the switch on the stereo cabinet then it is a master switch to kill all lights and the fan. It is a safety issue as was said.
Yes. You need to turnoff all the lights manually if you want the fan running. On my old pop up, the lights would actually dim as I put more lights on such as bunk ends and such. Those suckers draw lots of power. I should think about the LED mod.
Sounds like your unit is fine other than the stabilizer jack. Wonder if it got screwed up during delivery and the guy caught it on something and bent it. No worries. Should not cost you that much to replace it.
Tactical. Can you do me a favor? Can you measure the space between the tires? I want to pre-order some BAL X chocks to stop the rocking and need to know the distance so I can get the right ones. Thx.