multiple problems with new Forest River

Thank you all for your help, your tips and suggestions. This is our 4th travel trailer and I was divided into having the dealer fix these issues (since it's new and under warranty) or just give it a go and try to fix these issues myself and get them done right. It would be a major hassle to tow it to a repair facility and with your suggestions I am going to put on my "fix it" hat and start diagnosing the issues. Wish me luck and I'll keep you posted on what I come up with. I've learned so much on this forum over the years, thanks