Hailey, CONGRATULATIONS on picking up your Precept and getting her home. Now the real education begins. mowdoc gave excellent instruction.
You should have received a large bundle of manuals on all the systems in your RV. Your assignment (should you wish to accept) is to read and digest each and every one of those manuals. Then, go to each of your systems and walk through the process. Here are a couple of youtubes on the water heater.
Try to remember, the vast majority of things that don't work properly on an RV are simple fixes. Start simple: loose ground wires, loose connections for electrical.
The more you use your RV the quicker you are going to find those things that are loose. Don't panic, it is the nature of the beast. Be patient.
Darrell, Mary & K.C. Toller Mix
In our hearts: Goldens, Tess & Jericho
'15 Jayco Precept 31 UL "Bertha"
'13 Wrangler Sahara...AKAFUN
Roadmaster base plate
Ready Brute Elite towbar and brake combo