My family laughs at me because I study the owner's manual before I use any newly acquired "gadget" big or small............then when they can't make something happen, and I can, they ask, "How'd you know to do that?"
I remember going out fishing right after "ice out" with the ole man. After lauching and pulling the starter rope about 300 times, he was exhausted and frustrated with his 20 yr old 5 HP outboard:
When's the last time you pulled and cleaned the spark plug? sez I.
Spark plug? wuz his chagrinned reply.
Our new FR RV had a nice yellow paper listing all the appliances and gadgets installed....FR factory personnel had enter the serial# next to the model # for EVERYTHING!
If I couldn't find a hard copy manual to match an item....I searched by company name, went to the website, and easily found a PDF file for everything!...then either noted the website, or printed off the pages I felt I needed for future reference.
If you buy a used RV, ask for any manuals....frankly, if the first owner didn't bother with saving them, and cannot produce receipts for repairs by others......I'd make them wait while I personally verified everything worked as they claimed......cause that's the sort of owner who'll forget to tell you about things that are broken, often through failure to follow the simple routine maintanence steps given in the back of the manual.
Once you have your new acquisition home...do yourself the favor of crawling around with a good flashlight and pad n pencil to record the make and model of all appliances. Then search the internet. You'll be amazed how responsible the better companies are about maintaining an archive of manuals for older models!!!
This having been said......go ahead and ask your questions on the forum....it's a fine way to clarify your understanding....and provides some of us with a lot of laughs reading good intentioned responses that are either "off point"...."totally wrong" ..... "or just enough to get you in trouble."
By the end of the string you'll manage to sort out the best advice.....(it will make sense and will be supported by 2 or 3 other similar posts that will cite their manual) .....from the chaff (these usually receive a quick respose that starts something like...."that approach surprises me" because the person's too polite to say, "Wow! And you haven't lost an eyebrow, a finger, or the use of major portions of your autonomic nervous system yet?"
You'll find the answer here..........it's a good forum.
But I must agree with the original poster, the best single source is available for the looking online....it's the manual! The forum's more fun, but the manual often talks not only about "turning the sumbitch on" but about how simple maintenace (like cleaning that spark plug yearly and replacing it peiodically) with keep the many components of your RV working safely and reliably. You owe it to yourself, your pocket book, and your loved ones to "make sure you know what you need to know".