New to me '92 Terry Resort Travel Trailer

[Horsecrazee]

Just purchased a used TT to be mainly used at our lakefront lot rather than building a cabin for the first few years. I've camped in the past and have had 5th wheels or horse trailers with Living Quarters but never a TT.
First question I have on this one is that there are 2 switches that are labelled for the water heater. I am familiar with this concept of an electric/gas water heater, but only with one switch. The first switch labelled water heater and located near the tank status panel, makes sense to me. The one on the roof that is a standard toggle type light switch is labelled on one side as microwave and the other side is water heater. Is this a switch to control overloading the breakers where you need to physically switch this switch from water heater to microwave every time you want to use the microwave? Or am I totally missing something?
Also, just inside the door is a panel with 3 switches, 1 black and 2 white toggles. I am guessing we have some burned out bulbs as only 1 white switch is working. Is the black one the outside light and the other 2 for indoor lights...maybe living room and then kitchen?
All of the owners manuals and related documents were included with the trailer but didn't have very indepth details. Hoping to find someone else with a similar trailer who might be able to answer some of my questions for me.
Of course it's December in Manitoba and a blizzard out, just got the trailer home yesterday so I can't even test things out for months yet to see what is working or not! It's not been used much, mostly been just stored for the past 5 or 6 years.
Thanks a bunch!
Rhonda

[2Bargos]

A camper that I owned in the past was setup kinda like what your describing..One switch was for gas operation of the water heater,,the house type switch controlled the electric (110 volt) for the water heater.

be cautious and do not turn the 110 volt on without water in the heater tank as it will cause the electric element to burn out.

As for the other switches,make sure all bulbs are good and flip them on to see what function they control,,one is definately for interior lights,Imo another is for porch light .the third one could be for more interior lights,possibly a light on the hookup side of camper ,maybe a light in storage compartments.,.

Just keep flipping and looking..