First: I'm having a problem with Gladys' ceiling lights
on the passenger side of the cabin. Those lights
on that side have stopped working. I've used a multimeter to test for electricity and it seems that there isn't any along that side. This issue includes the oven hood/light and I'm thinking that the lights
for the vent fan/oven hood are wired on the same leg and that somewhere there is a "break" in that circuit leaving the entire side out. The outside light
on the entry handle is out also and that used to work, even though we never used it.
Second: There is a light
at the top of the entry stairs in the main cabin the holds two bulbs controlled by a three position switch. First switch position is all off, second switch position is one bulb lit and third switch position is both bulbs lit. BUT, when I turn on the first bulb everything is fine However, when I turn on the second bulb and then the first bulb is reduced to 50% brightness and the second bulb may come on or may not. I have to remove both bulbs, turn the switch off and reinsert the bulbs to get either bulb to work again. I've attempted switching bulbs to other bulbs I know work correctly in an attempt to eliminate the issue but it doesn't matter what bulbs I use or if I use the multimeter; the sockets go dead. I've pulled the fixture and all connections look good and solid. The only thing that I can think is that the switch is failing' because everything else looks good.
MAIN PROBLEM: I don't speak "electrical" Ohms and resistance and all that crap so my searching on YouTube for assistance has been impeded by my inability to decipher what the hell they're talking about. I don't understand how to check continuity or that other crap to test the switch.
So, I'm stuck on the idea that I should replace the switch or fixture to see if that fixes the problem. I could simple loose wire a temporary fixture in place to test my theory, if I had one, which I don't.
Last: I'd like to replace all the incandescent bulbs with LEDs to cut battery
drain and lower operating temperature of the fixtures. Some of the lenses of the light
fixtures are showing a little age like they don't like getting so hot from the old bulbs. I wonder if anyone has any recommendations about LED bulbs for a camper/trailer.
Sorry for the long post that almost sounds winey but this issue has been in my hair for over 12 months and I've been avoiding it. It makes me a little crouchy.