Gaining on the sewing room RV. Dang, what struggle. I consider myself a fair hand with automotive 12v power and can get by with 110/220. But the combo stressed me out and tossed me some curves. You old hands at this, know what I am talking about. Maybe some of my learned newbie trials will help others new to RV's.
After dead batteries, battery chargers, volt meters and test lights, I am gaining. After two days, I confirmed the converter was not working. I have an old, 40 year old, 40 amp unit I saved from a salvage deal. My brother advised me to just step up and get a replacement, modern unit. That some old junk might burn down the RV and the shop it sets next to. The old one is about 20#, the new one is 4#.
So, I do some research and find that a new exact replacement was very affordable, 55 amp. That I didn't have to buy the whole power panel and converter. I was dreading the wiring nightmare and plumbing that surrounded the system. I was within minutes of ordering one up, then decided to take the front panel off to see how difficult it would be to come out the front. It was un-plugged from the power source. It works perfect, 13.8 volts. No clue why they did that.
Then I went after the lighting. Only three, 110 wall lights that were dangling by the wires and all bulbs gone. I fixed them, Lol, just need to find some shades. There must be at least 20+, 12 volt lights. Some single bulb, some double, two with push in bulbs, some 1141's with single contacts, some double, jeez. Two 18" fluorescent 12v. Afraid to upgrade to the standard 1156 bulbs, 290 lumens (1141) v/s 400 for the 1156 I decided on LED's. I think the standard 1156 will melt the lenses.
Wanting to make them brighter, I picked up a few LED'S from ACE, that was a mistake. Napa and Camper World are about half of ACE, still way too expensive. So, I go on line and find 20 packs for $13 or about 50 cents each. I went ahead and ordered 3, 20 packs.