Rear Bunk LED lights DIM

[tledwards25]

Has anyone else had rear LED lights go dim. Usually happened within seconds on turning on switch. The two ceiling lights are dim and also the two wall lights - entire circuit it appears. I went to check with a multimeter when the lights were dim and the light sparked lightly and then when to full light out put. Looks like a loose or bad ground... where is the ground? On the buse bar behind the converter? I had it into warranty when it was new for same issue and they replaced all the lights and switches but it came back - intermitted condition. All the other lights in camper are bright.

[tledwards25]

Its a 2016 Jayco Eagle HT 29.5BHS

[RogerR]

I have had it both ways over the years.

Recently went into camper and the whole DC system down. Loose wire at the bus bar!

Ceiling light and a tail light were both corroded ground wires.

PS is it the same on battery and on shore power?

[Shokyle1]

Thought of this thread last night when I was adding a USB to the bunk area off the main light feed. When I cut the black power wire all lights went out. Not surprising. What was surprising was when I cut the white ground they all dimmed but stayed on. Does seem you have a problem with the main ground.