Interior lights

Do you have a disconnect switch? What position is it in?

No disconnect switch..when I hooked up my battery I got a small spark ( as always) then nothing,

Did you connect the battery with the correct polarity? If not, then probably blown reverse polarity fuses.

You probably have an auto reset circuit breaker (a little metal box with two terminals) in the wire between the battery and your converter. With shore power off, check to see if you have 12 vdc on both terminals. If not, bad breaker.

There should be a fuse or circuit breaker near battery
There may also be a "bat" use in the 12-volt DC distribution center.

Use a voltmeter to track down why the battery is not connected to the lights. Good fuses does not mean they have 12V.

Guessing you blew a fuse somewhere.

Silly question, but are they 12V lighting, and not 120V?

Thankyou all. It was a blown 30 amp fuseunder frame..I guess thats the reverse polarity fuse..,Thanks again, Happy safe travels...

Connor24 wrote:
Thankyou all. It was a blown 30 amp fuseunder frame..I guess thats the reverse polarity fuse..,Thanks again, Happy safe travels...

Awesome! Thanks for reporting back.

Normally reverse polarity fuse are in the converter and two of them.
One under frame protects the small amperage wire from high amperage of the battery. If this is the one adjacent to the battery, I would suggest changing it out to an auto-resetting 30 ampere circuit breaker.