2004 LY 33J Interior Lighting Issue

[Duke of Earl]

Hi I'm new to the Forum and the AS world. I have recently purchased a 33J Land Yacht and have an issue with the interior lights. The front (3) overhead lights are not working, the light over the galley (short one under the cabinet) and the bedroom lights don't work (TV works). All of the other lights work including the "pucks" under the cabinets. The patio light outside near the door also doesn't work.
I've changed the switches on the end of the sink next to the door as only the Step switch lights up. Originally thought it might be the switch(s) and I've checked the fuses at the 12V panel (roadside front storage compartment) and all check OK! Pulling my hair...what little I have left! Am I missing something simple? Any ideas would be greatly appreciated! Thanks

[mayco]

Have you checked the bulbs?

[mayco]

Youre going to have to do a little detective work if its not the fuse or the bulb. All your lights are 12v so they originate in your 12v panel. Even if a fuse looks good sometimes they are bad. If its not bad bulbs I would replace each fuse with a new one or at least the ones that control the lights. If its not the bulbs or the fuse then youre going yo have to get your multitester out and start tracing the feed.

[mayco]

Check your ground straps also, they can do funny things..

[windfallsp]

Do your overhead fluorescent fixtures have switches on the housing? If so, make sure all of these switches are in the on position before trying the wall switch.

[Duke of Earl]

Thanks for all of your input! It was a fuse issue...all seems to be working OK now...just need to figure out why THEY blew them in the first place!
Thanks again,
DOE