Certain lights are cutting on and off

[chief4vfd]

Need help. Everything in our RV is working great with the exception of the passenger under the cabinet lights, stove light/fan, bedroom light, and the hot water switch (at slideout panel). They will remain on from 30 minutes to 2 hours, then cut off. Then cut back on again after 6 to 12 hours. Then back off again from 30 minutes to 2 hours. Always the same lights/equipment. I plugged into a 50amp shoreline with same results. Also same results on generator power. And same results at a different 30amp shoreline. Have cut everything off, but it still does the same thing. HELP.

[fischer]

Your owners man. says there is a BCC , battery control center on the chassis firewall that controls where 12v goes , the board might have resettable breakers. Do you have a sw on your dash to jumper both batteries together. try pushing it when the lights go out to see if it makes any difference.

[Chris_Bryant]

Another vote for a loose fuse holder on the main panel- it heats up and the lights go off, cools down and it's restored.

[enblethen]

Locate the battery control center and look for a main fuse or circuit breaker.
Check your 12 volt DC power distribution for main fuse and check it. If it is a fuse make sure it is tight in the holder. You may want to change it out. Do not trust your eyes!

[chief4vfd]

I also cut all the appliances, heaters, and ran minimal lighting and it didn't make any difference with this issue.

[chief4vfd]

No. The under cabinet lights are on the passenger side and the bedroom light is in the rear. The hot water switch is located on the same hallway panel as the slide out switch. Also forgot, the bathroom light is affected as well. The base of the bed has two modules. The top are fuses and the bottom are breakers. I checked them all each time the affected lights went out. But they all seemed fine. I even reset each breaker during the event, but nothing. They eventually came back on a while, then went back out.

[enblethen]

Artum Snowbird:
Yes, that is longer then normal, however it could stay open if the excess load is still present.
OP:
Are all the problematic items on a slide out? If so check the connectors that handles the wring to the slide.

[Artum_Snowbird]

Would an auto resetting circuit breaker take 6 to 12 hours to reset itself?? That seems like a long time. I am just asking, as I have no experience with them.

If you can get to the 12 volt breakers, check to see that the wires are tight that feed that circuit. A loose connection will add to the circuit load considerably.

[chief4vfd]

It is a 2004 Damon Daybreak on a P32 Workhorse Chasis.

[enblethen]

Welcome to RV.net!
It would help to know the make and model of your rig. It is good to put it in your profile or signature.
Sounds like it could be an auto resetting circuit breaker is tripping and then resetting.
Look in your battery control center and your DC power distribution panel for a 12 volt DC circuit breaker. They is a coupl different styles. One goes in place of a standard fuse. They are normally a small silver colored can about 1/2 inch long and 1/4 inch wide. Others are a siler metal or black plastic box about 1 inch square with two posts.

[sch911]

These are all 12V lights so shore power would have no direct effect. Sounds like a self resetting circuit breaker issue. These looks like small rectangular metal boxes with two terminals.