Trillium 4500 1978 - 12v suddenly stop working - Fiberglass RV
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Old 09-09-2023, 06:24 PM   #1
Junior Member
Name: Maggy
Trailer: Trillium 4500
Posts: 5
Trillium 4500 1978 - 12v suddenly stop working

I am turning to some of the veterans here for insights. Our trillium was working with 120v and 12v but, since last weekend, the 12v stop working.

I checked the fuse and replace them with 30A and no improvements. (We upgraded our 12v circuit to install a 12v Maxxair fan 5-6 years ago). You can check the setup attached.

The converter works with the 120v but nothing happens when I put it on battery. We tried reset button but, again, no improvement. You can find an image of the model of the converter and the circuit information from the manufacturer. If I understand this correctly, there is a breaker but no fuse.

Is this correct? Is there another fuse hidden in the trailer? The only onesi know are at the front of the véhicule.

Finally, I checked the battery. It is lower than it should. I get between 11.5 to 12.2V…. But this should still be enough to have the lights turn on, which doesn’t.

Any tips for potential next steps to investigate?

Thank you so much!!
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