Lost my 12v side in a 2021 367BHS

[LIoutdoors]

Where do I start to look for the issue? We were dry camping on the beach this weekend and last night in the middle of the night I lost all 12v in the camper with the exception of the 3.0 ground control leveling system? I did connect a 1000w inverter directly to the LIfePo battery to run the new star link. I was alerted by the fridge that was running on LP started beeping and flashing LO DC. No Pump, no fridge. In the morning I started the Honda 2000EU generator and everything ran fine. Batteries are fully charged via converter and solar panels but still no 12v when not on shore power/generator.

Where would everyone begin to wring this out? What am I looking for? Thanks in advance.

 

[SolarPoweredRV]

Where do I start to look for the issue? We were dry camping on the beach this weekend and last night in the middle of the night I lost all 12v in the camper with the exception of the 3.0 ground control leveling system? I did connect a 1000w inverter directly to the LIfePo battery to run the new star link. I was alerted by the fridge that was running on LP started beeping and flashing LO DC. No Pump, no fridge. In the morning I started the Honda 2000EU generator and everything ran fine. Batteries are fully charged via converter and solar panels but still no 12v when not on shore power/generator.

Where would everyone begin to wring this out? What am I looking for? Thanks in advance.

Hope this isn't too late, but have you checked your battery disconnect switch?
This switch is notorious for getting accidentally bumped and causing DC problems, sometimes hours after being bumped.

 

[jkwilson]

You may have exceeded the current limit on the battery and the BMS shut down.

 

[traveldawg]

Where do I start to look for the issue? We were dry camping on the beach this weekend and last night in the middle of the night I lost all 12v in the camper with the exception of the 3.0 ground control leveling system? I did connect a 1000w inverter directly to the LIfePo battery to run the new star link. I was alerted by the fridge that was running on LP started beeping and flashing LO DC. No Pump, no fridge. In the morning I started the Honda 2000EU generator and everything ran fine. Batteries are fully charged via converter and solar panels but still no 12v when not on shore power/generator.

Where would everyone begin to wring this out? What am I looking for? Thanks in advance.

You put a load directly on the battery; no 12v in the morning; OK on shore/generator. Sure sounds like a battery problem. @jkwilson probably has a good point.

Time to remove that load on the battery; give the battery time to rest/recharge and try again.

The jinx here is that the 3.0 ground control is/was still working. Maybe it is on the battery directly and not after a fuse. There should be a fuse from the battery to the 12v systems (or a breaker?).

Was the inverter really on the battery directly? Or maybe somewhere else? If the battery did shut down then why would one 12v device (ground control) still work?

Heck - more questions than answers.

 

[huntr70]

I would lean towards the battery disconnect as well, especially since the OP stated his leveling system works.

 

[LIoutdoors]

I appreciate everyone's input and suggestions. It was in fact the battery disconnect. Because this camper is new to me and the disconnect lives in the storage area it never occurred to me that it may have been turned to off. Thanks again to all that replied.

Paul

 

[WhittleBurner]

Thanks for the follow-up Paul