Please help, No 12V Power

zghorner

New Member
Joined
Jan 16, 2025
Messages
3
Location
Choctaw, OK
I just acquired my first RV, a 2018 KZ Sportster toy hauler with two slide outs and it has been sitting about 5 years in storage. It is completely dead to the world even after installing a new battery and 30amp "short stop" circuit breaker/inline fuse that was mounted to the frame near the battery. There is no power getting to the fuse box at all, (The fuse box is located in the wall that separates the cargo section from the one market Linen, if that helps).

I don't see any cut off switch or anything anywhere but am hoping that the issue is something simple like that and my ignorance of these things is the only real problem. It has a cummins generator but i don't see anything around it that would be related...I'm at a complete loss. Also, I do not have access to shore power unfortunately.

Any advice on what or where to look next would be greatly appreciated,

thank you

Layout of toy hauler

1737238948918.png
 
In your Power Center (breaker/fuse box) there are two "Reverse Polarity" fuses out of line wioth the rest of the fuses. They are usually in the 30 to 40 amp range. Verify they are good.
 
There is no battery switch anywhere ? My RV has 2 and did you check the inverter mine has 3 settings on the inverter . on, charge only and off
 
There is no battery switch anywhere ? My RV has 2 and did you check the inverter mine has 3 settings on the inverter . on, charge only and off
What RV do you have?

The OP has a trailer. They normally don't have battery disconnect switches.

And he probably does not have an inverter/charger - just a converter.
 
Thour Outlaw 39QB Tot hauler.. previous owner changed out the stock inverter and battery's. So i have 2 battery switches and lithium batteries.
 

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