2001 Safari Zanzerbar rear Has no power

[Dinellest]

So this spring I noticed that the rear of my motorhome had no power, the lights won't turn on and the outlets have no power. In addition the slide won't move out or in.

I have replaced the GFI, in the kitchen, and will test the one in the basement as well.
No power to the fuse panel 😕
The salesman switch is new last year.
Tested the mega fuses and no power

What are my next steps?

Thank you.

Stephen and Heather

[jacwjames]

The 12 volt and 120 volt are different systems.

For the 12 volt I'd start at the batteries and check voltage across all devices. Even if you replaced the salesman switch last year doesn't mean it didn't fail again. On my coach I also have several circuit breakers in the 12 volt side. You should be able to find the 12 volt wire that feeds the fuse panel and make sure it has voltage.
On the 120 volt side, on my coach I have 2 circuits to and from the inverter with circuit breakers on the inverter, you might check this. Then start check voltages (if you are comfortable doing this) in the main service panel, make sure the breakers are passing power.