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c210pa18 · 03-30-2021, 11:50 AM

I can't find the two 500 amp fuses and the one 20 amp ATO fuse that are supposed to be on the back to the battery cut-off switches in the battery bay. This is a 2002 Monaco Signature. They aren't on the backside of the switches as it would appear they should be from the owner's manual. Any help would be appreciated

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vito.a · 03-31-2021, 02:52 PM

My owners manual has the same verbiage and diagram. But, as you can see the diagram doesn't match what's really there. The master cutoff switches are not mounted on a metal mounting strip, they are mounted through the battery compartment wall.

I am guessing the large 500amp Buss fuse is on the backside of the cutoff switch but then the problem is access as they are sandwiched in-between the next compartment.

Have you looked up inside there with a good light?
I think the key to finding them is to follow the battery cables where they attach to the back of the switch.

c210pa18 · 04-01-2021, 08:08 PM

I found what looks to be the correct diagram in the files section here for a 2003 Monaco Dynasty Wiring Diagram.pdf In that, there is a diagram that is probably how my coach is wired. It has an 80amp breaker in the house battery line located on the inside wall of the battery box, you can just see it at the right edge of the picture I posted of my battery box. So far a have not found the other breaker for the chassis battery nor the 20 amp fuse that is supposed to be in the solar house battery charge line. I'll keep looking as I think that the 20 amp fuse is blown as there is no voltage on that charge line. I am trying to use that orange wire to charge the house battery from my new solar setup. I'll let you all know if I ever find what I am looking for.

vito.a · 04-02-2021, 12:04 PM

Maybe the solar 20 amp fuse is near the charge controller in the basement?

c210pa18 · 04-02-2021, 06:24 PM

Thanks for the suggestion vito.a, but my solar controller was above the Refrigerator and I have redone all of that. The controllers are now Victron and they are in the basement and I pulled all those solar wires from above the frig down to the basement. The wire that should have that 20 fuse in the line does not have 12 volts on it so I am expecting that the fuse is blown. I did look all around up there above the frig when I moved all that stuff but did not find it there.

c210pa18 · 04-03-2021, 04:26 PM

I found the fuses, They are in the battery box back outside corner the are four there together and the one I suspected was blown. Thanks

vito.a · 04-04-2021, 11:18 AM

Glad you found them.
I'm interested in your solar setup?
How many panels do you have and which Victron controller did you use?
What new wiring did you have to install?

c210pa18 · 04-05-2021, 02:23 PM

On the solar setup, I had 3 small panels up there they were original to the Coach the controller did not work anymore. I pulled all those solar wires down to the driver's side basement just behind the fuel tank. I decided to use one Victron solar (75/15) controller for each of the 3 330 watt panels. I brought new wires down to that location from each solar panel on the roof. This helps solve some of the shading issues as each panel is independent of the others as far as that goes but takes more wire. I don't have that all done yet as I want to set it up for two different battery packs, one flooded cell pack and one lithium Iron pack. So that has yet to be done.