Mystery fuses, 2007 Challenger 180 SE

[CREWZN]

Hello, I've had my 2007 Challenger 180 SE for 5 years now about 250 hours on it.

I have 4 fuses near my disconnect switch 2 are 20 amp on heavy red wires, assuming these go to engine and vehicle fuse blocks.

There is also a 3 amp and 1 amp that always have power even when disconnect is on off setting.
I am assuming (I didnt test therapy as it started raining) the 3amp is for the bilge pump.
Does anyone know what the 1amp fuse is for ? I had replaced this several years ago and it has been good since then. But now every one I put in continues to blow.

I started looking because I I got a P0505 error code and was looking for an answer on that as well. Could it be related?

Thanks
C

 

[CREWZN]

I have read, in another thread that others have these fuses as well.
Does no one know what they do?

 

[Sofla]

The 1a fuse feeds your float switch. And the three amp is the always hot line feeding your bilge pump

 

[CREWZN]

Thank you so much!
I will do a search on the float switch.