WFCO Controller Repair

[gypsmjim]

I have been having issues with battery charging and fuses. I posted this question before and have gone thru the suggestions.

I'm now thinking I should replace the controller. How difficult is that? Do I need an electrician? If I can find a new unit of the same model, how many wires are involved? Is it just a matter of swapping out wires from one unit to the other?

[Ukrainian_Kozak]

You don't need an electrician to replace controller if you are comfortable working with 120V wires and know how to twist join and splice, but you are up for some fun. The number of wires you can calculate by number of fuses and breakers in both 12 and 120 sides. it'll be 3 wires per 120 breaker (one Romex with ground, neutral and phase) and 1-2 wires for each 12V fuse (one for chassis connected ground or two for in-wall wires for lights and other stuff) plus 2 fat wires from battery and one ground. In addition you may need to deal with few more wires for solar, generator and inverter if you have those.
So, doable, but plan to spend a full day on it, and make sure to mark all wires and disconnect all live sources before you start (battery, shore power, solar)

Jay flight Slx 174BH Baja

[gypsmjim]

That's what I was afraid of. I was hoping it would be a simple single disconnect.....LOL.