Grounds are good, one battery was fine 12.6v and the other was at 2.6v so I refilled the one, waiting to test it. Could it possibly be the battery isolation switch? I checked all fuses on DC panel except for the master. The master switch is something like a relay? I can’t tell but I’ve never...
Switched my bilge pump out, Ericson 32-2 and now my instrument panel (bilge, cabin lights, master switch, blower etc) no longer works. What the heck happened? It was two wires, snip snip, splice splice, now nothing works...help?