No 12 volt power: solution found
Had a 12 volt electrical issue with the trailer. It wasn’t detected until a few days ago when I happened to check the Systems Monitor over the stove. No lights. Same with the red pump switch. No pump. Same with the hot water switch, and the cigarette lighter fixture. No current.
Checked for blown fuses; there were none. The battery was all good. What followed was a vexacious hunt for answers. Except for these certain 12 volt applications there was current, ceiling lights, when using shore power. Pulled out the WFCO operators’ booklet to troubleshoot but still got no joy.
Out of options. I call Corrales Dave, my guy. Dave got his 19 a month before me. It turns out he had a similar problem. No, it’s not a bad ground. Not the battery on/off switch, and not a bad WFCO distribution center. It is a bad inline circuit breaker. This is a little 30 Amp box the size of four sugar cubes that the red battery cable coming up from the floor connects to on its way to the WFCO. A four dollar item. Kind of hard to see and reach but easy to replace so long as you use a square screwdriver.
"A billion here, a billion there...add it all up and before you know it you're talking real money." Everett Dirkson