Originally Posted by Lake-Effect
Verbal description is woefully inadequate at presenting all the required info for this sort of issue.
At a minimum, please state exactly where your meter probes are connected when you have these readings.
A partial schematic drawing would help too, but if you had one, you'd probably already have the answer too
I tried to keep the verbal description as short as possible, but you're right, when it comes to electrical
issues, there can really never be enough information.
Accordingly, I have uploaded a video to youtube. Sorry about the quality. Digital cameras have really lousy performance in low light conditions. Hopefully the video should add enough information to answer some of your questions.
GOPR0094 - YouTube
The meter was connected at the DC pigtail available at the outlet (I know, this isn't exactly up to ABYC standard, but it's a better than what was there before).
No schematic. I've been finding lots of wiring issues from previous work done by other owners (I had to get the compass
LED unwired from the engine
panel as it required the engine
ignition key to be turned to the on position... along with the requisite engine warning buzzer blaring away in the background). My general impression is that they half-assed just about all of the non-factory wiring, turning a perfectly good, standards wired panel into something that probably verges on dangerous. It doesn't help that a genset was removed recently.
I probably need to look through my copy of Boatowner's Mechanical and Electrical Manual to understand how the AC system should be grounded. It had a genset, so the electrical system
should have been designed to have an AC ground at sea and I suspect they took the short cut of connecting shore power to a common ground bus bar.