Alex F
Well-Known Member
- Nov 14, 2006
- 9,166
- Boat Info
- 2005 420DB with AB 11 DLX Tender, Raymarine Electronics (2x12" MFDs) with Vesper AIS
- Engines
- Cummins 450Cs, 9KW Onan Generator, 40HP Yamaha for tender.
Hi Alex: Today I experienced a problem on line 1 of my AC electrical system. I was at anchor on battery and started the genset to prepare for my return trip back tp my slip. I noticed that the voltage on line i was 62 volts and line 2 read normally at 120vac. No items on the line 1 line could be powered. After I got situated back in my slip I plugged in shore power and line 1 functioned normally at 120 VAC. I cycled all CB's and solenoids in the salon, transom hatch back and in the covered box in the bilge without any change. It is interesting that I am getting one-half the voltage output from the genset only on line 1 and no issue when on shore power. Do you have any ideas or suggestions?
John
2006 44 DB
Hey John,
I assume your question was addressed to me. Based on how I understand your symptoms, the issue with line 1 is only when using the generator. If that's the case, the first thing I'd do is to check voltage produced by the generator at the main breaker. I'm referring to the breaker located on the top left (STBD side), when looking at the generator facing at the stern of the boat. As I recall, you need to remove 4 #10 bolts that hold the metal cover. Then, remove clear plastic cover to get the the breaker contacts.
Check the voltage going to the breaker and coming out of the breaker.
While you're at it, check the Hertz. You should see steady 60Hz.