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Topic: Generator only powering one leg? (Read 482 times) previous topic - next topic

Generator only powering one leg?

Lost power at the CG this AM and Auto Gen Start started the generator as I was making coffee.  Looked a the Power Line Generator and this is what I saw - Attachment.  Before when I started the generator I saw voltage on both lines.  Why only one this time?  Any thoughts would be appreciated. 
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320

Re: Generator only powering one leg?

Reply #1
Start by flipping OFF and back ON the on-generator breakers.

If that doesn't do it, and you are safe working around 120 VAC, I would check for power in the ATS at both L1 and L2 hots to neutral IN from generator and OUT to breaker box.  If no 120 VAC on one of the legs at the ATS, check for wire connections between generator and coach.

Brett
Brett Wolfe
EX: 1993 U240
Moderator, ForeForum 2001-
Moderator Diesel RV Club 2002-
Moderator, FMCA Forum 2009-2020
Chairman FMCA Technical Advisory Committee 2011-2020

Re: Generator only powering one leg?

Reply #2
Also check the 2 breakers at the foot of the bed that are used by the powerline monitor.  As breakers age, they do get weak and trip easily, sometimes due to heat and vibration.  We have had to replace 3 of ours (available at Lowes) - coincidentally the lowest ones in the main box closest to the engine heat - and at least one was connected to the powerline monitor.
Learn every day, but especially from the experiences of others. It's cheaper!  - John C. Bogle

2000 U320 36' non-slide / WildEBeest Rescue
2003 U320

Re: Generator only powering one leg?

Reply #3
Thanks for the responses.  Sorry I didn't get back here sooner.  As we were on our way out today I flipped the breakers on the front of the generator.  Got power on both legs.  Thanks again.  :D
Scott & Carol Seibert
2001 42' double slide U320 - Sold
Previous - 2002 36' U320