This issue seemed to have started without any suspected cause.When using my onboard 7000w Onan gas generator, one of the two breakers would trip when using no more than we typically use.I the tried a similar size portable generator and am getting the same problem.At the present time I not able to connect to shore power.Last used the onboard genset two days ago and all was OK. So what, all of a sudden, might be causing this issue?Thanks!

What is on the 'circuit' that is tripping......what stops working?Same problem using a different gen so issue is NOT with gen....it is something in MHWhat size circuit breaker is tripping?Fridge electric element Water heater electric elementA/C Unit Fan motor...compressor motorConverterMicrowaveANY 120V LightingANY Items plugged into an outlet When CB trips something AC stops working???????

Know which circuit breaker that is tripping may help.

Same as always, getting info like pullin teeth

Without more information, it is hard to tell.I would check the neutral connections in the 120/240 volt power distribution panel.Get some electrical de-oxidation grease before you start.Disconnect from AC power source.Remove cover from AC power distribution panel.Look in the back of the box for where the neutrals connect. (white wires)Disconnect each one on at a time. Clean the buss bar and wire. Cut it back if it is real bad.Apply a liberal amount of de-ox compound and re-terminate.

Like Old-Biscuit says, first rule of troubleshooting, ask yourself "what is not working" and work backwards from those items. The circuit breaker can be tripping from something as simple as a loose wire connection. I say simple but if fact these can very hard to find. Most of your 120v is for outlets or heating elements. If your tripping a breaker at the gen-set you'll have a large search area. For a gen-set breaker try turning off all breakers in the panel. Gen-set should run fine. Then one by one turn on a breaker, start with the mains. When you trip the breaker you've found the circuit with the problem (not saying you can't have more than one). Now you have to check everything on that circuit. Don't forget to check the wiring connections on the back side of the breakers. If it's a panel breaker this helps narrow down your search. A 50 amp system can just be one side which helps eliminate half of your system. Of course a system breaker like for a AC unit will require checking out that particular appliance. For outlets, a quick visual look at each outlet for a scorched spot or maybe it will smell burnt. I have replaced several bad GFCI outlets. Check things systematically, start with the outlet farthest from the box and work back. With the breaker off (CHECK WITH A METER THAT NO POWER IS PRESENT) pull out the outlet and check for loose wires, scorched spot, melted plastic etc.Average problems take more time to find than to fix. I hope this makes sense and is at least as clear as mud. Good luck and be safe.

Circuit breaker tripping | Good Sam Community

NoSnowInAZ
Explorer
Oct 14, 2015
OK - finally hooked up to shore power. Everything operates fine with the 50 amp service - nothing tripping. So....breakers were tripping when only being powered by gensets (there were two different gensets and both were tripping one of the two 30 amp breakers on the gensets).
So what could be causing the tripping with only the gensets?
enblethen
Nomad
Oct 07, 2015
So it is the genset breaker on both the on-board and a portable using the shore power cord.
Turn off all breakers in the rig. Start genset and let it warm up for a few minutes.
Turn on genset breaker or make sure it is set.
Does it trip?
No, turn on main breaker in 120 volt AC panel in rig.
If genset breaker does not trip turn on the branch breakers one at a time to see if any breakers trip and identify what is connected.
Yes, genset trips, locate your transfer switch and look for damage inside.
NoSnowInAZ
Explorer
Oct 07, 2015
Will be getting shore power connected this Friday
NoSnowInAZ
Explorer
Oct 07, 2015
Of the two 30 amp breakers on the genset it is the bottom one tripping
NoSnowInAZ
Explorer
Oct 06, 2015
RJsfishin wrote:
What part of "he doesn't know" don't we understand ? :)

Thanks Rich - lots on my non-RV plate today but will get back to everyone ASAP. Thanks for hanging in there for me!
RJsfishin
Explorer
Oct 06, 2015
What part of "he doesn't know" don't we understand ? :)
NoSnowInAZ
Explorer
Oct 06, 2015
enblethen wrote:
OP:
It would help to know what breakers are tripping.

Will do
enblethen
Nomad
Oct 06, 2015
OP:
It would help to know what breakers are tripping.
NoSnowInAZ
Explorer
Oct 06, 2015
Actually I'm waiting to be hooked up to shore power to see if there's any change. Most likely there won't be as I was getting the same symptom with two gensets - will let you know - that said, many of the responses were way above my non-electric mind! But will let you know what I discover - thanks to all to this point
Old-Biscuit
Explorer III
Oct 05, 2015
Hello OP.........any thing :H

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