Oman 7500 Diesel Generator Issues

Trouble shooting an intermittent electrical problem by "giving it a tune up and go over everything" may end up being VERY expensive.

Much smarter to go through the trouble shooting tree for exactly what did/did not work and then address THAT.

Well now I'm just dumbfounded. I hooked my coach to shore power to make sure everything was working correctly there, it was. So I unhooked shore power and restarted the genny and it's like nothing was ever wrong everything is working as it should,I'm so confused it doesn't make any sense to me. My son took pictures of all my equipment for me he's at work so as soon as he gets the time to send them to me I'll post them. Maybe someone will be able to tell me what happened. I'm going to call out a mobile tech and have him give it a tune up and go over it to make sure everything is fine. I will post the results hopefully this forum thread will be helpful to someone else some day. Thank you all for everything. Cody & Jodi Cooper

Have him/you read this thread and answer the questions asked-- will make it easier for us to help you.

Most require no tools or skill-- just "what is working and what is not".

Converters or inverters/chargers are not that easy to troubleshoot even for professional electricians.
I think you have 2 choices right now.
1 hook up battery charger to your batteries and see if the inverter will work at full charge
2. call RV technician familiar with converters.

I'm going to take some pictures of the equipment I have. It's frustrating that I don't understand this stuff and I feel like an idiot thank all of you for your help and suggestions you have no idea what this means to me. These pictures may take a bit as I am disabled and don't move so well these days my son will be here today if nothing else I can have him get the pictures for me. Oh by the way I'm not sure if I put this information on my initial profile or not but I have a 2005 40' Coachman Sportcoach Elite 401 TS

your diesel generator puts out 110v
just like shore power, the utility company at home

it is the charge converter or ( inverter-converter combo ) does the battery charging

battery voltage dropping means NO charging
blown fuse ?
bad unit ?
tripped circuit breaker in the breaker box OR on the unit ?
equals NO 110 to the device so it does not have power to charge your batteries

we are not clairvoyant , we can NOT see your equipment

you need to answer the exact questions, not in direct guestimations

does your air conditioning run, your MW work

your answer about (1) item plugged in
sounds like you tripped a breaker and the (combo-inverter-ccharger) is now using invert mode to make 110 on the outlets, and it is using your batteries instead of charging them

please post
make model year of RV
make model of inverter or converter

Diesel do not have spark plugs.
Quiet Pack has a generator inside and uses an electronic governor to maintain voltage and frequency. So, no Inverter / Charger.

Did the Gen set run the loses power / or did it not have power when you started it? Did you see if you have a ATS, automatic transfer switch?

Since you stated your batteries are not charging is this on shore power also or just generator? Have you tried shore power?

Have you checked the circuit breaker on the gen set?

The bigger power is, not knowing what Rv you have, Inverter / Charger installed in the Rv. So, there is nothing most of us can do, because we cannot do any research on your Rv. No you can logon to IRV2 and search the motorhome specific forums.

We would really like to help.

Answering my "no technical experience needed" questions will help!

What does "Oh and yes the plugs work fine when the genny's running as long as you only have one little thing plugged in" mean