Emergency Electrical Help Please !

McKenziek wrote:
I also have no lights inside the coach. I checked all resettable breakers and nothing seems to help.

Any suggestions on trouble shooting would be helpful

2005 Monaco diplomat

Most lights in RVs are 12 volt and would be on a fuse rather than a breaker. If your battery is charged and no fuses are blown, your lights should work, whether or not you are plugged into shore power.

If your battery is low or discharged and your lights don't work, I would say you may have a bad converter. OTOH, if your transfer switch is stuck with both sides of the system disconnected, it could prevent the AC power from being accessible via shore power or genny. That would also prevent your converter from providing 12V power to the lights.

First thing to check is whether there is power at the AC outlet your coach is plugged into (or at the genny output). If there is, but no AC power is available in the coach, check for 120V at the transfer switch. If there is no power there, there is a break in the circuit between the power source and the transfer switch. If there is power at the transfer switch but not at the breaker panel, I would say your transfer switch is faulty.

Good luck with this problem. There's nothing quite as frustrating as technology that doesn't work as expected.

After resting for awhile I got lights but they are very dim. Alarm could be for low voltage maybe.

Gennie breaker is good
GFI is good

Sorry I don't have any insight beyond the following:

1) I always shut down all the loads before starting the generator. Let the generator warm up a bit, then load it up (though I have flash cut before unintentionally without issue)

2) When the A/C died, was the generator still running? If so, does the generator itself have resettable breakers on it? Mine does, in addition to the breaker panel inside (but my rig is much older so YMMV)

3) Some 12V things working but not others is odd and seemingly unrelated to your 120V issue. Check your 12V fuses and breakers (if you have any).

4) I'd check for whatever your mechanism is for switching between 120V from the inverter, genny and shore power (transfer switch)

5) I'd start with finding where the alarm from under the dash is coming from. Sounds like a clue.

Hmmmm, some 12 volt items work like the fridge, slide outs, inverter is humming, etc. So now im thinking converter but now idea where it is on this coach.