Shore Power Only Works When Engine Is On

adhooligan wrote:
My Class A Southwind has an issue recently that the generator AND shore power will only work if the chassis engine is running. Once I turn off the engine, within 30 seconds any shore power or generator will be cut off and no power is available for the coach.

I swear I answered this on another forum or, at an alternate place on this forum but, I cannot find it in all my answers to questions. Hmmmmm. Wonder where it went????

Anyway, in all my RV life, I've never heard of the ignition of the engine, having any effects on shore power or generator power, operating correctly. My keys to my coach and be in my pocket and, I can still start up the generator and it will power things up just fine. And that includes all outlets that are connected to that system which, is just about all of them.

And that goes for shore power too. My keys can be in my pocket, the engine off and, if I plug into 50A shore power, it goes right to work, powering things up and, supplying all outlets with 130VAC, plus or minus.

This is an amazing issue for sure. For any part of the shore power or, generator power operations, to be tied to the ignition of the main engine, is by far, a new one on me.

Now, I'm only referring to the allowance of 130VAC to be allowed to enter the coach and, be present at all outlets. I'm not talking about Inverter/charger doing its job of charging the batteries or anything like that. That's a totally separate problem. Most large inverter/chargers allow what's called "Pass through" operations when plugged into shore power. That is, they allow incoming VAC to PASS THROUGH the inverter/charger and, proceed right to the 130VAC breaker panel.

The Transfer switch, normally controls where the power to the outlets comes from. That is, if you're "Inverting" (using house battery power for 130VAC) and then, fire up the generator, the transfer switch automatically uses proprietary protocol and, switches to generator power and, the inverter/charger, immediately goes on "standby".

It will operate the exact same, if shore power is introduced while inverting.

But, none of that operation, as far as I know, has anything do to with the ignition of the coach. Now, unless I'm reading the OPs question(s) all wrong, something's really odd here for the ignition of the coach, to shut down shore power or, generator power operations. Hmmmmm.
Scott