Fault Light Blinking

[BigRig]

I think the chassis batteries have a minimum voltage (11.7 comes to mind) to close a relay allowing the house batteries to charge. When you started engine to reposition coach alternator may have charged chassis batteries enough to close the relay. Glad things are charging and you have 12v lighting.

Thanks!! It was a bit nerve racking situation. And I am going to say it was my own fault for not hooking up to shore power. I installed a 50-amp connection in my garage, so when the RV was first in the driveway all was good. When I added the concrete slab in the back of the house to get it behind the privacy fence, all I had was a 110V available. But it worked fine. The 50 amp connection is in the works, it's just the trenching is slow going. In any event the last time I moved the RV back to the new slab; I did not plug in the shore power (DUH). And that is why I was "scrambling" today.

Going to be interesting where we end up tomorrow.

Switching gears on you. Generator question.
I am in the commercial construction business. When we build buildings with emergency generators, they have an "exercise" schedule the Owner's facilities folks have to maintain. ie. the generator is started at some specified interval. My whole house generator is programed to run time the first day of each month. If you do not regularly use your RV generator, does the same principal apply. Seems like it should. I had the generator professionally serviced last month. It was an appointment the previous Owner had. Probably should have asked those folks what they recommend. But did not think of it at the time.

 

[MemoriesByTheMile]

Our Onan 12.5 gen, according the owners manual, is supposed to be run each month for a couple hours with a load.

 

[NWIP]

Recommendation for exercising the generator monthly @ at least 50% load for 1 hour.

 

[Texas Clodhopper]

When you unhook from shore power, watch the house batteries to see if they drop voltage quickly. I'm concerned your batteries may be toast.