Flyfasteddie wrote:
At least on my '91 Ford chassis, the push button "emergency start" relay would engage anytime you turned the key - in the 'on' and 'start' position.
The main reason is I'm usually boondocking; so the last thing I want to do is leave early in the morning with a heavily drained house battery and as soon as I start to crank the engine I'm connecting the lower voltage house battery to the chassis battery which is now sending a bunch of amps to the house battery instead of going to the starter
I think you're mistaken, when the key hits the start position the only thing getting power is the starter and ignition circuit. Your headlights, wipers and everything else go dead until the key returns to the run position.
If your motorhome was not changed by a subsequent owner it should have a 100 amp alternator that is designed to take a big load like that.
