[Richard and Rhonda]

Ted.

Glad you guys made it. As usual Michael gave some great advice.

On a slightly more generic approach to the chassis voltage issue. If you don't have a good voltmeter with current measuring capability, then get one. You will use it often as long as you own a bus. Start at the alternator with the engine at high idle. You should have about 13.7 volts or so. Now work your way physically along the wiring. Make yourself a sketch of what you find. At every junction measure the voltage. When you see a big drop you are staring at your problem. Work the wiring until you get all the way back to the chassis batteries.

As stated before, the chassis charging circuit is much more complex than on a car. Primarily because you are supposed to have the ability to charge the house batteries automatically while the alternator is alternating, but the house batteries use an isolation device so that when you drain them you don't drain the chassis batteries and leave yourself stranded.

And let us know your progress, we love sticking our noses in other people's coach issues.