We had a similar problem last year. The Hi/Lo switch would come on & off, but the volt gauge showed 27V steady. It was a Vanner control unit. I believe it was $80.00 or so. It is located in the rear engine compartment, on the fire wall.
Senior Member
We had a similar problem last year. The Hi/Lo switch would come on & off, but the volt gauge showed 27V steady. It was a Vanner control unit. I believe it was $80.00 or so. It is located in the rear engine compartment, on the fire wall.
Steve & Rhonda Bennett
Dana Point, CA
92 Marathon XL40
2012 Jeep Rubicon Unlimited
Owner: California Coach Company, LLC
Senior Member
Steve, is this the controller your talking about. I think these are the battery equalizers. Four of them and they all test good.
If there is another Vanner controller, a better description and location would help. My batteries all tested good after being disconnected overnight. A call to Prevost service also mentioned the Vanner controller and said no problem driving the coach if the dash voltmeter stayed below 29 volts.
Still searching for the problem, but so far everything checks out ok.
Senior Member
Ted, I gave you some wrong info. It is located in the rear electrical panel above the engine where your relays & rear junction box is. Mine was at the top of the inside panel. It is about 6" X 4" and is called a Vanner battery monitor.
Steve & Rhonda Bennett
Dana Point, CA
92 Marathon XL40
2012 Jeep Rubicon Unlimited
Owner: California Coach Company, LLC
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