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dentmac · 04-14-2013, 11:40

Hi,
My vote would be that they do. I just started to look at the Webasto system before the coach was taken. The manual is generic I believe and I don't think we have some of the "options". See the "Heating " section in the manual posted on the site. There is no separate water system as it uses the engine coolant.
I found it frustrating that the entire engine and rad was also heated whenever you wanted the interior of the coach heated. It also ran the burner when on the road. I left the Webasto on one cool morning and drove throught the CA mountains. Coming down Montazuma hill, we pulled over for a view. I walked beside the coach and the burner came on. I surmise that the rad cooled during the descent and the webasto came on to re-heat it.. Just dumb.
I never got to look for the main board and the "lights". Apparently BB did some modifications to my Webasto when it was first taken to Fort Valley. My pictures show some plumbing changes ,but I have no idea what.