My 82 Westfalia did'nt have a fridge relay and the battery went flat several times until I found out about the relay and installed one. Wired the ground to the frame. Works like it should, 14 years now. I never heard about the starter solenoid used as ground til now. Robert 1982 Westfalia --- On Tue, 6/9/09, mark drillock <mdrillock@COX.NET> wrote: > From: mark drillock <mdrillock@COX.NET> > Subject: Re: Help with 12v Dometic wiring > To: vanagon@GERRY.VANAGON.COM > Date: Tuesday, June 9, 2009, 7:15 PM > Yes, that is right. The starter > solenoid coil is the ground for the > fridge relay and if the red/black wire is pulled off the > starter the > fridge relay won't work even with the engine running, since > it won't > have a ground anymore. > > Not all years used the starter as the ground for the fridge > relay so of > course the ones that don't will still work with the > red/black wire > pulled from the starter. The fridge relays that use the > starter as > ground have a small red/black wire attached to relay pin 85 > or 86. > AFAIK, all the aux battery relays used the red/black to the > starter as > ground. > > Mark > > Scott Daniel - Turbovans wrote: > > well that last scenario sounds nasty. > > > > ok, tell me this .......... > > if the starter trigger wire fell off the solenoid , > > and you roll started the van ......and the > engine fired and the alt. > > started charging, > > would the fridge relay then not be able to energize ? > > ( due to lack of esoteric connection to the fridge > relay from the starter ) > > Scott > > > > ----- Original Message ----- From: "mark drillock" > <mdrillock@COX.NET> > > To: <vanagon@GERRY.VANAGON.COM> > > Sent: Tuesday, June 09, 2009 6:36 PM > > Subject: Re: Help with 12v Dometic wiring > > > > > >> I'm right in this case. The ignition key switch > does nothing to the > >> circuit except when in the far start position it > puts 12 volts on the > >> relay "ground" while cranking. This keeps the > relay from activating > >> during starting. Some years use this "ground" for > the fridge relay and > >> some don't. This is a redundant feature since the > blue wire won't > >> trigger the relay anyway until the engine starts > and the alt light > >> goes out. > >>................................... > |
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