Date:         Sat, 30 May 2015 12:43:35 -0400
Reply-To:     Edward Maglott <emaglott3@GMAIL.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Edward Maglott <emaglott3@GMAIL.COM>
Subject:      Re: Power source for fan on my Dometic fridge under AC power only
Comments: To: Mike South <msouth@gmail.com>
In-Reply-To:  <CAN483vfmfvvEV0dBWV-prdWE=wGOuesBq7G3MWnLtvkd5cr23Q@mail.gmail.com>
Content-Type: text/plain; charset=UTF-8

No.  the fan is powered by the 12V supplied to the fridge.
Edward

On Sat, May 30, 2015 at 12:07 PM, Mike South <msouth@gmail.com> wrote:

> Hi,
>
> [EDIT: Short version--does the fan on the fridge get power when the 12v is
> unplugged but the fridge is plugged into, and running on, AC power?  That's
> what I want to know, details are below.]
>
> I've done a bunch of the refurbishment/improvement stuff that you can find
> in various places online, and my fridge seems to be working pretty well.
>
> The last thing I want to do before putting it back in is to hook up an
> external and internal fan.
>
> The fridge is on a workbench, and I plugged it into AC power.  Here is a
> picture for reference:
>
> http://imgur.com/rrB9Ayd
>
> The yellow and blue wires lead to the stock fan.   One wire (I think the
> yellow one) goes to a thermocouple that completes the circuit (and turns
> the fan on) when the heat-dissipating fins on the back of the fridge warm
> up.
>
> However, under AC power, I'm not detecting a voltage on either the blue or
> the yellow wire.
>
> If I'm understanding how the fan works, one of those wires should be
> constantly at 12v.
>
> However, I don't know if this is true when it's only plugged in to AC
> power.  Maybe the fan is powered by the 12v connection even when the fridge
> is switched to be running on AC?
>
> So....that was a long way of asking that question, I'll put the question at
> the top now.
>
> mike
>