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Subject:Re: Power source for fan on my Dometic fridge under AC power only
From:Mike South
Date:Sat, 30 May 2015 14:44:34 -0500

Thanks!

mike

On Sat, May 30, 2015 at 11:43 AM, Edward Maglott <emaglott3@gmail.com>
wrote:

> 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
>>
>
>