[TR] FW: auto fan controllers

Jeff Scarbrough fishplate at gmail.com
Wed Aug 28 18:52:36 MDT 2019


On Wed, Aug 28, 2019 at 8:05 PM Frank Fisher <yellowtr3 at yahoo.com> wrote:

>
> if controlled by a manual switch on the dash my concern is that a moment
> of forgetfulness will lead to a very quick disaster.
>
>
Using a pair of regular Bosch relays, you could use a momentary switch or
button to latch the fan relay on as long as the ignition was on.  When you
shut the car off, it would reset the system. It would take a second switch
(or button) to turn the fan off if you wanted to do that.  You'd look like
you were driving 007's Aston Martin, though, with all the buttons, so
there's a plus.

Jeff Scarbrough
Corrosion Acres, Ga.
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