RE: [DML] Re: Fanzilla Failure???
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RE: [DML] Re: Fanzilla Failure???

Jumping the otterstat sends a signal to the Fanzilla as if the car was hot. 
In response, the Fanzilla should sequence the fans on. Jumping the otterstat 
is just a convenient way of simulating a hot car so that the Fanzilla will 
attempt to operate the fans. Since one fan does go on in response to jumping 
the otterstat, we know that the Fanzilla is seeing this "signal". If only 
one fan operates, there are a few things that could be wrong:

1. One of the fuses in the Fanzilla could be blown. (But you checked that 
and they both seem to be okay. To be sure you can swap the Fanzilla fuses in 
their holders to confirm that just one fan comes on. If it is the SAME fan, 
then both fuses are okay. If it is the OTHER fan, then one fuse just LOOKS 
good but is actually blown.)

2. The Fanzilla could have an internal failure.

3. The wiring to the non-running fan could be bad. (Open)

4. The fan itself could be bad.

Joe Kuchan

>From: "Steve" <steve@xxxxxxxxxx>
>Reply-To: dmcnews@xxxxxxxxxxxxxxx
>To: dmcnews@xxxxxxxxxxxxxxx
>Subject: [DML] Re: Fanzilla Failure???
>Date: Wed, 19 Jul 2006 03:04:26 -0000
>OK, I checked it but I am still confused. Jumping the otterstat had
>no effect. Still only the right fan on. But I went back to the fan
>and metered the connections. Using both the fans ground and a known
>good ground, No voltage at fan connection. I thought the Fanzilla
>was to make the fan start delayed from each other so they don't come
>on at once. How does jumping the Otterstat change that? Any
>additional thoughts?
>--- In dmcnews@xxxxxxxxxxxxxxx, "joekuchan" <josephkuchan@...> wrote:
> >
> > If it turns out that the Fanzilla has in fact gone bad, contact
>me. I
> > can provide a state of the art replacement for less than what you
> > originally for the Fanzilla.
> >
> > Joe Kuchan
> >
> > --- In dmcnews@xxxxxxxxxxxxxxx, Chris Almy <chris.almy@> wrote:
> > >
> > > Steve,
> > > I would check the relay sockets the Fanzilla connects to. I had a
> > similar
> > > issue where one of the fans didn't work. Turned out the
>connector that
> > > feeds one of the fans had come loose and was pushed out of the
> > socket when
> > > I plugged the Fanzilla in. The fix was simple, just push the
> > tab back
> > > out on the connector and it will then snap back into place in the
> > socket.
> > > As for the Fan Fail light, it never came on as the Fanzilla only
> > alerts you
> > > to a problem if one of the fuses blow.
> > >
> > > Chris
> > > VIN 4099
> > >
> > > At 07:06 PM 7/16/2006 -0400, you wrote:
> > > >I have been having a problem with the AC not blowing as cold as
> > used
> > > >to. During troubleshooting I found one of the cooling fans (left
> > one) is
> > > >not coming on. I metered it at the fan connection and there was
> > > >voltage. I popped the electronics bay cover and examined the 2
> > fuses on
> > > >the fanzilla and they are both good. I even tried switching
>them. Do
> > > >fanzillas go bad? What do I trouble shoot next?
> > > >
> > > >Steve
> > > >#2700
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
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