Re: [DMCForum] Climate control fan & hot relays
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Re: [DMCForum] Climate control fan & hot relays
- From: Ryan Wright <ryanpwright@xxxxxxxxx>
- Date: Wed, 18 May 2005 10:45:11 -0700
Thanks Michael & Chris. Yeah, sounds like my fan fail module is screwy
then, or was rewired at some point in time. I'll take Chris' advice
and build a quick link to replace that, and continue with my plans to
replace the other relays & circuit breakers.
One more question for you: Is there any reason to replace the "rpm
relay"? I see that John sells it in a kit with the other modules but
I'm not sure if I need it.
-Ryan
On 5/18/05, Chris Almy <chris.almy@xxxxxxxxxxx> wrote:
> That's right, I forgot about the upgraded fans. In that case, I believe
> replacing the relay, circuit breaker and removing the blue module is
> probably enough.
>
> The reason for the Fanzilla and John's 2x2 fix are due to the high current
> demands of the original fans. The single relay could fail due to the high
> current going through it (both fixes use a relay for each fan). The circuit
> breaker could also heat up and cycle the fans on and off like the other did
> to your climate fan (both fixes use fuse protection).
>
> As for the fan fail light, it should only stay on when one of the fans
> fail. Since you are using a different type of fan, I don't know how the
> blue module would be effected. On a stock setup, it's only normal for the
> light to briefly flash, not stay on when the fans turn on. If I were you, I
> would replace the relay, circuit breaker, and install John's $20 fuse fix
> that replaces the blue module (or build one yourself). That should give you
> plenty of reliability and safety.
>
> Chris
>
> At 09:53 AM 5/18/2005 -0700, you wrote:
> >Chris,
> >
> >I wonder how much of a concern this is now, given that I am using John
> >Hervey's pancake fans which draw much less current?
> >
> >Also, what is the reasoning behind John's 2x2? What benefits does it
> >provide over simply using the "link wire assembly" described in the
> >service bulletin?
> >
> >Lastly, I'm curious to know why the stock behavior is to turn the "fan
> >fail" light on when the fans are on. The words "fan fail" denote a
> >failure, so you would think it should come on only if the fans have
> >failed. Or, they should have worded it, "Fans". All of my passengers
> >require a "No, there's nothing wrong with the fans, it just does that"
> >explanation. :)
> >
> >-Ryan
>
> [Non-text portions of this message have been removed]
>
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