RE: [DML] FanZilla versus the Ebay competitor for Fan Controller Idle St
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RE: [DML] FanZilla versus the Ebay competitor for Fan Controller Idle Stall



Shain, 
I am very familiar with idle stall in which the voltage drops down due to
the fans coming on and the electrical ECU's and car think they have been
turned off. 
Well, I appreciate what your doing but if the problem is masked then it may
never be fixed. You may very well have a bad battery, Bad grounds loose
connections and just improper maintenance causing the problem. 
I hear about spikes as others and the damage they can do but how many times
have ECU's been replaced or any other critical component that have be
contributed to them. As a builder of alternators, I have had 3 come back all
year and 2 were from bearings and 1 was a blown regulator. That's 3 out of
several 100 in the field and only 3 came back all year. 
I think spikes are talked about a lot but very, very rarely do they do any
damage to anything in the car. I also have some spike protection built into
the Fan Fix.
If you want to get rid of the problem all together, then put the new HE fans
on and problem is solved 100% and no Fan fix from anyone is needed.
John Hervey
  
  

-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of
Shain
Sent: Friday, October 21, 2005 10:34 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: RE: [DML] FanZilla versus the Ebay competitor for Fan Controller
Idle Stall

[Moderator Note: DMLers are always welcome to disagree with each other as
long as you keep it polite.  Please be careful about escalating this
discussion.  - Mike Substelny, DML moderator of the week]


John,

I was reply to a post about the topic, which is also in a the subject line
of this discussion, the fan unit on ebay.  I am not trying to bash your
unit, unlike some replies I have received.  I was simply commenting on the
ebay units design of an unknown builder. As well as suggesting a way to
improve on your design, if I saw a particular flaw. What we talk about on
the phone, is off this discussion, thank you.  Current ranging from around
15 amps initial, and 8 amp continuous load, is quite capable of being
sustained on stock wiring.  After all the engineers of the car were not
totally off topic, and knew what the current ratings of the wires in the car
could handle. 

The main problem with the car has never been if the fans come on,  the
simple relay setup in the car allowed for this.  It's the initial pull of
current, in my case 15 amps instantaneous, or in your module 30 amps
instantaneous.  It can damage electrical components, alternators, batteries
and possible stall the car out on warm days with the a/c running.  A large
amount of owners believe that the fan just stop working,  this is not the
case.  My unit attempts to bring the load on the car up and down at a
gradual pace, similar to going from a temperature from 100 degrees, to 90,
to 80....  Similarly, backwards for initial startup.  Yours goes from 70 to
100 degrees.  I don't know about you but your body would like to acclimatize
to a temperature slowly, then being shocked.  This is the same for
electrical systems.

Please do not contribute anymore if it is going to be negative.  I was only
trying to inform a possible buyer of this ebay unit of a possible design
flaw in the unit.  Although I would like to see inside of one.  A while ago
I posted schematics for a free fan sequencer, and would like to see if it
uses my design.  Since I am the only one I know of that has contributed free
information on how to build a fan module.

-Shain 

[long quote trimmed by moderator]




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