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You can replace the internal SW fans (if the fans themselves are the
problem.)<br>
<br>
BUT the replacement fans must draw approximately the same current as
the<br>
original fans because they are powered by a current source rather
than voltage<br>
source. i.e. If you use a fan that draws less than the fan
current, the voltage<br>
could rise too high. Some 12V fans don't have a problem running at
say,<br>
20+ volts DC BTW so might not be that big of a deal.<br>
<br>
boB<br>
<br>
<br>
<div class="moz-cite-prefix">On 11/3/2016 7:57 AM, Jay wrote:<br>
</div>
<blockquote
cite="mid:475C631C-F50E-4FB3-B8CE-9724AD3304F2@gmail.com"
type="cite">
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charset=windows-1252">
<div>Hi Mac</div>
<div><br>
</div>
<div>No don't recommend replacing internal fans </div>
<div><br>
</div>
<div>But I have installed external 120v muffin fans on the ends. </div>
<div>Seal up the vents around the ends so it pulls air through. </div>
<div>Hook the fans to the genny input. </div>
<div>Quick and works well</div>
<div><br>
</div>
<div>Jay</div>
<div><br>
On Nov 3, 2016, at 7:09 AM, Mac Lewis <<a
moz-do-not-send="true" href="mailto:maclewis1@gmail.com">maclewis1@gmail.com</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<div dir="ltr">Hello Wrenches,
<div><br>
</div>
<div>I recently assessed a 22 year old Trace 4024. During
bulk charge mode, I noticed that the charge would go from
about 18A down to 5-6A every 15-20 seconds, and then
repeat the cycle. I observed this for about 5 minutes
relatively consistently I also noticed the body of the
4024 was very hot, and I couldn't feel a fan moving air
through it. </div>
<div><br>
</div>
<div>I put a fan on it and blew air over the body of the
inverter, trying to direct it through the machine. While
I did that, I never observed it drop out again over about
5 minutes, so I'm assuming that there is an internal
cooling fan that has gone out.</div>
<div><br>
</div>
<div>It's been quite a while since I opened one of these
up. Does anyone know what's involved in replacing a
cooling fan on one of these? Is it worth it on a 22 year
old inverter?</div>
<div><br>
</div>
<div>Thanks in advance<br clear="all">
<div><br>
</div>
-- <br>
<div class="gmail_signature"
data-smartmail="gmail_signature">
<div><br>
</div>
<div><font face="'times new roman', serif"
color="#305A78"><br>
</font></div>
<div><br>
</div>
Mac Lewis<br>
<br>
<span style="font-family:'Times New
Roman';font-size:medium;color:rgb(255,153,0)"><b><font
face="Arial, Helvetica, sans-serif" size="3">
<p align="left"><font face="Verdana, Arial,
Helvetica, sans-serif" color="#000000"><span
style="font-size:small"><span
style="font-family:arial;font-weight:normal;color:rgb(48,90,120)"><font
face="'times new roman', serif">"Yo solo
sé que no sé nada." </font><span
style="font-weight:700;color:rgb(104,104,104)"><font
face="'times new roman', serif">-Sócrates</font></span></span></span></font></p>
</font></b></span></div>
</div>
</div>
</div>
</blockquote>
<blockquote type="cite">
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