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Ah yes, the dreaded F3. <br>
<br>
Loss of communication between the Cu200 controller and the pump.<br>
Grundfos has had this problem on and off for several years now and I
wish they would<br>
correct it once and for all. We've had 9 systems with the F3 fault
and 8 were bad CU200s<br>
and only one was the pump. In all cases, it was a bad modem.<br>
<br>
Other than the F3 troubles, we've had no problems with the SQflex
pump line.<br>
<br>
I too am interested in feedback on the Lorentz pump line. We had a
ton of trouble with<br>
them when they were the Regreta pump systems but hopefully they have
improved.<br>
I'm more than ready to try a pump line from a company that's
responsive to factory defects <br>
and feedback from the field. Everything that Grundfos is not.<br>
<br>
Grundfos....are you listening? Hello.....?<br>
<pre class="moz-signature" cols="72">Roy Butler
NABCEP Certified Solar PV Installer®
NYSERDA eligible PV & wind installer
PA Sunshine Program Approved PV Installer
Four Winds Renewable Energy, LLC
8902 Route 46
Arkport, NY 14807
607-324-9747
<a class="moz-txt-link-abbreviated" href="http://www.four-winds-energy.com">www.four-winds-energy.com</a>
Although no trees were killed in the sending of this message,
a large number of electrons were terribly inconvenienced.
</pre>
<br>
On 11/8/2010 7:47 PM, Gary Gordon at SYV Solar wrote:
<blockquote cite="mid:009101cb7fa7$bb019460$4001a8c0@PSW"
type="cite">
<meta content="text/html; charset=ISO-8859-1"
http-equiv="Content-Type">
<meta name="GENERATOR" content="MSHTML 8.00.6001.18928">
<div dir="ltr" align="left"><span class="421043600-09112010"><font
size="2" face="Arial">Wrenches,</font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span> </div>
<div dir="ltr" align="left"><span class="421043600-09112010"><font
size="2" face="Arial">More details on the Grundfos failures:</font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"><font
size="2" face="Arial"> 1st failure 11 SQF-2 w/ 204ft TDH </font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span><span
class="421043600-09112010"><font size="2" face="Arial"> 2nd
failure 6 SQF-2 w/ 220ft. TDH </font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span><span
class="421043600-09112010"><font size="2" face="Arial"> 3rd
failure 6 SQF-2 w/ 253ft. TDH </font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span> </div>
<div dir="ltr" align="left"><span class="421043600-09112010"><font
size="2" face="Arial">All controllers were displaying F3
failures, there was voltage at the well head. Only one
replaced so far and seems to work fine.</font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span> </div>
<div dir="ltr" align="left"><span class="421043600-09112010"><font
size="2" face="Arial">Any ideas or similar problems?</font></span></div>
<div dir="ltr" align="left"><span class="421043600-09112010"></span> </div>
<div dir="ltr" align="left"><span class="421043600-09112010">
<div align="left"><font size="2" face="Arial">Gary Gordon</font></div>
<div align="left"><font size="2" face="Arial">Santa Ynez
Valley Solar</font></div>
<div align="left"><font size="2" face="Arial">P. O. Box 688</font></div>
<div align="left"><font size="2" face="Arial">Santa Ynez, CA
93460</font></div>
<div align="left"><font size="2" face="Arial">805 688-1213</font></div>
<div align="left"><font size="2" face="Arial"><a class="moz-txt-link-abbreviated" href="mailto:Gary@SYVSolar.com">Gary@SYVSolar.com</a></font></div>
</span></div>
<br>
<div dir="ltr" class="OutlookMessageHeader" lang="en-us"
align="left">
<hr tabindex="-1">
<font size="2" face="Tahoma"><b>From:</b>
<a class="moz-txt-link-abbreviated" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">re-wrenches-bounces@lists.re-wrenches.org</a>
[<a class="moz-txt-link-freetext" href="mailto:re-wrenches-bounces@lists.re-wrenches.org">mailto:re-wrenches-bounces@lists.re-wrenches.org</a>] <b>On
Behalf Of </b>Mike Nelson<br>
<b>Sent:</b> Saturday, November 06, 2010 10:07 AM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Grundfos<br>
</font><br>
</div>
<div>Doug, </div>
<div>Thanks for the feedback. I have to install the monoflo,
because it was purchased 2 summers ago, but the customer didn't
have the site work done to install the pump. This summer the
site work was finished and now the customer is ready to have the
system installed, so wish me luck!</div>
<div> </div>
<div>DC Power is getting out of the pumping biz, so is Wholesale
solar up north, hopefully Solar Depot will remain in it. Our
only other option is to go through the plumbing supply houses.</div>
<div> </div>
<div>I hear the bugs are being worked out of the Lorentz pump
line, anyone have any experience with them?</div>
<div> </div>
<div>Mike Nelson</div>
<div>MD Electric & Solar</div>
<div>Gualala, Ca.<br>
<br>
</div>
<div class="gmail_quote">On Sat, Nov 6, 2010 at 7:45 AM, Doug
Pratt <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:dmpratt@sbcglobal.net">dmpratt@sbcglobal.net</a>></span>
wrote:<br>
<blockquote style="border-left: 1px solid rgb(204, 204, 204);
margin: 0px 0px 0px 0.8ex; padding-left: 1ex;"
class="gmail_quote">
<div link="blue" vlink="purple" lang="EN-US">
<div>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);
font-size: 11pt;">Mike, from another Mendo native,
don’t do the Monoflo. DC Power is getting out of the
pumping biz, and we’re the only Monoflo distributor in
the US. Our experience with Monoflo hasn’t been good.
We’ve seen a number of pump failures recently, support
from the manufacturer is pretty thin, and
troubleshooting in the field is poorly developed and
documented. Basically it’s… pump not working? Try
plugging in a new controller. Still not working? Plug
in a new pump. Dealers don’t keep expensive pumps on
the shelf in case of breakdowns, so repairs usually
end up taking weeks. Not good for dealer/customer
relations!</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);
font-size: 11pt;"></span> </p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);
font-size: 11pt;">DC Power is getting out of water
pumping because we just don’t have the technical
bandwidth anymore. We’re being pressed so hard by the
rapidly-expanding grid-tie market that our tech
support crew is getting loved to death. There’s no
time. I’m sorry to see it go, I found water pumping
projects challenging and interesting, but the tech
cloning project has hit some snags.</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);
font-size: 11pt;"></span> </p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);
font-size: 11pt;">From a sales perspective, the
Grundfos SQ Flex was the best of the lot. We heard the
fewest problems from them, and those problems were
usually on the surface (the CU200 control).</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);
font-size: 11pt;"></span> </p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);
font-size: 11pt;">Doug Pratt</span></p>
<p class="MsoNormal"><span style="color: rgb(31, 73, 125);
font-size: 11pt;">DC Power Systems </span></p>
<div class="im">
<p class="MsoNormal"><span style="color: rgb(31, 73,
125); font-size: 11pt;"></span> </p>
<div style="border-width: 1pt medium medium;
border-style: solid none none; border-color: rgb(181,
196, 223) -moz-use-text-color -moz-use-text-color;
padding: 3pt 0in 0in;">
<p class="MsoNormal"><b><span style="font-size: 10pt;">From:</span></b><span
style="font-size: 10pt;"> <a
moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>
[mailto:<a moz-do-not-send="true"
href="mailto:re-wrenches-bounces@lists.re-wrenches.org"
target="_blank">re-wrenches-bounces@lists.re-wrenches.org</a>]
<b>On Behalf Of </b>Mike Nelson<br>
<b>Sent:</b> Friday, November 05, 2010 5:37 PM<br>
<b>To:</b> RE-wrenches<br>
<b>Subject:</b> Re: [RE-wrenches] Grundfos</span></p>
</div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">I have also installed several
Grundfos SQ Flex submersible well pumps, and had
trouble with them, primarily with the control systems,
the low water shut off sensor has failed on several
pumps, and the CU200 control boxes have failed. The
pumps themselves have held up so far, and seem to be
very efficient. I wish there were more solar direct
well pump options, I've tried the ETA pumps, the
Sunpumps (which are great for low head, low flow) and
am about to try a Monoflow. Any other thoughts?</p>
</div>
<div>
<div class="h5">
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal">Mike Nelson</p>
</div>
<div>
<p class="MsoNormal">MD Electric & Solar</p>
</div>
<div>
<p style="margin-bottom: 12pt;" class="MsoNormal">Gualala
Ca.</p>
</div>
<div>
<p class="MsoNormal">On Fri, Nov 5, 2010 at 4:40 PM,
Gary Gordon at SYV Solar <<a
moz-do-not-send="true"
href="mailto:gary@syvsolar.com" target="_blank">gary@syvsolar.com</a>>
wrote:</p>
<div>
<div>
<p class="MsoNormal"><span style="font-size:
10pt;">Wrenches,</span></p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:
10pt;">I set up the PV arrays for six
Grundfos SQ Flex submersible well pumps on a
cattle ranch. The first three have failed
(in exact order of installation) in about a
year. Anyone else experiencing similar
problems? I had always heard great things
about their equipment, is it time to look
elsewhere? Where?</span></p>
</div>
<div>
<p class="MsoNormal"> </p>
</div>
<div>
<p class="MsoNormal"><span style="font-size:
10pt;">Gary Gordon</span></p>
<p class="MsoNormal"><span style="font-size:
10pt;">Santa Ynez Valley Solar</span></p>
<p class="MsoNormal"><span style="font-size:
10pt;">P. O. Box 688</span></p>
<p class="MsoNormal"><span style="font-size:
10pt;">Santa Ynez, CA 93460</span></p>
<p class="MsoNormal"><span style="font-size:
10pt;">805 688-1213</span></p>
<p class="MsoNormal"><span style="font-size:
10pt;"><a class="moz-txt-link-abbreviated" href="mailto:Gary@SYVSolar.com">Gary@SYVSolar.com</a></span></p>
</div>
</div>
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