[RE-wrenches] grundfos cu200 failure?

[Jay]

Yes. 
And if that light is on it’s supposed to stop pumping. Even if the float was bad or maybe the wires were bad, if the cu200 is seeing a full tank signal it’s supposed to shut off the pump. 
And it’s not. 

I’ve just never seen this failure mode before. 

Jay



> On Feb 24, 2022, at 8:48 PM, Mac Lewis <maclewis1 at gmail.com> wrote:
> 
> 
> Hi Jay,
> 
> Have you ruled out a problem with the float switch/wiring?
> 
>> On Thu, Feb 24, 2022 at 5:13 PM jay <jay.peltz at gmail.com> wrote:
>> HI All,
>> 
>> Has anyone seen this failure mode on a Grundfos CU200.
>> 
>> The tank full  light is on and it keeps pumping ( green arrows working)
>> 
>> I suspect the CU200 just needs to be replaced, but as they are pretty pricy I’d thought I’d ask around first.
>> 
>> thanks
>> 
>> jay
>> 
>> 
>> _______________________________________________
>> List sponsored by Redwood Alliance
>> 
>> Pay optional member dues here: http://re-wrenches.org
>> 
>> List Address: RE-wrenches at lists.re-wrenches.org
>> 
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>> 
>> There are two list archives for searching. When one doesn't work, try the other:
>> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
>> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>> 
>> List rules & etiquette:
>> http://www.re-wrenches.org/etiquette.htm
>> 
>> Check out or update participant bios:
>> http://www.members.re-wrenches.org
>> 
> 
> 
> -- 
> 
> 
> 
> Mac Lewis
> 
> "Yo solo sé que no sé nada." -Sócrates
> 
> _______________________________________________
> List sponsored by Redwood Alliance
> 
> Pay optional member dues here: http://re-wrenches.org
> 
> List Address: RE-wrenches at lists.re-wrenches.org
> 
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
> 
> There are two list archives for searching. When one doesn't work, try the other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
> 
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
> 
> Check out or update participant bios:
> http://www.members.re-wrenches.org
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches_lists.re-wrenches.org/attachments/20220224/8990d6cc/attachment.htm>