CLICK HERE AND JOIN OUR COMMUNITY TODAY, IT'S FREE!

Go Back   Plumbing Zone - Professional Plumbers Forum > Plumbing Forum > General Plumbing Discussion


Reply
 
Thread Tools Display Modes
Old 03-18-2010, 07:17 AM   #1
Senior Member
 
SummPlumb's Avatar
 
Join Date: Feb 2010
Posts: 145

View SummPlumb's Photo Album My Photos
Default Circulation Pump...

I installed a grundfos circulating pump yesterday, and at about 4 minutes after I fired it up, it started making a loud screaming noise. Is it trash in the line? Any suggestions?

It is not the big bronze model. It is the smaller red one that has a Low- Med_High setting on the side.

Thanks for your help...
__________________
"The Plumbing Guru"
SummPlumb is offline   Reply With Quote

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. PlumbingZone.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Old 03-18-2010, 09:14 AM   #2
Senior Member
 
RealLivePlumber's Avatar
 
Join Date: Jun 2008
Location: NJ
Posts: 3,067

View RealLivePlumber's Photo Album My Photos
Default

can you seperate the electric motor from the pump, and run the motor.

This will tell you if it is the electric motor (bushings, shaft), or a problem in the waterway.
__________________
RealLivePlumber
You can make it happen, you can watch it happen, or you can wonder wtf happened.
Phil Harris 2009
RealLivePlumber is offline   Reply With Quote
Old 03-18-2010, 10:14 AM   #3
Senior Member
 
njoy plumbing's Avatar
 
Join Date: May 2009
Location: Stratmore, Ab. Canada
Posts: 592

View njoy plumbing's Photo Album My Photos
Default

Is it a heating circ or domestic recirc pump?
njoy plumbing is offline   Reply With Quote
Old 03-18-2010, 04:24 PM   #4
Senior Member
 
Plumbus's Avatar
 
Join Date: Aug 2008
Location: San Francisco Peninsula
Posts: 816

View Plumbus's Photo Album My Photos
Default

That sounds like a UP 15 29. Did you purge the line of air? If so, put it on the lowest setting and see if that quiets it down.
Plumbus is offline   Reply With Quote
The Following User Says Thank You to Plumbus For This Useful Post:
Tankless (03-19-2010)
Old 03-18-2010, 07:07 PM   #5
Drained Professional
 
Miguel's Avatar
 
Join Date: Aug 2009
Location: Sunset Country, Ontario
Posts: 842

View Miguel's Photo Album My Photos
Default

The older grundfos circs needed to be "bled" at the screw at the end of the shaft, however I don't think you need to do this anymore.
Is the shaft horizontal? Some of them don't like being mounted vertically up (NEVER vertically DOWN! On any of them!) They're water lubricated so it matters.
__________________
BOOM-diyada! Life is good!
Miguel is offline   Reply With Quote
Old 03-18-2010, 09:08 PM   #6
Senior Member
 
futz's Avatar
 
Join Date: Sep 2009
Location: Delta, B.C.
Posts: 1,270

View futz's Photo Album My Photos
Default

Quote:
Originally Posted by SummPlumb View Post
I installed a grundfos circulating pump yesterday, and at about 4 minutes after I fired it up, it started making a loud screaming noise. Is it trash in the line? Any suggestions?

It is not the big bronze model. It is the smaller red one that has a Low- Med_High setting on the side.
Sounds like a UPS15-58 maybe? They're usually very good pumps. I use a lot of them. I recently had one do that brand new out of the box on a brand new heating system. It was properly installed. It squawked for a minute or so and then quieted down and was fine after that. No idea what the problem was. As Plumbus said, maybe just a bit of air in it. I had kind of expected a callback from the new owners if it started squawking during the warranty period, but haven't heard from them so I guess it's still ok.
futz is online now   Reply With Quote
Old 03-19-2010, 06:53 AM   #7
Senior Member
 
SummPlumb's Avatar
 
Join Date: Feb 2010
Posts: 145

View SummPlumb's Photo Album My Photos
Default

Thanks for the input guys. My guys did not purge the air from the line. Thank goodness they unplugged it until they went back yesterday to finish the job.

btw, this was on a domestic water application in a nursing home.

It was taking 1 minute 10 seconds to get hot water to the last room, not it takes 3-5 seconds. Awesome pump!
__________________
"The Plumbing Guru"
SummPlumb is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Well pump is stolen express Business, Marketing, and Sales 9 07-23-2009 06:35 PM
Well Pump problems 3KP General Plumbing Discussion 9 05-27-2009 10:35 PM
another well pump express Residential Plumbing 15 02-25-2009 11:00 AM
help with well pump express Residential Plumbing 4 02-22-2009 10:09 PM
Outside Sump Pump Song Dog Plumbing Material and Products 7 07-25-2008 11:53 AM


All times are GMT -4. The time now is 09:35 PM.


Copyright 2000-2014 Escalate Media LP. All Rights Reserved
Our Pro Sites Network
ContractorTalk.com | DrywallTalk.com | ElectricianTalk.com | HVACSite.com | PaintTalk.com | RoofingTalk.com

Search Engine Optimization by vBSEO 3.6.1