Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-28-2011, 07:30 PM   #1
4 Rivet Member
 
steverino's Avatar
 
2010 27' FB Flying Cloud
Ivins , Utah
Join Date: Aug 2009
Posts: 276
Images: 3
Shur-flo water pump cycles on and off

On my 2010, the water pump cycles on for about 1 to 2 seconds every 5 minutes. City water is disconnected, air has been carefully purged from all lines and water heater, and I have hunted for leaks and found nothing. I'll be adding this to the warranty cut list, but in the mean time, any suggestions on what else to look for are appreciated!
__________________

steverino is offline   Reply With Quote
Old 05-28-2011, 07:54 PM   #2
Rivet Master
 
garry's Avatar
 
1969 31' Sovereign
Broken Arrow , Oklahoma
Join Date: Jan 2003
Posts: 1,362
Images: 7
Main cause for the pump to cycle;

Air leak on the supply side or water leak on the demand side.
__________________

__________________
Garry
garry is offline   Reply With Quote
Old 05-28-2011, 08:00 PM   #3
Full Timers/Diesel power.
 
Mike Leary's Avatar
 
1983 31' Airstream310
Cactus Hug , Arizona
Join Date: Mar 2007
Posts: 2,540
Images: 11
Quote:
Originally Posted by garry View Post
Main cause for the pump to cycle;

Air leak on the supply side or water leak on the demand side.
What he said. I'd be leaning towards a slight leak, it does not take much to have the pump "make-up".
Have you looked at the area around the pump with a flashlight?
__________________
"A settled wisdom, plus the itch to be elsewhere"
Mike Leary is offline   Reply With Quote
Old 05-29-2011, 12:15 AM   #4
4 Rivet Member
 
steverino's Avatar
 
2010 27' FB Flying Cloud
Ivins , Utah
Join Date: Aug 2009
Posts: 276
Images: 3
Yep, checked the pump, under shower, bath vanity, galley, water heater, outdoor shower. No signs of leaky sink, shower, or toilet valve. No signs of leak thru belly pan. Perhaps a pinhole leak in the pex somewhere, but with the pump running so often, I would think i'd be able to spot water accumulating somewhere.... Is it possible that the pressure is bleeding off back thru the pump?
steverino is offline   Reply With Quote
Old 05-29-2011, 05:25 AM   #5
Rivet Master
 
Wayne&Sam's Avatar
 
2014 25' Flying Cloud
Cuddebackville , New York
Join Date: May 2007
Posts: 3,101
Images: 21
Check the water heater blow off and drain plug.
__________________
Wayne&Sam is online now   Reply With Quote
Old 05-29-2011, 06:25 AM   #6
4 Rivet Member
 
SilverCottage's Avatar
 
2007 27' Safari FB SE
LONDON , ON
Join Date: Dec 2006
Posts: 262
Did you make sure the clear screw-on cap on this was tight? It is just before the pump and has been a cause of the same problem in our trailer.

Click image for larger version

Name:	shurflo.jpg
Views:	77
Size:	64.9 KB
ID:	130962
__________________
SilverCottage is offline   Reply With Quote
Old 05-29-2011, 07:43 AM   #7
Rivet Master
 
Minno's Avatar

 
1972 31' Sovereign
Lexington , Minnesota
Join Date: Feb 2009
Posts: 3,323
Quote:
Originally Posted by steverino View Post
Is it possible that the pressure is bleeding off back thru the pump?
Yes. The internal check valve could be dirty or have gone bad.

Chris
__________________
Minno is offline   Reply With Quote
Old 05-29-2011, 09:29 AM   #8
3 Rivet Member
 
2Tex4Fun's Avatar
 
1970 25' Tradewind
San Antonio , Texas
Join Date: Jan 2008
Posts: 166
Images: 9
Hope you can help our pump problem also!? Our pump continually 'spits air' like there is air in the system...only happens when using the pump. Pump doesn't cycle on & off...just spits air. Had it at the AS Facotry last summer & they say is 'fixed' but not true. Any advice? Thanks!
__________________
2Tex4Fun is offline   Reply With Quote
Old 05-29-2011, 09:38 AM   #9
Rivet Master
 
TG Twinkie's Avatar
 
1974 Argosy 26
Morrill , Nebraska
Join Date: Nov 2009
Posts: 5,140
Images: 2
Blog Entries: 5
@2Tex; Sounds like you have a leak on the input side of the pump. It is sucking air as well as water. It could be the inline filter or fittings where the hoses connect.
In regards to the first post; since you can't find any leaks. I think the internal check valve in the pump may have junk in it or calcium build up that prevents it from closing off completely. It may have just failed.
You can get an inline check valve and install it instead off replacing the pump.
__________________
Knowledge: "A gift to be shared. A treasure to receive."
TG Twinkie is offline   Reply With Quote
Old 05-29-2011, 10:34 AM   #10
More than one rivet loose
 
thecatsandi's Avatar

 
Currently Looking...
Keymar , Maryland
Join Date: Feb 2006
Posts: 3,754
I had manufacturing debris stuck in my first pump. It made it past the filter and got stuck in one of the valves of the pump. The pump was replaced under warranty.
__________________
Michelle TAC MT-0
Sarah, Snowball

Looking for a 1962 Flying Cloud

thecatsandi is offline   Reply With Quote
Old 05-29-2011, 12:00 PM   #11
Rivet Master
 
RickDavis's Avatar

 
1961 24' Tradewind
1969 29' Ambassador
1970 21' Globetrotter
Jamestown , Tennessee
Join Date: Jul 2008
Posts: 1,781
There is a check valve in the pump head. A little debri can allow water to seep back into the tank, thus no apparent leak. Often with a little use the problem will clear itself, particularly if you don't use the pump a lot.
Usually on our first trip of the year the problem appears and then disappears in a day or two.
Repair parts are available if needed
__________________
Rick Davis 1602 K8DOC
61 tradewind, plus a few others
13 Ram 2500 TD
99 Dodge TD 577K miles

RickDavis is offline   Reply With Quote
Old 05-29-2011, 02:51 PM   #12
4 Rivet Member
Commercial Member
 
Castaway's Avatar
 
2012 25' FB Flying Cloud
Celina , Ohio
Join Date: Jul 2010
Posts: 353
Images: 3
Quote:
Originally Posted by 2Tex4Fun View Post
Hope you can help our pump problem also!? Our pump continually 'spits air' like there is air in the system...only happens when using the pump. Pump doesn't cycle on & off...just spits air. Had it at the AS Facotry last summer & they say is 'fixed' but not true. Any advice? Thanks!
I had this problem when I added a short piece of sink tubing just before the filter. The manual said maximum length from tank should be no more than six feet, evidently that made it over that length.



Gary
__________________

__________________
Castaway is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
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



Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:03 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.

Airstream is a registered trademark of Airstream Inc. All rights reserved. Airstream trademark used under license to Social Knowledge LLC.