Reply
 
Thread Tools Search this Thread Display Modes
 
Old 09-21-2014, 09:17 AM   #1
one of those
 
Gringo's Avatar
 
2011 27 FB International
'03 F250 PSD , Airstream summers, Catalac winters
Join Date: Apr 2011
Posts: 1,091
Lightbulb water pump "reset" question

We've had the trailer three years now, but this weekend is the first time we've taken it offroad and camped away from any hookups. I'd only used the Shurflo pump when winterizing, never needed it hooked up to KOA water. Now in our third day offgrid, and I have a question.

The pump will run just fine, for a minute or so. Or all day, maybe, if we just use it sporadically. But from time to time it just stops. First time it happened I grabbed the voltmeter and checked at the converter and had power and a good fuse there. When I plugged the fuse back in, ( the 20 amp on the converter) the pump started up. I thought it must be corrosion or loose fuse contact, although it looked clean. Pump ran fine through some light, intermittent use. Then stopped again. I tried reseating fuse, no joy. Still had voltage there. So I opened cabinet and checked power at the other fuse, the one right at the pump itself. I pulled the fuse out to check it, it was okay and there was power to it. Now I'm getting confused. Plugging the fuse back in, the pump came on. Briefly. Now I've determined that simply turning the pump switch on the monitor off, and then back on, or turning the monitor itself off and on, will let the pump run briefly. Does this sound familiar to anyone? Turning power off and then after a minute, back on and the pump will run for a short time?
__________________

__________________
A Blog from the Devil's Triangle
http://2gringos.blogspot.com/
Gringo is offline   Reply With Quote
Old 09-21-2014, 09:34 AM   #2
Rivet Master
 
lsbrodsky's Avatar
 
2012 25' FB International
Trent Woods , North Carolina
Join Date: May 2013
Posts: 1,687
Not sure of your problem, but the pump runs based on a pressure switch. If the pressure is high enough the pump stops. If you have a faucet open, though, the pressure should remain low enough to run the pump continuously unless you have a faulty pressure switch.
Larry
__________________

__________________
lsbrodsky is offline   Reply With Quote
Old 09-21-2014, 09:45 AM   #3
one of those
 
Gringo's Avatar
 
2011 27 FB International
'03 F250 PSD , Airstream summers, Catalac winters
Join Date: Apr 2011
Posts: 1,091
thanks, not sure how to check that, but if I can find it I'll give it a try. Should be on the pump itself, I think.
__________________
A Blog from the Devil's Triangle
http://2gringos.blogspot.com/
Gringo is offline   Reply With Quote
Old 09-21-2014, 11:33 AM   #4
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,306
If all is working properly, the pump should only run when you open a faucet. If it runs at other times, that means you have a leak somewhere. If you can't find any leaks, it's possible that the check valve that prevents water from running backward through the pump is defective, allowing water to drip back into the fresh tank until the pressure drops far enough for the pump to come on again.
__________________
WBCCI #1105
TAC LA-4

My Google-Fu is strong today.
Protagonist is offline   Reply With Quote
Old 09-21-2014, 02:26 PM   #5
one of those
 
Gringo's Avatar
 
2011 27 FB International
'03 F250 PSD , Airstream summers, Catalac winters
Join Date: Apr 2011
Posts: 1,091
No, that's the total opposite of my issue with this one. I must have explained it badly.

This pump stops, and doesn't start again until after I disconnect power to it and then reconnect it. It pumps fine when it pumps. No obvious reason for it to just stop. And then restart after I check a fuse or turn the power off and then back on.
__________________
A Blog from the Devil's Triangle
http://2gringos.blogspot.com/
Gringo is offline   Reply With Quote
Old 09-21-2014, 02:35 PM   #6
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,306
Quote:
Originally Posted by Gringo View Post
No, that's the total opposite of my issue with this one. I must have explained it badly.

This pump stops, and doesn't start again until after I disconnect power to it and then reconnect it. It pumps fine when it pumps. No obvious reason for it to just stop. And then restart after I check a fuse or turn the power off and then back on.
So opening a faucet doesn't cause the pump to run, and nothing else seems to be wrong with it. I understand now. But that's a new one in my experience, and I have no clue what the answer is, unless it is the pressure switch. Which is probably internal and you can't see it without disassembling the pump.
__________________
WBCCI #1105
TAC LA-4

My Google-Fu is strong today.
Protagonist is offline   Reply With Quote
Old 09-21-2014, 04:01 PM   #7
Rivet Master
 
AnnArborBob's Avatar
 
2014 27' FB Eddie Bauer
Chelsea , Michigan
Join Date: May 2010
Posts: 1,766
Images: 12
A new pump costs less than $100 (not including installation labor which sounds like you are capable of handling.) If I were having your issues, I'd simply get a new pump and see if that solves the problem.

__________________
Bob Martel
WBCCI# 5766
AnnArborBob is offline   Reply With Quote
Old 09-21-2014, 07:00 PM   #8
one of those
 
Gringo's Avatar
 
2011 27 FB International
'03 F250 PSD , Airstream summers, Catalac winters
Join Date: Apr 2011
Posts: 1,091
you're right. I'm not accustomed to being in the USA where I can drive down to the nearest distributor and buy a pump. That's a great idea. It's a shame we waited three years to try to use the onboard water setup. I have to wonder if there might be a vent issue with the water tank, for example. If air couldn't get into the tank, would it stop the pump? Or would it keep spinning but not producing?

This is the Shurflo Smart Sensor 4.0 pump. Supposedly microprocessor controlled. But it wouldn't take much time at all to replace it. Very acccessible.
__________________
A Blog from the Devil's Triangle
http://2gringos.blogspot.com/
Gringo is offline   Reply With Quote
Old 09-21-2014, 08:23 PM   #9
Prairie Schooner II
 
Jim Flower's Avatar

 
2012 30' International
1997 25' Safari
1967 20' Globetrotter
Burlington , Ontario
Join Date: Jul 2009
Posts: 1,182
My pump has behaved in a similar fashion a few times and after doing all the stuff that you have done with the addition of buying a new pump, ( now a spare) I fiddled with the on/off switch a bunch and the pump started up and worked perfectly. So my fix is a non fix but I have water. Good enough! Jim


Sent from my iPad using Airstream Forums
__________________
Jim
Jim Flower is offline   Reply With Quote
Old 09-22-2014, 07:27 AM   #10
Rivet Master
 
AnnArborBob's Avatar
 
2014 27' FB Eddie Bauer
Chelsea , Michigan
Join Date: May 2010
Posts: 1,766
Images: 12
Quote:
Originally Posted by Gringo View Post
you're right. I'm not accustomed to being in the USA where I can drive down to the nearest distributor and buy a pump. That's a great idea. It's a shame we waited three years to try to use the onboard water setup. I have to wonder if there might be a vent issue with the water tank, for example. If air couldn't get into the tank, would it stop the pump? Or would it keep spinning but not producing?

This is the Shurflo Smart Sensor 4.0 pump. Supposedly microprocessor controlled. But it wouldn't take much time at all to replace it. Very acccessible.
The onboard fresh water tank does have a vent located near the fill port. If the vent was blocked, that might impact the pump's performance but I would think the pump would run and try to pump for awhile before burning out. The symptom you described of the pump shutting off is not consistent with how I understand the pump is supposed to work. An easy way to check the function of the vent is to try and fill the fresh water tank. If the vent is blocked you will have a lot more trouble filling the tank (resistance and splash back, etc..) than you would if it was working properly.
__________________
Bob Martel
WBCCI# 5766
AnnArborBob is offline   Reply With Quote
Old 09-22-2014, 07:41 AM   #11
2 Rivet Member
 
VTSmitty's Avatar
 
2013 23' FB Flying Cloud
Jericho , Vermont
Join Date: Mar 2014
Posts: 88
We had the same problem with our Shurflo Smart Sensor. It would work for a while, but if you turned off the water and then turned it on again the pump wouldn't kick in. Similar situation to yours, where it hadn't been used in a while. We swapped it out for a new pump, never had another problem. Pumps are cheap, and easy to replace.
__________________
Dan and Chris (and Lindy and Milo)
2013 Flying Cloud 23FB
2014 Tundra DC 5.7L / ProPride / Tekonsha P3
VTSmitty is offline   Reply With Quote
Old 09-22-2014, 07:47 AM   #12
3 Rivet Member
 
teagues's Avatar
 
2008 20' Safari SE
Charlotte , North Carolina
Join Date: Feb 2007
Posts: 133
Could this be because of a loose ground connection at the pump?
__________________
teagues is offline   Reply With Quote
Old 09-22-2014, 09:13 AM   #13
one of those
 
Gringo's Avatar
 
2011 27 FB International
'03 F250 PSD , Airstream summers, Catalac winters
Join Date: Apr 2011
Posts: 1,091
I didn't see a separate ground connection, but will have another look.

And I did notice that it seemed unneccessarily troublesome to fill the tank before leaving the KOA for the boonies. I had the hose stuck about 4-6" down the fill spout, and water shot out, well before it was full. I pulled some hose out and slowed it down, and managed to get several more gallons in. Maybe five more. Since I had never filled the tank before, and have never filled a different Airstream, I don't really know if this is normal or not.

I'm not yet to the point where I think that $250 for a plastic 12 volt water pump is "cheap". Especially Shurflos latest pride and joy that starts causing problems the first time we need to rely on it.

If I have to replace it, I think I would look into more basic models. This expensive one doesn't seem to be any quieter or work any better than a $ 75 pump without a microprocessor. Do you guys think Shurflo is superior to Flowjet?

.
__________________
A Blog from the Devil's Triangle
http://2gringos.blogspot.com/
Gringo is offline   Reply With Quote
Old 09-22-2014, 10:03 AM   #14
Rivet Master
 
AnnArborBob's Avatar
 
2014 27' FB Eddie Bauer
Chelsea , Michigan
Join Date: May 2010
Posts: 1,766
Images: 12
Gringo, I don't have any specific recommendations for you regarding the brand or features of the pump you should consider for a replacement beyond suggesting that you get a variable speed pump rather than one that is simply "on or off." The variable speed pump which comes with contemporary AS' is much quieter than the "on/off" variety.

As far as the fresh water tank vent is concerned, I would be surprised if that was causing you issues with the pump shutting down, but it does sound to me like you have some blockage in the vent line which you should try to clear up. Mine has a little mesh screen over it which you would want to preserve to keep bugs out of the tank. Perhaps you could rig a hose from an air compressor to cover the hole and then blow out whatever obstruction might be there?

Good luck!
__________________

__________________
Bob Martel
WBCCI# 5766
AnnArborBob 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel pump shutoff switch reset quentinhanin General Repair Forum 0 09-07-2013 12:13 PM
How do I reset the "maintenance overdue" monitor? solar-guy Sprinter and B-van Forum 1 01-12-2012 12:42 PM
Do you reset the brake controller for wet weather? richinny Brakes & Brake Controllers 4 06-12-2009 05:49 PM
Electrical Newbie with circuit breaker that won't reset...help please! Kerina Electrical - Systems, Generators, Batteries & Solar 13 05-04-2008 10:18 AM


Virginia Campgrounds

Reviews provided by




Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 09:06 PM.


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.