Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-08-2012, 01:50 PM   #1
2 Rivet Member
 
Seabrook Island , South Carolina
Join Date: May 2012
Posts: 29
Water pump not priming

I have a 2012 Interstate 3500. I used the water pump one or two times before for a short while and it worked fine. The last trip I took it would not work. The pump is running but no water comes through. Airstream support diagnosed it as the pump is not priming itself. They said since it is still under warranty I can just take it in and get it fixed or replaced at no charge. Problem is the nearest dealer is over 2 hours away. They suggested taking the pump apart to see if something is clogging the pump. Also suggested taking the screen out to see if it is plugged up.

Before I start taking things apart, has anyone else had this same problem? If so, what was the solution?

Thanks
__________________

__________________
Asheville is offline   Reply With Quote
Old 12-08-2012, 02:16 PM   #2
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,310
Quote:
Originally Posted by Asheville View Post
I have a 2012 Interstate 3500. I used the water pump one or two times before for a short while and it worked fine. The last trip I took it would not work. The pump is running but no water comes through. Airstream support diagnosed it as the pump is not priming itself. They said since it is still under warranty I can just take it in and get it fixed or replaced at no charge. Problem is the nearest dealer is over 2 hours away. They suggested taking the pump apart to see if something is clogging the pump. Also suggested taking the screen out to see if it is plugged up.

Before I start taking things apart, has anyone else had this same problem? If so, what was the solution?

Thanks
Had that problem with mine. The nice folks at Airstream of Mississippi, AKA Foley RV Center, were able to prime it for me in just a couple of minutes without taking anything apart except to remove the bottom drawer so they could reach the pump. Not sure exactly what they did, though. Guess I should have set up a webcam or something so I could watch. There's no other way for two people (the mechanic and me) to see inside the drawer opening at the same time.
__________________

__________________
WBCCI #1105
TAC LA-4

My Google-Fu is strong today.
Protagonist is online now   Reply With Quote
Old 12-08-2012, 02:18 PM   #3
Rivet Master
 
Lily&Me's Avatar

 
2006 22' Interstate
Normal , Illinois
Join Date: Jan 2009
Posts: 13,563
Is it everything that won't run----shower and sink?

We have had reduced flow when sediment has clogged the filter, I would sure check and clean out that screen.

Also check and clean the little screen in your sink spigot.

If you had bad water, those screens can clog up quickly. Not a terribly big deal to remove and clean them. We have done it and are not terribly handy.


Maggie
__________________
🏡 🚐 Cherish and appreciate those you love. This moment could be your last.🌹🐚❤️
Lily&Me is offline   Reply With Quote
Old 12-08-2012, 03:05 PM   #4
Rivet Master
 
DaveFL's Avatar
 
2000 31' Land Yacht
Central , Florida
Join Date: Aug 2007
Posts: 1,479
Images: 15
New vehicle shouldn't have trash in line, try loosening closest fitting on the pressure side of the pump. it shows arrow or reads output. If I run out of water on the boat, the pump sucks air and then won't pump water, have also managed to open valve closest to the pump and with a full tank it will self prime. Make sure your tank is full or at least has a level above pump input.
__________________
DaveFL is offline   Reply With Quote
Old 12-08-2012, 04:02 PM   #5
2 Rivet Member
 
Seabrook Island , South Carolina
Join Date: May 2012
Posts: 29
Will try that but I have no flow at all so that may not be the problem. Thanks
__________________
Asheville is offline   Reply With Quote
Old 12-08-2012, 04:05 PM   #6
2 Rivet Member
 
Seabrook Island , South Carolina
Join Date: May 2012
Posts: 29
Airstream suggested I fill tank to over flowing which i did and it still would not pump water ( although pump was running). I will try loosening valve. When you say pressure side do you mean the incoming or outgoing side? Thanks
__________________
Asheville is offline   Reply With Quote
Old 12-08-2012, 04:20 PM   #7
Figment of My Imagination
 
Protagonist's Avatar
 
2012 Interstate Coach
From All Over , More Than Anywhere Else
Join Date: Dec 2011
Posts: 10,310
Quote:
Originally Posted by Asheville View Post
Airstream suggested I fill tank to over flowing which i did and it still would not pump water ( although pump was running). I will try loosening valve. When you say pressure side do you mean the incoming or outgoing side? Thanks
Pressure side is the outgoing side. Suction side is the tank side.

A sudden thought… The pump is supposed to be self-priming, but it won't pump against air pressure, and that may be what's preventing it from priming. Open ALL the faucets, about midway between hot and cold, THEN turn on the pump. With an outlet for air to escape, the pump may prime itself.

If that doesn't work, THEN try disconnecting the pressure side.
__________________
WBCCI #1105
TAC LA-4

My Google-Fu is strong today.
Protagonist is online now   Reply With Quote
Old 12-08-2012, 04:32 PM   #8
Rivet Master
 
Lothlorian's Avatar
 
1973 27' Overlander
Loganville , Georgia
Join Date: Nov 2007
Posts: 1,733
I had this problem and had a RV tech check it out. He had a theory before he looked at it and went to the problem immediately. There was a very small amount of air entering in water tank side and he put plumber tape on the fitting and reattached it. I never have a problem since.

Brian
__________________
Brian & Adrienne
Lothlorian is offline   Reply With Quote
Old 12-08-2012, 05:52 PM   #9
Rivet Master
 
1977 Argosy 24
Currently Looking...
Milltown , Wisconsin
Join Date: Mar 2006
Posts: 1,069
Like was said above, make sure the faucets are open when trying to prime the pump, so the pump is not pushing against an air cushion.
__________________
ventport is offline   Reply With Quote
Old 12-08-2012, 07:32 PM   #10
2 Rivet Member
 
2010 27' FB International
La Crescent , Minnesota
Join Date: Feb 2007
Posts: 95
A pluged discharge line. A failed pump. Most likely sucking air through the inlet line.
Jay
__________________
mjayjensen is offline   Reply With Quote
Old 12-09-2012, 12:46 AM   #11
Rivet Master
 
73shark's Avatar
 
2011 Interstate Coach
Overland Park , Kansas
Join Date: Aug 2011
Posts: 2,748
After refilling the tank last spring, I had to use compressed air to get it to prime. Stuck the air line in the fill port and wrapped a rag around it and press and released the air nozzle several times. The faucet were open. This was what my dealer recommended and it worked.
__________________
Glass half full or half empty to an engineer is the glass is twice as big as it needs to be.

PM me for sale info on my 2011. SOLD!
Upfitted Transit 350 sitting in driveway.
73shark is offline   Reply With Quote
Old 12-09-2012, 05:38 PM   #12
2 Rivet Member
 
Seabrook Island , South Carolina
Join Date: May 2012
Posts: 29
Airstream suggested this also. I will try this before taking anything apart. Thanks
__________________
Asheville is offline   Reply With Quote
Old 12-10-2012, 08:37 PM   #13
Rivet Master
 
wayneskid's Avatar

 
2010 22' Interstate
Anchorage , Alaska
Join Date: Mar 2010
Posts: 515
Images: 1
I had the same problem. Jim P. at Airstream CS suggested SLIGHTLY pressurizing the tank with an air compressor. This got it going right away!
__________________
- wayne
2010 Interstate 3500 Twin Bed
(2008 Freightliner CRD Sprinter)
AIR #44779
TAC AK-1 !!
wayneskid is offline   Reply With Quote
Old 03-18-2013, 05:24 PM   #14
3 Rivet Member
 
jquayle's Avatar
 
2013 Interstate Coach
Napa , California
Join Date: Mar 2013
Posts: 122
Same problem.

Dealer told me I needed the water level completely full, but that didn't help. They got it primed and advised they had found a lot of plastic shaving in the line.

Drained all the water during a ski trip to Tahoe to prevent water freezing in the lines. After I filled it back up it wouldn't prime.

Dealer walked me through checking the filter screen (most plastic shavings, but removing them didn't help)

I was able to get it primed by messing with the drain valves open and closed until it eventually primed. Overall I'm not thrilled with the performance of this units ability to 'self prime'.

Pressuring the tank as recommended in other posts may work great, but that's not really 'self priming' either.
__________________

__________________
jquayle 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 11:21 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.