Thread Tools Search this Thread Display Modes
Old 11-04-2011, 10:38 AM   #1
Full Time Camper
Join Date: Oct 2004
Location: Texas
Posts: 1,508
We have been living in the Cruiser for 8 weeks since our house burned and hooked to city water w/o a problem. Well last night, expecting a freeze, I filled the fresh water tank and disconnected the city water line. Then as we were watching TV, the pump would cycle on every 5 to 10 min. for about 1 sec. Normally the first concern is a water leak, but not after 8 weeks of continuous use.I figured maybe a defective seal in the pump or maybe a check valve was allowing the pressure to drop. The pump cycled all night long but it was pretty quiet.

So, back at the RV today, I switched back to city water and immediately heard what sounded like a water leak at the pump. But no leak and no loose connection. Instead, the noise is water flowing thru the pump or check valve back into the fresh water tank and spilling out the tank fill inlet. For the time being, rather than a constant noise and wasted water, I have switched back to the 12v pump. But now it is even noisier than before.

Anyone else seen this type of problem and what was the fix? Since we are living in the Cruiser while rebuilding our house, taking the RV back to a dealer is not an option. And I don't really have the time to tackle the problem either.
Larry Day

Texas Baptist Men-Retiree Builders member since '01
13 Silverado 3500HD D/A, 2wd CCSB srw, custom RKI bed
11 Cruiser CF32MK
Dayle1 is offline   Reply With Quote
Old 11-04-2011, 10:49 AM   #2
Full Time Camper
Join Date: Nov 2006
Location: Bradley, Il
Posts: 1,018
Larry, maybe just stay connected to city water and trickle a faucet overnite. Just leave the dump valve open on that particular grey tank. We do this occasionally down in the Gulf Shores, Al. area in January and haven't had any problems down to the mid twenties overnite. You will have to probably plug the line to the pump from the city water connection.
Dale & Carol
Bradley, Il
2007 F-250
2010 CF30SK Patriot
2007 CF30SK
dalemac377 is offline   Reply With Quote
Old 11-04-2011, 11:42 AM   #3
Full Time Camper
Join Date: Jun 2007
Location: Normal
Posts: 629
Have you gone to the manufactures website to see if there might be some troubleshooting tips? That is weird....


2015 Rushmore Springfield

2017 F350 Dually 4x4 6.7 Bronze Fire
gossamar is offline   Reply With Quote
Old 11-04-2011, 12:13 PM   #4
Site Team
Join Date: Dec 2007
Location: WI.
Posts: 7,575
If you have a filter on your pump, it might be worth while to check it out to see if there is "stuff" in there creating a problem.
2008 Cruiser CF26RK
2013 Ford Eco-Boost
Heavy duty payload - Max tow
Lloyd is offline   Reply With Quote
Old 11-04-2011, 01:21 PM   #5
Seasonal Camper
hhh's Avatar
Join Date: Mar 2011
Location: Kzoo MI
Posts: 336

Larry, After I got my coach my water pump would cycle every 10 minutes or so. Also, it was pretty noisy and my 12v lights would even dim a bit when it was running. Not sure if it leaked when hooked to fresh water because I only got to hok up to fresh water once. When I took it in for the frame mods I had that on my list. They replaced the pump and that fixed it. The tech didn't know what was wrong with it, just that it didn't sound right to him and changing it was easier then trying to figure out what was wrong with it. I guess they can make a warranty claim from the manufacturer.

Edited by: hhh

'11 CF285RL Patriot - '08 GMC 3500HD D/A CC LB Dually - Yamaha Zuma 125

tgif: let's RV
hhh is offline   Reply With Quote
Old 11-04-2011, 08:08 PM   #6
Full Time Camper
Hamops's Avatar
Join Date: Apr 2006
Location: Ontario
Posts: 508

Larry, It sounds like your check valve on the pump is passing. I had a similar problem that required me to pull the pump and open it up. I removed all the pump internals and found a bit of scum (for use of a better word) in the pump cavity and the pressure switch internals. I cleaned the pump cavity and internal parts and reassembled the pump and reinstalled it. Because this problem occurred at a campsite that only had electricity, I had to put the pump into service immediately. After the pump repair/maintenance, I no longer had any cycling of it.

While we hadn't used the city water supply as long as you have, I suspect that the stagnant water in the pump caused the problem by desolved particles plating out on thepump internals.Another thing that I found is that this problem or complete pump failure can happen from the use of winterizingfluid. Thefluid has a dyeand what seems to be a slight thickening agentthat can gum up the pump to the point that it doesn't work. I've had this happen twice in six years. The first time it happened, I bought a new pump and replaced it. I could have saved myself a bag of money if I had just removed and opened up the pump, but then sometimes I have to learn things, "the hard way".
Helen & George VE3INB and Max (Bichon Frise)
2006 Silverado 2500HD D/A,
2006 Cruiser CF30SK
Hamops is offline   Reply With Quote
Old 11-04-2011, 11:18 PM   #7
Family Vacation Member
Texas1949's Avatar
Join Date: Jun 2011
Location: Texas
Posts: 198
Larry, hope you get it fixed. I had a similar issue last weekend, I had a 1/2 tank of fresh water (by what the controls say) and I hooked to city water. When I got home I wanted to do some cleaning and turned on the water and the pump ran but no water, I am thinking it lost suction.
I have not looked at it yet, That is on my list for today. I do not know where the pump is, it is not under the sink, I think it is frame mounted, so will have to cut the underbelly to find it.


2011 Dodge 3500 6.7 Cummins Crew Cab LWB Dually
2006 29RK Cruiser

Life is too short not to live it as a Texan.
Texas1949 is offline   Reply With Quote
Old 11-05-2011, 12:11 AM   #8
Full Time Camper
artgpo's Avatar
Join Date: Jul 2009
Location: Texas
Posts: 780

The water pump is usually in a compartment where access might be easy. Have not heard of anyone with a Cruiser needing to cut the underbelly for access. Ours is in the master bedroom under the dresser. The access panel was held in place by four screws that I removed and replaced with heavy duty Velcro and a pull handle.

Art and Karen
2013 Itasca Sunstar 35F, 2013 Ford C Max toad.
170 nights in 2013
132 in 2014
artgpo is offline   Reply With Quote
Old 11-05-2011, 12:38 AM   #9
Full Time Camper
gball's Avatar
Join Date: Feb 2006
Location: Texas
Posts: 526

The water pump on our '05 29RK was located under the refrigerator and next to the furnace. I would think that it would be in the same location on the '06 model. Remove the vent under the fridge and see if it is located there.
George & Lynda
College Station, TX
2011 Cruiser CF335SS Patriot
'04 Dodge 2500 Quadcab CTD
gball is offline   Reply With Quote
Old 11-06-2011, 09:29 AM   #10
Full Time Camper
Chrisnan23's Avatar
Join Date: Apr 2006
Location: KS
Posts: 863

Larry, Quick fix would be to put a check valve in the line in front of the pump. Or a shutoff valve.
__________________ and Nan Nelson Molly the wild child Niya the half pint beagle
29RK we love 2006 F250SD with Triton V10

Chrisnan23 is offline   Reply With Quote

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

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

This website is not affiliated with or endorsed by Crossroads RV or any of its affiliates. This is an independent, unofficial site.

All times are GMT -6. The time now is 11:21 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.