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06-12-2014, 05:23 PM
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#1
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Junior Member
Join Date: Dec 2012
Location: Langley, BC
Posts: 11
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Cougar 28RBS WATER PUMP
Folks, I'm having a hard time diagnosing an issue with my water pump.
Water pump works fine for first day or so but at some random point in time the pump won't shut off. I open a tap and pump begins. Close the tap and pump slows to very slow speed but won't shut off.
There are no leaks, air or water, anywhere that I can find, and the battery is almost fully charged.
It's becoming a problem for trips that are longer than two days.
Any ideas on what may be causing this issue ?
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06-12-2014, 06:27 PM
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#2
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Senior Member
Join Date: Nov 2012
Location: Fruitland
Posts: 3,357
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It will run to fill the hot water tank for alittle while if your useing hot water. If it is NOT turning off than there is a air or water leak. Check every faucet again including outside shower and make sure they are off. Check the pressure valve on the hot water tank for leaks. How about the toilet. If it will not shut off where is the water going.
__________________
2013 24RKSWE (27ft TT) Cougar 1/2 ton series SOLD 10-2021
2013 Ford F350 4x4 CC 6.7 engine, 8 ft bed, 3.55 rear end, lariat package
Retired from Oregon State Police in 2011 than worked another 9.5 years as a small town traffic cop:
As of 05-2020, I am all done with 39 years total police work. No more uniforms for me.
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06-12-2014, 06:41 PM
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#3
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Junior Member
Join Date: Dec 2012
Location: Langley, BC
Posts: 11
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I appreciate the tips. Unfortunately I have checked all you mentioned, many times. It's driving me nuts! Not to mention if we don't catch it running it will drain our batteries. That's happened already.
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06-12-2014, 06:42 PM
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#4
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Junior Member
Join Date: Dec 2012
Location: Langley, BC
Posts: 11
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My only thought is the water pump is somehow failing. Not sure if that's a possible symptom of failure.
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06-12-2014, 06:45 PM
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#5
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,979
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You may have a scored/scratched roller in the pumphead. If you do, it will run consistently, trying to build up pressure, but the water is leaking back past the damaged roller and not moving into the water line to build the pressure. If you have a Sureflo pump you can buy a replacement pump head, but on FloJet pumps, it's cheaper to just replace the entire pump. Don't throw away the old one, there's a functional 12 volt motor on it and you might need it at a later date 
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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06-12-2014, 06:50 PM
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#6
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Junior Member
Join Date: Dec 2012
Location: Langley, BC
Posts: 11
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Why would it only do this after a day or so of use?
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06-12-2014, 06:50 PM
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#7
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Site Team
Join Date: Jun 2009
Location: Venice
Posts: 5,346
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If no leaks, it may be the pump itself has a bad check valve or pressure switch. We have always been in the habit of turning off the pump when we are not using water.( not an easy thing to do with kids) It is also can prevent major damage if you do get a leak that no one notices.
__________________
 Hank & Lynn
2007 Cougar 290RKS, E-Z Flex, 16" XPS RIBs ( SOLD  .. Gonna miss her ... looking for new 5r)
2004.5 Dodge 2500 QC, LB, 5.9HO, WestTach gauges, Ride-Rite
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06-12-2014, 07:00 PM
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#8
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Site Team
Join Date: Mar 2011
Location: Gaylord
Posts: 26,979
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Quote:
Originally Posted by sibwolf
Why would it only do this after a day or so of use?
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Possibly because the defective part functions as expected until it reaches a particular orientation, then it stops working ???
Why does your car go, "bump, ding ding, bang for weeks on end and then, when you take it in for service, it's "silent as can be" ???
__________________
John
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS
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