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07-10-2016, 07:32 PM
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#1
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Junior Member
Join Date: Jul 2015
Location: East
Posts: 9
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Water pump died?????
2012 greyhawk, dry camped a couple of nights ago and everything worked fine. Last night we camped at a site with full hook up. Left this morning and noticed while on the road that we had no water pressure (did return the valves to normal position). Pump turns on and runs constantly. Looked at the filter in front of the pump and it looks good. Took the outlet hose off the pump and turned the pump on. Pump ran but no water. Also no air was felt when i place my finger over the pump output hole. Put that hose on and took the inlet hose off. Placed my finger over the inlet hole and felt no suction. Has to be a bad pump, right??????
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07-10-2016, 07:40 PM
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#2
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Senior Member
Join Date: Apr 2013
Location: Cleveland
Posts: 1,448
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Seems odd that the pump would go right after you used full hookups. Are you positive you set all of the valves back to the position to use the on board tanks? Check the outside water connection (where you attached the full hookup water hose) as there is a check valve in there that needs to close for proper functioning of the pump. Sometimes you need to gently poke the valve to get it to seat properly.
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2013 Jayco JayFlight 26RKS
2013 Ford F150 Ecoboost FX4
2003 Coleman Bayside / 2011 Jayco Jayfeather X20E -- RIP
2012 Tacoma Sport DCSB / 2013 Tundra SR5 - RIP
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07-10-2016, 07:42 PM
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#3
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Senior Member
Join Date: Dec 2014
Location: Akron
Posts: 3,207
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I know you said you returned the valves to the proper position for tank/pump use, but can you verify that the valve stems actually moved and that the handle did not "slip" on the shaft of one valve? I had that happen once when the setscrew came loose and the handle would not properly indicate the true position of the valve.
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Rob R.
Akron, OH
2014 Seneca 37TS
Toads: 2019 Ford Edge ST or 2013 Ford Focus ST
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07-10-2016, 07:57 PM
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#4
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Senior Member
Join Date: Mar 2015
Location: State of Confusion
Posts: 5,012
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Uh,,,
Does the fresh water tank have any water in it?
Murff
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Murff
2015 White Hawk 20MRB (It's last year)
2017 F150 2.7 Eco Boost 3.73 Gears
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07-10-2016, 08:33 PM
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#5
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Junior Member
Join Date: Jul 2015
Location: East
Posts: 9
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FW tank is completely full. Will check the set screws on the valve handles in the morning. Shouldn't I have felt suction on the pump when I put my finger over the intake or output?
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07-11-2016, 04:13 AM
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#6
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Senior Member
Join Date: Dec 2009
Location: Maplesville - Home Base
Posts: 3,059
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My original pump failed suddenly last year. One day it worked, the next day it didn't. It had a small hole in the diaphragm. New pump solved the problem and being an upgraded one with slightly greater pressure and flow it was a better deal and easy to replace. Not that easy to get to, but easy to replace once it was exposed.
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Ed
KM4STL
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50X, TST Systems 507 TPMS, RV Flex Armor Roof
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07-11-2016, 06:50 AM
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#7
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Senior Member
Join Date: Jun 2010
Location: Saskatoon Sask Canada
Posts: 10,720
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Did you try drawing water through the winterization hose? if that fails then you know you have a bad pump diaphragm.
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Seann
2004 Chev Silverado Duramax optioned past the max. 2009 Jayco Eagle 308 RLS 900watts of solar, Lithium batteries (400amp hour), 2000 watt (4000 surge) whole house inverter.
145days /2023 2022/151 2021[/COLOR]
93/2020,157/2019219/2018 206/2017,215/2016, 211/2015, 196/14, 247/13, 193/12
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07-11-2016, 01:08 PM
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#8
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Senior Member
Join Date: May 2014
Location: Missouri
Posts: 222
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I had the same thing happen to me. What I found was the internal check valve was stuck wide open. I removed the pump, removed the head and just touched the small button on the check valve and it popped back in place, reassembled the pump, reinstalled and worked fine. I did order a check valve repair kit just-in-case.
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2015 Jayco Jayflight 24FBS
2013 F150 Super Crew 3.5, 3:31
2004 f150 Super Crew 5.4, 3:73 traded
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07-11-2016, 01:35 PM
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#9
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Senior Member
Join Date: Apr 2012
Location: White Bear Lake
Posts: 409
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Quote:
Originally Posted by sgilbert
FW tank is completely full. Will check the set screws on the valve handles in the morning. Shouldn't I have felt suction on the pump when I put my finger over the intake or output?
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If the pump was totally dry, you may not feel any air. These are for liquids, and do a terrible job moving gases. Not until you can get enough liquid in the system to push on the air will you feel anything coming out.
See if you can "prime" it by loading up the intake side with water via filling the hose used for sucking antifreeze up. Fill the hose, and hold it up to keep the water in (and give the water a bit of gravity assist) with the open end in a container of water, while someone opens a faucet and turns on the pump. (set the valves correctly, for this, of course). Then fairly quickly if it sucks in the water, turn it off, and switch the valve over to pulling from the tank.
These pumps are supposedly "self-priming", but sometimes....of course, if it needs to be primed again, then it's time to look closer at the guts - check valves (if any), diaphragms, etc.
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2012 Ford F-150 Eco, SCrew, 4x4, MaxTow, HD Payload
SOB, used to be:Jayco 26.5 RLS
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07-11-2016, 01:38 PM
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#10
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 9,769
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Quote:
Originally Posted by Seann45
Did you try drawing water through the winterization hose? if that fails then you know you have a bad pump diaphragm.
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X2, make sure the winterizing valves are set correctly.
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07-11-2016, 02:06 PM
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#11
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Senior Member
Join Date: May 2014
Location: Missouri
Posts: 222
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I noticed that if you connect the city water without using a pressure reducer and the pressure is too high, it will over extend the internal check valve spring causing it to stick. (my bad). Then if you use the fresh water tank and try pressurizing the system with the pump it will just run with out building pressure because the check valve is open and will not allow it to build pressure. The check valve replacement part # Shurflo Check Valve 4008 Pumps 94-800-03
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2015 Jayco Jayflight 24FBS
2013 F150 Super Crew 3.5, 3:31
2004 f150 Super Crew 5.4, 3:73 traded
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07-11-2016, 07:09 PM
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#12
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Junior Member
Join Date: Jul 2015
Location: East
Posts: 9
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Quote:
Originally Posted by Flapper
If the pump was totally dry, you may not feel any air. These are for liquids, and do a terrible job moving gases. Not until you can get enough liquid in the system to push on the air will you feel anything coming out.
See if you can "prime" it by loading up the intake side with water via filling the hose used for sucking antifreeze up. Fill the hose, and hold it up to keep the water in (and give the water a bit of gravity assist) with the open end in a container of water, while someone opens a faucet and turns on the pump. (set the valves correctly, for this, of course). Then fairly quickly if it sucks in the water, turn it off, and switch the valve over to pulling from the tank.
These pumps are supposedly "self-priming", but sometimes....of course, if it needs to be primed again, then it's time to look closer at the guts - check valves (if any), diaphragms, etc.
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Primed it and it's working so far. The grey hawk takes in antifreeze in the same location that you hook up city water. So, while connected to city water, I turned the valves to "winterize/sanitize" and turned the pump on til water came out of the faucet.
Thanks for the advice and everyone else's input!
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