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12-01-2014, 11:30 AM
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#1
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Winnebago Camper
Join Date: Sep 2011
Posts: 34
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Water pump will not shut off
2005 vectra the water pump works but will not shut off.
City water works also with no leaks. Local dealer told me i needed new water pump because the were no parts for my old pump. Installed new pump and still pump will not shut off. I've checked all one way check valves that i know of and all seem good. When pump is running there are no leaks. And no pressure drop.
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12-01-2014, 12:13 PM
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#2
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Winnebago Master
Join Date: Apr 2003
Location: Skiatook, OK
Posts: 1,467
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2005VECTRA, is you city water fill valve open?
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Grant & Pat
2014 Adventurer 35P 
2021 Rapid Red 4dr Bronco OBX
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12-01-2014, 12:14 PM
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#3
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Winnebago Owner
Join Date: Jun 2004
Posts: 66
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City water fill valve turned back to city supply and not tank fill?
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12-01-2014, 02:25 PM
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#4
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Winnebago Camper
Join Date: Sep 2011
Posts: 34
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yes city valve open to coach and not on tank fill.
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12-01-2014, 02:39 PM
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#5
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Winnebago Owner
Join Date: Sep 2010
Posts: 94
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This is just a guess. Your pump should not be running if you are attached to city water. Turn off the pump as you do not need it. If the city water pressure is lower than that the high pressure setting on your pump and your pump is switched on, your pump is running trying to increase coach plumbing pressure, and that effort is being absorbed into the lower pressure city water line which is why the pump can't meet it's high pressure cut off.
Try this: Detach the city line, run off your onboard water tank and see if the pump operates correctly using the onboard tank? If so, reconnect the city water and turn off your 12 v. pump.
Dan
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12-01-2014, 02:42 PM
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#6
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Winnebago Camper
Join Date: Sep 2010
Location: Groves,TX
Posts: 11
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2005vectra, mine jusst did the same thing. I had just added water to the tank. Pump would not shut off. Turned pump switch off. Opened faucet, turned switch on and it was full of air. After filling all lines pump shut off. I think it was air in the lines.as I had run it dry. Good luck.
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12-01-2014, 02:49 PM
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#7
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Winnebago Camper
Join Date: Jun 2012
Location: Spicewood Texas (West of Austin)
Posts: 11
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Sounds like either a bad pump or there is a vacuum leak on the suction side of your pump. Since you have already replaced the pump, you can check this by eliminating all fittings like a the screen bowl and the 4-way valve. Remove the screen and connect the suction hose directly to the pump. Then put the other end of it in a bucket of water and see if it still continues to run. If it does, you have a bad pump. If it shuts off, you have a vacuum leak between the pump and the FW tank.
My Shurflo SmartSense 5.5 did the same thing and when I replaced it, it was discontinued.
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Scotty and Kristen, Airedales Dagny and Wyatt
2007 Newmar Mountain Aire 4528, 450 HP ISM, Allison 4000, 8 Trojan T-105's
2014 F150 4x4 Crew Cab Platinum 157" WB
Roadmaster Blackhawk 2, RVI2 Brake System
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12-01-2014, 02:58 PM
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#8
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Winnebago Camper
Join Date: Jun 2011
Posts: 19
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Your pump should only be used when you are using your on board water, thats water in your Coach's holding tank.....If your coach's tank is empty and you turn the pump on it will not shut off as there is no water to pump, just air......If I'm reading it right you are currently on city water. You do not use your pump as the water is pressurized from the outside tap.
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12-01-2014, 08:59 PM
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#9
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Winnebago Master
Join Date: Sep 2005
Posts: 962
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I had the exact same behavior. The pump would not shut off ... I had noticed that the pump would "spurt" once in a while ... then gradually more frequently ... until finally it would not stop ...
There were no leaks ...
The selector switch for "TANK FILL" was defective .. it had failed after 10 years ... regardless of where it was turned it was diverting water back into the tank ...
It cost me a couple hours of labor for the tech to find the problem.
Replacement of the selector switch cured the problem.
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12-02-2014, 05:20 AM
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#10
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Winnebago Owner
Join Date: Feb 2008
Posts: 181
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X2 on the selector switch. Cycle the switch several times with no pressure and make sure it is all the way to city water when hooked up and fill when filling water tank. Fixed mine after cycling several times.
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12-02-2014, 08:19 AM
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#11
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Winnebago Master
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 2,737
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My '05 Vectra had the same issue. The check valve in the pump was bad. I knew this to be the case because with the pump off the potable water tank would fill over time.
Air, as already mentioned, will cause this same problem. Don't forget to run the inside and outside showers to purge the air, and the toilet. ALL the lines must be purged.
__________________
Rick & Melissa Young & Dawson (RIP), 2011 Meridian 40U, FL XCL, ISL 380HP/DEF, Al 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox TruCenter & tow equip.,EEZTire TPMS.
Servants On Wheels Ever Ready. Best job we ever paid to do  . (full time volunteers)
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12-02-2014, 08:54 AM
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#12
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Winnebago Camper
Join Date: Sep 2011
Posts: 34
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When on city water supply & valve on city supply a defective valve it seems it would fill water holding tank. This is not happing. My valve will fill tank & transfer to city, all seems to be o.k.
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12-02-2014, 12:44 PM
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#13
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Winnebago Camper
Join Date: Sep 2011
Posts: 34
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its is amazing what a good night sleep does. reread all post in water pump and re checked all suggestion. I believed there was a air lock in filter on in let of water pump. all is working fine. thank you all 
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12-03-2014, 11:47 AM
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#14
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Winnebago Master
Join Date: Jun 2013
Location: Full-timer/volunteer w/SOWERS
Posts: 2,737
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Quote:
Originally Posted by 2005VECTRA
its is amazing what a good night sleep does. reread all post in water pump and re checked all suggestion. I believed there was a air lock in filter on in let of water pump. all is working fine. thank you all |
 I love a great ending to a good problem!
I thought it was the selector valve too so I replaced it. NG. The tank still filled. There is a check valve in the pump that is supposed to prevent this.
Don't forget to keep an watchful eye on the basement compartment hanger bolts. They like to break  .
__________________
Rick & Melissa Young & Dawson (RIP), 2011 Meridian 40U, FL XCL, ISL 380HP/DEF, Al 3000 MH, 2014 Honda CR-V, SMI AF1, Blue Ox TruCenter & tow equip.,EEZTire TPMS.
Servants On Wheels Ever Ready. Best job we ever paid to do . (full time volunteers)
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