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10-28-2017, 08:57 AM
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#1
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Member
Join Date: Mar 2017
Posts: 60
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Constant humming sound from water pump
Currently out camping and the water pump is making a constant humming sound. Any ideas? This is on a 2017 Rockwood Minilite 2504s
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10-28-2017, 09:00 AM
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#2
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Senior Member
Join Date: Oct 2017
Location: Virginia Beach, VA
Posts: 504
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Quote:
Originally Posted by znate80
Currently out camping and the water pump is making a constant humming sound. Any ideas? This is on a 2017 Rockwood Minilite 2504s
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Sounds like it might be trying to pump. Are you on city water or pumping from your tank?
If on city water, turn off the water pump.
If on your tank, look for an open spigot. You might be losing water somewhere. OR your pump is defective and is not shutting off when it gets your system up to pressure.
__________________
Joe
Current: 2022 Keystone Cougar 26RBS
Past: 2020 Rockwood MiniLite 2205S
Past: 2018 Flagstaff MicroLite 21FBRS
Past: 2005 Flagstaff Classic 625D
TV: 2016 Ford F-150 3.5 EcoBoost
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10-28-2017, 09:06 AM
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#3
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Member
Join Date: Mar 2017
Posts: 60
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Now on city water. But DW was using the restroom before I got the city water hooked up. The pump pressured up from tank water and then began to constantly hum afterward. Nothing open and no leaks anywhere
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10-28-2017, 09:40 AM
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#4
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Senior Member
Join Date: Jan 2017
Location: KS
Posts: 2,369
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You sure it's the pump? My water connection makes noise if pressure is too high. It stopped with my regulator. I still have issues when I blow it out.
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10-28-2017, 09:45 AM
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#5
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Member
Join Date: Mar 2017
Posts: 60
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Quote:
Originally Posted by dbledan
You sure it's the pump? My water connection makes noise if pressure is too high. It stopped with my regulator. I still have issues when I blow it out.
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Positive only makes noise when I turned the pump on and not on city water at the time. Only tank water
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10-28-2017, 09:50 AM
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#6
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Senior Member
Join Date: Oct 2017
Location: Virginia Beach, VA
Posts: 504
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Are you carrying enough water in your tank for the pump to build up enough pressure to shut off?
If so, then the pressure cut off on the pump is likely not working or is set incorrectly, allowing the overpressure bypass to recirc water to the suction side.
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Joe
Current: 2022 Keystone Cougar 26RBS
Past: 2020 Rockwood MiniLite 2205S
Past: 2018 Flagstaff MicroLite 21FBRS
Past: 2005 Flagstaff Classic 625D
TV: 2016 Ford F-150 3.5 EcoBoost
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10-28-2017, 09:51 AM
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#7
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Senior Member
Join Date: Jul 2013
Location: BoCoMo
Posts: 2,784
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Quote:
Originally Posted by znate80
Positive only makes noise when I turned the pump on and not on city water at the time. Only tank water
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Shut the pump off when not in use, you do not need to leave it on. Nor should you leave it on when not using water from the fresh water tank. The pump is wanting to 'pump' and so it is energized and humming.
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2013 Forest River Salem Hemisphere SBT312QBUD
2001 CrewCab F-250 7.3 PowerStroke Diesel
SuperChip, BTS transmission, 6.0 Trans Cooler
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10-28-2017, 09:52 AM
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#8
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Senior Member
Join Date: Oct 2017
Location: Virginia Beach, VA
Posts: 504
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Quote:
Originally Posted by Brother Les
Shut the pump off when not in use, you do not need to leave it on. Nor should you like it on when not using water from the fresh water tank. The pump is wanting to 'pump' and so it is energized.
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And if you do this, AND you have the possibility of a small leak somewhere, SHUT OFF the water heater. So you don’t burn it up.
__________________
Joe
Current: 2022 Keystone Cougar 26RBS
Past: 2020 Rockwood MiniLite 2205S
Past: 2018 Flagstaff MicroLite 21FBRS
Past: 2005 Flagstaff Classic 625D
TV: 2016 Ford F-150 3.5 EcoBoost
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10-28-2017, 12:41 PM
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#9
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Senior Member
Join Date: Sep 2016
Location: ALASKA (World's Biggest Campground)
Posts: 6,713
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Quote:
Originally Posted by znate80
Positive only makes noise when I turned the pump on and not on city water at the time. Only tank water
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If you are certain that there is adequate water in the FW tank, and it is "humming" without a CW connection, there is a possibility the pump is in by-pass mode due to an air lock created by previous residual CW pressure. Try fully disconnecting the CW hose, remove the screen and stick your finger into the CW inlet and press the check valve button, stand off to the side though because if there is pressure there you can wind up getting a bath. If water under pressure shoots out, release all the pressure. Then try the pump again. Let us know how you make out.
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"...exhaust fluid? We don't need no stinkin' exhaust fluid"
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10-28-2017, 02:29 PM
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#10
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Senior Member
Join Date: Jan 2017
Location: KS
Posts: 2,369
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Ok. I think I know what you are talking about and I believe D W is on to what needs to happen. I had a similar issue when winterizing today. The pump would build pressure in the lines but kept humming and would not shut off until I turned the switch off. Mine was because it was sucking air into it when I ran out of antifreeze and it stopped when I did the above steps.
I have also had the inverse problem where CW fills the fresh tank because the pump valve sticks open. To fix that you need to disconnect CW and then turn on pump to build pressure. Then when you reconnect CW no more problem.
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10-28-2017, 02:34 PM
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#11
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Site Team
Join Date: Mar 2014
Location: Grayson County, Texas
Posts: 21,556
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Quote:
Originally Posted by marinerjoe
And if you do this, AND you have the possibility of a small leak somewhere, SHUT OFF the water heater. So you don’t burn it up.
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Under what circumstance(s) could a 'small leak somewhere' cause the water heater to drain completely?
__________________
2015 FR Wildcat 295RSX / GMC Sierra
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10-28-2017, 02:42 PM
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#12
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Senior Member
Join Date: Oct 2017
Location: Virginia Beach, VA
Posts: 504
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Quote:
Originally Posted by Mr. Dan
Under what circumstance(s) could a 'small leak somewhere' cause the water heater to drain completely?
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It wouldn’t. However, if there’s a leak in the water system, I’d rather not have the chance for it to cause the heater to fail. And how hard is it really to flip the switch(es) off?
__________________
Joe
Current: 2022 Keystone Cougar 26RBS
Past: 2020 Rockwood MiniLite 2205S
Past: 2018 Flagstaff MicroLite 21FBRS
Past: 2005 Flagstaff Classic 625D
TV: 2016 Ford F-150 3.5 EcoBoost
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10-28-2017, 02:44 PM
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#13
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Member
Join Date: Mar 2017
Posts: 60
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Quote:
Originally Posted by D W
If you are certain that there is adequate water in the FW tank, and it is "humming" without a CW connection, there is a possibility the pump is in by-pass mode due to an air lock created by previous residual CW pressure. Try fully disconnecting the CW hose, remove the screen and stick your finger into the CW inlet and press the check valve button, stand off to the side though because if there is pressure there you can wind up getting a bath. If water under pressure shoots out, release all the pressure. Then try the pump again. Let us know how you make out.
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I’ll try this when I get back to the trailer and let you know what happens
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10-28-2017, 06:42 PM
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#14
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Member
Join Date: Mar 2017
Posts: 60
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Quote:
Originally Posted by D W
If you are certain that there is adequate water in the FW tank, and it is "humming" without a CW connection, there is a possibility the pump is in by-pass mode due to an air lock created by previous residual CW pressure. Try fully disconnecting the CW hose, remove the screen and stick your finger into the CW inlet and press the check valve button, stand off to the side though because if there is pressure there you can wind up getting a bath. If water under pressure shoots out, release all the pressure. Then try the pump again. Let us know how you make out.
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Ok so I did as you suggested and there was a lot of pressure. Water came squirting out like a fire hose. That did not solve the issue however. So I removed the water screen on the pump it self and found a bunch of whiteplastic shavings. I am guessing from lines that were cut during manufacturing After cleaning and putting on it works perfect now. Thank you all for the replies.
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10-28-2017, 06:55 PM
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#15
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Site Team
Join Date: Jan 2007
Location: Goodyear, Arizona
Posts: 33,776
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Quote:
Originally Posted by znate80
Ok so I did as you suggested and there was a lot of pressure. Water came squirting out like a fire hose. That did not solve the issue however. So I removed the water screen on the pump it self and found a bunch of whiteplastic shavings. I am guessing from lines that were cut during manufacturing After cleaning and putting on it works perfect now. Thank you all for the replies.
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#1 cause of low water pressure, Especially in new RVs.
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10-28-2017, 08:19 PM
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#16
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Senior Member
Join Date: Jan 2017
Location: KS
Posts: 2,369
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Quote:
Originally Posted by znate80
Ok so I did as you suggested and there was a lot of pressure. Water came squirting out like a fire hose. That did not solve the issue however. So I removed the water screen on the pump it self and found a bunch of whiteplastic shavings. I am guessing from lines that were cut during manufacturing After cleaning and putting on it works perfect now. Thank you all for the replies.
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Thanks for your follow up when you figured it out. It will help the next person who has the problem.
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