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Old 09-30-2017, 07:38 AM   #1
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Water pump?

My water pump wants to run much longer than it should. Has anyone had this problem? I turned it off? Was that a bad idea?
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Old 09-30-2017, 08:09 AM   #2
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Welcome to the forum.

So, the water pump runs as expected when you open a faucet, but then runs for how long after you shut the faucet off? A few seconds? A minute? Does the pump eventually shut off?
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Old 09-30-2017, 09:59 AM   #3
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Sounds like a leak somewhere in the water system. Ours will hold pressure for a day or so, before it does a brief (a second or so) cycle to bring the pressure back up.
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Old 09-30-2017, 10:19 AM   #4
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If is when you first turn on the pump after setting up, it could easily be the pump filling the water heater tank. That takes a couple of minutes on my TT as it transfers several gallons from the FW tank.

If it gets up to pressure and holds (doesn't cycle on and off), then there probably isn't anything wrong. If it just keeps pumping, look for an open faucet somewhere, don't forget the outside shower, low points drains, or the pressure relief on the HWT.
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Old 09-30-2017, 10:38 AM   #5
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Originally Posted by bankr63 View Post
If is when you first turn on the pump after setting up, it could easily be the pump filling the water heater tank. That takes a couple of minutes on my TT as it transfers several gallons from the FW tank.

If it gets up to pressure and holds (doesn't cycle on and off), then there probably isn't anything wrong. If it just keeps pumping, look for an open faucet somewhere, don't forget the outside shower, low points drains, or the pressure relief on the HWT.
X2 also check check valve on city water fill
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Old 09-30-2017, 10:23 PM   #6
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If is when you first turn on the pump after setting up, it could easily be the pump filling the water heater tank. That takes a couple of minutes on my TT as it transfers several gallons from the FW tank.

If it gets up to pressure and holds (doesn't cycle on and off), then there probably isn't anything wrong. If it just keeps pumping, look for an open faucet somewhere, don't forget the outside shower, low points drains, or the pressure relief on the HWT.
Jayco class A's don't have hot water tanks. This is a class A forum.
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Old 10-01-2017, 06:13 AM   #7
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Sometimes if you don't purge the air out of the hot water heater, the tank will act like an accumulator. The air inside the tank gets compressed as more water gets pumped in, which would cause the pump to run extra.
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Old 10-01-2017, 09:42 AM   #8
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Water tank....

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Jayco class A's don't have hot water tanks. This is a class A forum.
One of the reasons that we got our 2018 Jayco Class A was because it DID NOT have a thankless hot water heater. There have been so many complaints and failures that Jayco has been replacing them with normal hot water heaters at no cost to the original owners.
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Old 10-01-2017, 12:03 PM   #9
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Water pump?

Doesn’t it have a Truma tankless? Our 17 35S has the Girard which isn’t perfect. Do you know of anyone with a Precept that’s had their changed by Jayco? Painting the new door for the Truma or a normal one to match our FBP is over $700.


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Old 10-01-2017, 12:18 PM   #10
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Our 2018 35S has the Truma water heater. We have been on the road since we picked it up in May and the Truma has worked flawlessly. We have boondocked about half the time and have no complaints about its performance whether dry camping or with hookups.
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Old 10-01-2017, 09:10 PM   #11
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I just wonder why trailer owners post stuff here when they don't know what equipment we have??
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Old 10-01-2017, 10:15 PM   #12
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My 2016 Alante Class A specs say I have a 6 gallon water heater. FYI
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Old 10-01-2017, 10:34 PM   #13
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Well your Alante might. Precepts don't. So do you have a tank or tankless. Have you looked or just read your specs which don't always mean that's what is installed. Anyway the OP doesn't even say what type of RV they have.
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Old 10-02-2017, 10:17 AM   #14
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I have a tank. I know Precepts are on demand.
Both Class A. Both Jayco.
How well does your system work? I leave my water heater on most of the time and now I'm thinking I'm wasting propane because we only use hot water when washing dishes or showering.
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Old 10-02-2017, 10:58 AM   #15
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Jayco class A's don't have hot water tanks. This is a class A forum.
Ever? I don't think I'd but a Class A if the only way to heat water was in a kettle. Thank God they invented the tankless; must have been tough before then.

OP didn't give a model or year.
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Old 10-02-2017, 11:44 AM   #16
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Just me, but I think I'd go easy on the people who are just trying to help the OP. He has a problem. Those trying to help may not understand, may not know everything about his particular model, especially when it's different than the others. But they are trying to help diagnose so he can fix the problem. Eventually, you bite them often enough or hard enough, and they stop trying to help.
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Old 10-10-2017, 11:24 AM   #17
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Welcome to the forum.

So, the water pump runs as expected when you open a faucet, but then runs for how long after you shut the faucet off? A few seconds? A minute? Does the pump eventually shut off?

It runs for 10-30 or even longer minutes. I finally go turn the battery over ride switch off for a few minutes. I have now turned the water pump off. And I'm not having any pressure problems.
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Old 10-10-2017, 11:28 AM   #18
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Welcome to the forum.

So, the water pump runs as expected when you open a faucet, but then runs for how long after you shut the faucet off? A few seconds? A minute? Does the pump eventually shut off?

It runs for 10-30 or even longer minutes. I finally go turn the battery over ride switch off for a few minutes. I have now turned the water pump off. And I'm not having any pressure problems.
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Old 10-10-2017, 12:35 PM   #19
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It runs for 10-30 or even longer minutes. I finally go turn the battery over ride switch off for a few minutes. I have now turned the water pump off. And I'm not having any pressure problems.
10-30 seconds delay between closing the faucet and the pump turning off sounds normal. The longer the pipe runs the longer it will take to fully re-pressurized after closing the faucets. The pumps have a pressure switch that needs to be satisfied before the pump is turns off.

I would be very concerned if you hear the pump pulse on and off periodically when not in use. That is a sign of a water leak.
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Old 10-10-2017, 12:46 PM   #20
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Vicr; I just wonder why trailer owners post stuff here when they don't know what equipment we have??


Well if you proper list what type of RV you have, that will make it easier for other members on this forum.
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