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Old 09-30-2017, 08:38 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, 09:09 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, 10:59 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, 11:19 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, 11:38 AM   #5
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Quote:
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, 11:23 PM   #6
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Quote:
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.
Jayco class A's don't have hot water tanks. This is a class A forum.
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Old 10-01-2017, 07:13 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, 10:42 AM   #8
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Water tank....

Quote:
Originally Posted by Vicr View Post
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, 01:03 PM   #9
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Water pump?

Doesnít it have a Truma tankless? Our 17 35S has the Girard which isnít perfect. Do you know of anyone with a Precept thatís 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, 01:18 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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