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Old 02-05-2011, 02:05 PM   #1
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no hotwater

I bought a 2005 winnebago voyage two weeks ago. Since that time I have been trying to get hot water. I have tried with my bypass off and on and the diverter both ways. My water heater is working,but runs ht for about 2 sec. then turns cold. Any suggestions are welcome.
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Old 02-05-2011, 02:25 PM   #2
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What brand hot water heater do you have?
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Old 02-05-2011, 02:27 PM   #3
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I am not at the RV, but Iam sure it is Atwood.
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Old 02-05-2011, 02:43 PM   #4
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Hi hogride,
Are you trying the water heater on electric or propane? How do you know the water heater is heating water?
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Old 02-05-2011, 02:56 PM   #5
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Suspect a bad check valve at the back of the water heater. This is a fairly common problem.
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Old 02-05-2011, 04:27 PM   #6
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If you get some hot water but then it stops, odds are you have a water mixing valve open somewhere. The possible palces are the shower (water turned off at the head instead of the faucet), outside shower/water (again, water turned off at the head rather than the faucet), or a failure in the heater bypass system. In a Winnie, the bypass relies on a check valve in the hot outlet and they are notorious for seizing up and stopping hot water flow. The brief spurt of hot water suggests that a little hot leaks through, but not enough to keep up a stream.
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Old 02-05-2011, 04:37 PM   #7
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Here's another vote for check valve. There are 2 of them on the water heater. In my case my check valve prevented any flow on the hot water side.
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Old 02-08-2011, 03:07 PM   #8
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It is definitely the check valve. Winnebago puts one on the cold water input side.
After you disconnect the plastic lines from the check valve, you will need a 1" box end wrench to remove it. It is installed extremely tight and usually next to a storage compartment that you can barely reach it from. I have replaced 2 on
Winnebago's (Possible, not easy)
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Old 02-15-2011, 09:56 AM   #9
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This is a common problem for dealers. 99% chance that your outside shower faucet is turned on. If you turn on faucet and turn off shower head, the cold water will draw over to hot side. If you go outside and turn off the faucet. I believe you will cure your problem
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Old 02-15-2011, 11:41 AM   #10
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You mentioned you have a diverter valve and a bypass valve. On the Winnebago's I have seen there is a diverter valve which is the bypass valve.
You can download the plumbing diagrams for your coach here: Plumbing Diagrams

This is a drawing I made of my water heater plumbing.

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