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Old 01-02-2011, 05:02 PM   #1
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hot water

I have a 08 Bounder 38F with an Atwood 10 gallon gas/electric water heater. We arrived here in FL yesterday. The problem is that I have only warm water in the coach. The water at the heater is hot. I have checked the obvious ( outside faucet) and it is closed. Somehow the hot and cold water are still mixing. Any suggestions would be "warmly" welcomed.
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Old 01-02-2011, 05:24 PM   #2
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Is this happening at ALL faucets?
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Old 01-02-2011, 05:40 PM   #3
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check things like the water heater bypass valve did it maybe get partially closed. How about the main shower is it shut off at the head rather than the faucet?
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Old 01-02-2011, 07:29 PM   #4
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Quote:
Originally Posted by bdpreece View Post
check things like the water heater bypass valve did it maybe get partially closed. How about the main shower is it shut off at the head rather than the faucet?
I second checking the hot water bypass valve. It may be partially open.
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Old 01-03-2011, 06:26 AM   #5
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The water is warm only at all the faucets and the hot water bypass is completely closed. The main shower is not shut off at the shower head. Could it be the mixer valve that comes on these hot water heaters?
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Old 01-03-2011, 06:53 PM   #6
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Check your outside shower to make sure both hot and cold are tured off. If the valves are open, but the shower head is shut off, you may be getting mixing at the valve. Same is true anywhere else if a mixing valve is open but the outlet valve is closed.
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Old 01-03-2011, 09:38 PM   #7
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What model heater is it? It may be one that superheats the water and then mixes hot and cold at the tank outlet (Atwood XT).

If not the XT, you might have a failed check valve in the bypass plumbing. The right sort of failure could let hot/cold mix.
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Old 01-04-2011, 02:31 PM   #8
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The heater is an Atwood and does have the mixing valve on the back. I think that is the culprit
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Old 01-04-2011, 04:21 PM   #9
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Lot of problems with those mixer valves.
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Old 01-05-2011, 12:42 PM   #10
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It very well may be the mixing valve but in my case it was the bypass valve leaking slightly and allowing cold water to mix with the hot coming out.

It had only been used two or three times in 7 years since we full time and it was the last thing I thought of.
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Old 01-05-2011, 03:00 PM   #11
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There are two or three things to check assuming it's not the psuedo 10 gallon job (1 more on that)

The one more is the mixing valve mentioned above by Tinker

The other 3 are as follows:

Bypass valve If you have the 3-valve system is the crossover valve (Bypass valve) CLOSED? If you have a one valve system is it fully "Seated" (not turned half way)

Shower: If your shower has a shower head cut off, Did you leave the faucet valves open and the cut off closed?

Outdoor shower (What I call the dog shower) Same thing
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