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Old 06-29-2015, 09:11 AM   #1
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Fixable? Too Hot water

The manual for the Atwood water heater shows a non-adjustable thermostat.

While I have not put a thermometer to it yet, the hot water is way too hot.

Is there a replacement, hopefully adjustable or at least reasonable (120F) thermostat?
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Old 06-29-2015, 09:21 AM   #2
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A simple fix, is to crack open the by pass line, the one in between the hot & cold line, test the hot water temp, still too hot, open a little more. Solved our problem with out much effort.

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Old 06-29-2015, 10:18 AM   #3
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Mike, we've have the same issue. Maybe because the water heaters so close to the bath. Doesn't have a chance to lose heat before the faucet. Have to try the bypass trick, thanks!
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Old 06-29-2015, 10:29 AM   #4
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Quote:
Originally Posted by buckeyejim View Post
A simple fix, is to crack open the by pass line, the one in between the hot & cold line, test the hot water temp, still too hot, open a little more. Solved our problem with out much effort.
That is the easy fix. I have not heard of any adjustable thermostats for these water heaters.
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Old 06-29-2015, 11:51 AM   #5
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Use the winter bypass as a mixing valve!
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Old 06-29-2015, 12:30 PM   #6
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All three of my trailers have had the same issue - a Coleman pop-up, an Outback, and now the Jayco. I think the high temp is by design - since there is only 6 gallons of hot water, you won't be using a lot of it to get the temperature you want. But you have to be careful. A child could easily scald themselves. (And yourself, too, if you aren't careful!)

The bypass valve seems like a good fix that I never thought of. I love this forum!
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Old 06-29-2015, 12:52 PM   #7
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The only negative I see with using the bypass is if you need to make a adjustment to the bypass while your standing soaking wet in the shower.


Otherwise an excellent suggestion


Or would just closing down the Hot Valve at the WH to restrict the flow a little bit serve the same purpose
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Old 06-29-2015, 12:57 PM   #8
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The bypass valve seems like a good fix that I never thought of. I love this forum!
Me Too
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Old 06-29-2015, 01:48 PM   #9
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The only negative I see with using the bypass is if you need to make a adjustment to the bypass while your standing soaking wet in the shower.
Otherwise an excellent suggestion
Or would just closing down the Hot Valve at the WH to restrict the flow a little bit serve the same purpose
You can't adjust the bypass valve easily. Mine is under the bed, behind an access panel.

But, it can be set to mix some cold water to prevent scalding.


From a theory standpoint opening the bypass valve fully will give you a 50/50 mix of water from the heater and unheated water. It'll take quite a few gallons of wasted water to get the temperature delivered to the nearest faucet 'Just right'.

YMMV

I'm going to shoot for nearest faucet (bathroom sink) to "I can keep my fingers in it, but wouldn't want to". That should give me good dishwashing temp at the kitchen sink (farthest faucet).


----------------


You'll have to mix a bit of cold water in anyway to get a comfy shower. Especially when the WH is at its hottest (just as it turns off the heat source).
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Old 06-29-2015, 02:08 PM   #10
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I like the bypass idea, but isn't that essentially the same as just cranking open the Cold Water tap at the same time as the Hot water? Or is this more of a solution for young kids that could potentially burn themselves?
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