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Old 04-11-2016, 07:32 PM   #15
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That mixing valve would be my first removal item on a new trailer. My brother in law has to remove and clean it at least twice a season. It is worthless.
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Old 04-11-2016, 07:54 PM   #16
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We have removed ours due to problems with it but if you do, be aware that these water heaters operate at a higher temp than a normal water heater, which is the whole point of the mixing valve. Without it in the system water at the faucets can get really hot.
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Old 04-12-2016, 08:40 AM   #17
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IF the service department at Desert Autoplex decides to fit us in this AM to replace mixing valve I'll ask if winterizing with the bypass could have caused the problem.

Has anyone taken the valve OFF and if so, how??? Note, this doesn't happen in our 1953 Flying Cloud!!!
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Old 04-12-2016, 08:41 AM   #18
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How did you take it off???
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Old 04-12-2016, 01:28 PM   #19
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How did you take it off???
On ours it looks like the mixing valve is attached to the water heater tank via a threaded nipple. To remove you would back the hot and cold lines off the valve, and then turn the valve counter-clockwise by hand (or with some large channel-locks etc.) until the threaded nipple is free of the tank. Clean up the teflon tape and pipe dope, and replace. If the nipple stays in the tank and is usable, so be it.
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Old 04-12-2016, 03:27 PM   #20
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Very long morning. Bottom line. Mixer valve is out, been by-passed. Mechanic tried a new valve but it didn't work either. Hot water heater works just fine without it. Turns out Airstream isn't using that model Aitwood in the newest trailers now. (ours is 2014). Highly recommend Desert Auto Plex in Mesa, AZ for Airstream repair! Eric took us with no appointment and didn't give up until I had hot water!!! Back to being a happy camper!
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Old 04-12-2016, 04:19 PM   #21
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Great news, thanks for the update!
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Old 04-12-2016, 04:33 PM   #22
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There has never been a mixing valve made that works. They require far more maintenance than they are worth. They clog from sediment in the hot water tank or stick from water conditions.

Removal is the best suggestion unless you have very young children that might get burned. Another idea of Government to protect us from ourselves.
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Old 04-12-2016, 04:38 PM   #23
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Ps. Camping World said a new mixer valve would be around $300 just for the part. At Desert AP is would have been $123!

Post note. It was not determined if the problem was actually the mixer valve as replacing it with a new one didn't solve the problem. The only solution was to by-pass it.
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Old 04-12-2016, 04:42 PM   #24
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Ps. Camping World said a new mixer valve would be around $300 just for the part. At Desert AP is would have been $123!

Post note. It was not determined if the problem was actually the mixer valve as replacing it with a new one didn't solve the problem. The only solution was to by-pass it.
So your hot water works now at all faucets, outside shower etc.? As already mentioned, I guess caution is advised, as these water heaters make hotter water . . .

Caveat Natator !!!

PS -- could you take a photo of the work-around where the mixing valve was? Thanks.
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Old 04-12-2016, 08:35 PM   #25
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Look up ''Low hot water flow'' by 762x51 in the plumbing section
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Old 04-12-2016, 09:04 PM   #26
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http://www.airforums.com/forums/f445...ow-138765.html

Here is the link to that thread, although I don't understand those valves.

Thanks streaminwild.

FWIW
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Old 04-12-2016, 09:21 PM   #27
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http://www.airforums.com/forums/f445...ow-138765.html

Here is the link to that thread, although I don't understand those valves.



FWIW
The valves isolate the water heater, so you don't fill it up with antifreeze. Some people blow out the lines with air as well. Thanks OTRA15 for posting the thread for everyone
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Old 04-12-2016, 09:28 PM   #28
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The valves isolate the water heater, so you don't fill it up with antifreeze.
. .
For which newer units have a single bypass valve?
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