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Old 07-11-2021, 09:31 PM   #1
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Brand: Thor Motor Coach
State: Florida
Posts: 10
THOR #21123
Aria 3401 shower faucet replacement

Thank you for your help. I can't find this issue on the forums.
We have a 2020 Thor Aria 3401. Shower has a single control. One minor move of the control and we go from scalding hot to freezing cold.

Apparently others have had the problem. Thor has authorized replacing the single control with dual controls.

Our dealer thinks he may have to take the whole shower out to do that. We are checking with Thor to see if that is necessary.

Has anyone else replaced the shower faucet? And how did you do that??

If they have to take out the shower stall is there a better one on the market we could replace it with?

Thank you!!

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Old 07-11-2021, 09:45 PM   #2
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Model: Tiffin Wayfarer 24 BW
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Do you have a tankless hot water system?
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Old 07-11-2021, 09:56 PM   #3
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Yes, sir.
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Old 07-11-2021, 10:04 PM   #4
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Brand: Thor Motor Coach
Model: Thor Tuscany 40DX
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My Tuscany 2015 is quite similar to the ARIA. I had similar problems with
the single handle faucet too. I found improvement by adjusting the screws
near both the hot and cold lines going into the mixing chamber. Get access by removing the face plate from the faucet handle. Yes your dealer may be correct. On the Tuscany I would have to remove the stackable dryer and access the plumbing from the dryer side. Maybe the washer too?
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Old 07-11-2021, 10:12 PM   #5
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Thank you! I will offer that option to the dealer.Thank you.
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Old 07-12-2021, 08:48 PM   #6
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So I have a 2020 Aria 3901 and had the same issues. We had to access the faucet from the bedroom. Essentially, we had to pry the back of the panel off the bedroom wall along with the trim. Once that was off I was able to swap out the faucets. It wasn't that bad overall and took about 30 minutes.
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Old 07-12-2021, 09:08 PM   #7
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Thank you. Will look at the option.
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Old 07-14-2021, 03:05 AM   #8
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Brand: Thor Motor Coach
Model: Aria 3901
State: Idaho
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Hi,
I believe you said you had a "thankless" water heater. We have one in our rig as well and had the same problem. What happens is that when the hot is on and you try to adjust the cold to cool it down, the heater probably senses the drop in water pressure and turns off. You raise the temp on the wall and try again and the same thing happens but this time you get scolded when you try to cut the cold and the heater turns on again. Completely thankless situation

So what we do is set the temperature to 112F and just turn on the hot water, no cold. We find the water is at a good temp between 110 and 112 for a shower. When we are done, we put it back to the default 115/120 for everything else.

Wile parked and attached to the water supply, I keep my fresh tank full and turn on the pump. It just improves the pressure in all the fixtures. I turn off the pump when it does not cycle on and off while on city which means there is plenty of pressure in the bib.


Hope this helps.
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Old 07-14-2021, 01:27 PM   #9
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Very practical recommendations. Thank you very much.
They are putting in the dual control but I will also do this.
Having pump on even while connected helpful as well.

Thank you very much.
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