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Old 09-14-2019, 01:17 AM   #1
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Brand: Thor Motor Coach
Model: Axis 24.1
State: Washington
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THOR #15551
Instant Water Heater in Thor Axis 24.1 2018 model

Hi all, I'm on the road and have discovered my instant water heater will produce only warm water (and then only after running water for 2 minutes or so). At one time the temp got up closer to the 124 degree setting but only in the bathroom.
I'm not an expert on these devices but if anyone has seen an operating schematic or has some suggestions for solving this problem, I would appreciate the help!!
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Old 09-14-2019, 01:34 AM   #2
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Model: 2018 24.1 AXISSIXxSIX
State: Arizona
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THOR #13932
Use the hot water alone, no cold.
Open that tall narrow pull off panel next to the fuse block, across from the bathroom.
There's a valve on the bottom of the water heater, you'll see it easily with a flashlight.
Turn the valve all the way right, all the way left, and set it about center.
Set your temp at 108 or whatever you like without using any cold water.
You can experiment with valve position later.

Other people will have other ideas, but this 2 minute fix cured our 2018 24.1 hot water problem.
(no one bothers with the cold faucet. It just Jacks things up. Use hot alone when you want hot water.)
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Old 09-14-2019, 01:38 AM   #3
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You also need 40 - 50 psi of water pressure. If you are on city water and arenít using a regulator, try turning on your water pump and see if that gives you stabile hot water.

Also..... I never use the cold water. We set ours to 105 and the water temp stays dead in when taking a shower.
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Old 09-14-2019, 02:36 AM   #4
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Brand: Thor Motor Coach
Model: Vegas 24.1
State: Virginia
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That happened to us with our 2018 Vegas 24.1 earlier this year ... the water pump wasnít building enough pressure to keep sufficient flow through the hot water heater. There might have been some air in the line and/or plastic in the water filter. It worked fine when hooked up to city water.
A few weeks later, and after cleaning the pump filter a few times and after some rough road drives, it miraculously started working the night before I took it back to our dealer for warranty work. The dealership checked it out, but couldnít replicate the issue.

Iíll try the valve suggestion if it happens again.

Fully agree with the comments about running straight hot, no cold.
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Old 09-14-2019, 07:09 PM   #5
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Brand: Thor Motor Coach
Model: Axis 24.1
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THOR #15551
Well, thanks for the input. Did the valve trick (I wasn't smart enough to determine where it was originally set) and it worked. Turned the temp down to 110 degrees and it worked using the pump. Haven't tried city water yet but for the first time actually got hot water in the kitchen. Will repost if the problem resurfaces. I will adjust the valve to see how it impacts flow and response time. Good stuff!
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Old 09-14-2019, 07:49 PM   #6
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Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 617
THOR #13932
OP:

Axis/Vegas Mods...1,2,3 Go.

Is the best place for changing your 24.1 to fit you.
And
Go to the sticky section and download Ed's manual.
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Old 09-14-2019, 08:03 PM   #7
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Model: Tiffin Wayfarer 24 BW
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Quote:
Originally Posted by Cgmonkman View Post
Well, thanks for the input. Did the valve trick (I wasn't smart enough to determine where it was originally set) and it worked. Turned the temp down to 110 degrees and it worked using the pump. Haven't tried city water yet but for the first time actually got hot water in the kitchen. Will repost if the problem resurfaces. I will adjust the valve to see how it impacts flow and response time. Good stuff!
Glad to hear that you're no longer taking cold (or lukewarm) showers!
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Old 09-16-2019, 07:33 PM   #8
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THOR #15551
Thanks. I had already done that and pertnear wore it out!!!
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