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Old 05-29-2018, 02:21 AM   #1
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Brand: Thor Motor Coach
Model: Axis 25.5
State: Illinois
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THOR #10078
2018 Axis 25.5 - No Hot Water

I recently took my new Axis 25.5 out of storage and when I try to run hot water I get nothing hot or cold. When I have cold turned on I get cold. This is true for holding taking and city water.

I have the tankless hot water heater. As such there does not seem to be a hot water bypass valve.

I picked up the RV in December and had the dealer winterize it while I was doing paperwork.

Any thoughts on what I could have missed when de-winterizing my Axis?

Thanks,
David
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Old 05-29-2018, 02:31 AM   #2
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Originally Posted by tuba143 View Post
I recently took my new Axis 25.5 out of storage and when I try to run hot water I get nothing hot or cold. When I have cold turned on I get cold. This is true for holding taking and city water.

I have the tankless hot water heater. As such there does not seem to be a hot water bypass valve.

I picked up the RV in December and had the dealer winterize it while I was doing paperwork.

Any thoughts on what I could have missed when de-winterizing my Axis?

Thanks,
David
There may be a cutoff to stop water from entering the water heater supply. That would be why you get no water of any kind when you open a hot tap.
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Old 05-29-2018, 11:04 AM   #3
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First of all: what model year is your Axis? Does it have the demand water heater (tankless) or the old model with a tank?

With a tank your valves may be setup for winter bypassing the water heater. If you do have a tank do not turn the electric heater on until you know you have water going through it--you may burn up the element. (That is a way to know if you have a tank or not as the tankless units don't have the electric option.)
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Old 05-29-2018, 12:32 PM   #4
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Brand: Thor Motor Coach
Model: Axis 25.5
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THOR #10078
JamieGeek,

It is a 2018 25.5 with the tank less hot water heater.

It seems like water is never getting to the hotwater heater if I turn any of my faucets to hot I get nothing (not even cold water). I can't seem to find a water cut off valve for the hotwater (at least not where the water pump is). The only on/off switch I can find is on the heater itself, that I can only access by opening the outside door. It was left in the on position after the dealer winterized it.

Thanks,
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Old 05-29-2018, 12:43 PM   #5
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Is that panel below the pantry removable? Perhaps the valve you're looking for is in there (from pictures that looks like a cold air return vent..take it off I bet you'll find all kinds of stuff back there--on the 24.1 that is where the water heater valves are).

Is you water tank under one of the beds? Another possible valve location.
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Old 05-29-2018, 10:54 PM   #6
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Jamie,

I removed the panel this afternoon. I didn't see anything at first but got on my back and traced the water lines up behind the panel I found two hidden valves (one into the tankless HW heater and the second one going out) they were both closed. I opened them up and had water flowing out of the hot sides of the faucets.

Thanks for your help.
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Old 05-29-2018, 11:27 PM   #7
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Do you have power to the control panel for the tankless hot water system?
Ours just kind of sits there quietly...
As soon as it gets a call for hot water: it lights up, and things start looking busy!
I'd check to make sure that you have power to whatever it is that lights it up also! Happy hunting, and good luck!
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Old 06-01-2018, 12:52 AM   #8
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Thumbs up

I got hot water out of the hot water spigot now. Thanks to everyone who offered assistance.
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