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Old 11-27-2014, 09:05 PM   #1
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Water heater falling short

Alright we have had our camper since May with multiple trips under our belt but I'm still learning.

Since going out we have had no issues with our suburban on demand water heater. The last two trips the hot water seems to fall short, it won't last an entire shower as it has before. My anode rod is showing the center core but thought that only has to do with the longevity of the unit.

What could be causing this lack of hot water. It lights up no problem and seems to run, but even leaving it on the entire day it still runs out before a single shower is over


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Old 11-27-2014, 09:39 PM   #2
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I hate hater water. Try loving water instead. Open your pressure relief valve and let any captured air out.
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Old 11-27-2014, 09:40 PM   #3
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Suburban has an on demand water heater?
I've not seen such a thing.

Model number?

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Old 11-27-2014, 09:45 PM   #4
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Sorry fat fingers and cold
Beverages makes it hard to focus..............

I may be misspoken on being on demand.

I open the pressure valve each time we hook up to ensure there's no air, and run each faucet to clear out any air in the lines.




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Old 11-27-2014, 09:47 PM   #5
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Quote:
Originally Posted by Thekipkers View Post
Sorry fat fingers and cold
Beverages makes it hard to focus..............

I may be misspoken on being on demand.

I open the pressure valve each time we hook up to ensure there's no air, and run each faucet to clear out any air in the lines.




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If it's the electric / propane model you can turn on both heating sources for quicker recovery.

Model number would help us identify what you have.

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Old 11-27-2014, 09:49 PM   #6
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No electric/ propane only, I'll check for a model number in a sec


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Old 11-27-2014, 09:51 PM   #7
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Quote:
Originally Posted by Thekipkers View Post
No electric/ propane only, I'll check for a model number in a sec


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I believe sw6d is what you should have then.
Quote:
Originally Posted by Thekipkers View Post
No electric/ propane only, I'll check for a model number in a sec


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Old 11-27-2014, 10:02 PM   #8
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That is correct


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Old 11-27-2014, 10:06 PM   #9
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Yeah 6 gallons on propane only will be tough to keep good hot water when taking showers.

Unfortunately a sw6de would have been a better option.

Practicing HW conservation takes some time to get used to, especially with propane only fired water heater.

Unless the at temp switch is cutting out early there isn't much else to go wrong.



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Old 11-27-2014, 10:14 PM   #10
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Have you done anything with the bypass valve(s) behind the water heater, that is allowing cold water to mix in with the hot water line (this is very common). This will make the hot water seem to run out quicker.

Also, another culprit that can allow cold water to mix in with the hot water line, is when you leave the outdoor shower taps on, but cut it off at the shower wand head instead.......and forget about it. I would check this too, along with the bypass valve being completely shut behind the water heater.
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