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Old 05-16-2015, 12:08 PM   #1
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suburban hot water tank

I have a new 2014 Cherokee 274dbh I'm getting about 3 minutes of hot water then water goes cold. I have tried tank on gas an electric and both on at same time. I checked the valves on the tank. cold is open hot is open bypass is closed. gas is firing up when calling. acts like tank is not full but I open the relief and water comes out so I'm at a loss. any suggestions thanks
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Old 05-16-2015, 12:20 PM   #2
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I have a new 2014 Cherokee 274dbh I'm getting about 3 minutes of hot water then water goes cold. I have tried tank on gas an electric and both on at same time. I checked the valves on the tank. cold is open hot is open bypass is closed. gas is firing up when calling. acts like tank is not full but I open the relief and water comes out so I'm at a loss. any suggestions thanks
Make sure your outside shower taps are not on whilst the outdoor shower wand itself is turned off at the wand. If you have the detachable type outdoor shower, make sure the taps aren't turned on. These scenarios allow cold water to be drawn into the hot water line while you are showing inside.

Now on the inside shower:

Also, if this is your first travel trailer experience, you learn to take navy showers. You wet yourself, turn off the water at the shower wand...soap yourself, shampoo hair......then turn the water back on at the wand and rinse off. Then turn all the taps off.


You only have a small tank and won't be able to shower like you do at home.

You can also check that bypass valve again and make sure it is completely closed. The handle has to be perpendicular to the actual bypass pipe. It makes a T across the pipe. Some people confuse this since the bypass pipe isn't running the same direction as the inlet/outlet pipes.

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Old 05-16-2015, 12:24 PM   #3
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thanks I will check the out side shower. we had a old Starcraft before this one the tank seemed to last longer than this one by leaps and bounds. the old unit didn't have outside shower in it so I will check it out. thanks
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Old 05-16-2015, 12:36 PM   #4
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just checked outside shower it was off at the valves so that wasn't the issue. thanks for the info I would not thought of checking that out for cross contamination
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Old 05-16-2015, 12:38 PM   #5
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just checked outside shower it was off at the valves so that wasn't the issue. thanks for the info I would not thought of checking that out for cross contamination
You might want to check the bypass valve again as shown in the illustration above that I added. It's also possible to have a bad valve that's not fully closing too.
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Old 05-16-2015, 12:40 PM   #6
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Also make sure the inside shower faucets are turned off or the same thing will happen as if the outside faucets were left open.
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Old 05-16-2015, 12:43 PM   #7
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Also make sure the inside shower faucets are turned off or the same thing will happen as if the outside faucets were left open.
Aaah, good suggestion. I assumed RC08 meant the water went cold after 3 minutes of showering...but they might have meant washing dishes.

Many times though, the inside shower wand has the drip feature that lets you know the taps are still on, even if shut off at the wand....since the water is dripping out of it.
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Old 05-16-2015, 12:49 PM   #8
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Yeah, I noticed a big puddle of water under the back of my camper and said, "Oh, #@$%, what has happened now." Turned out not too bad. My wife had cut off the outside shower with the shutoff button but left the faucets on. So there was the normal drizzle you always see when you use the shutoff button. She had closed the door to the outside shower, so I thought at first it was leaking out the bottom of the camper, but it was actually just coming out the shower compartment door.
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Old 05-16-2015, 01:21 PM   #9
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well I have tried all the things that have been mentioned nothing has helped thanks for taking the time to give me the info you did. I just took a shower and was out of hot water before I could barely get wet. it was Luke warm at best in less than 2 minutes. so I will turn the issue over for warranty I guess. Thanks again for the help.
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Old 05-16-2015, 01:25 PM   #10
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This does smack of a bad valve.
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