Water Heater drip sound and overheated?? - Page 2 - Escape Trailer Owners Community

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Old 09-13-2014, 09:21 PM   #11
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Originally Posted by cpaharley2008 View Post
Sometimes the pressure relief valve will leak, stand back and release it (watch out for hot water) and then shut the valve off, and then it should reseat itself, repeat if necessary until the drip stops, it should go away, this happens particularly in new units.

I've don this a few times when my trailer was new, works well enough . Now the trailers 3 summers old I haven't had to re set it .
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Old 09-13-2014, 10:57 PM   #12
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Our Scamp did that when we first bought it. I called them and asked and they said it was normal, leftover oils on the burner from the manufacturing process or something like that.
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Old 09-13-2014, 11:05 PM   #13
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Wow that's all good news. The flakes seemed very light and fell apart when touched.

I'll give it another test tomorrow and wiggle the pressure release before turning it on.

Thank you all !

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Old 09-13-2014, 11:11 PM   #14
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That looks like soot of some sort, happens to new items when first exposed to heat, just blow them away.
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Old 09-13-2014, 11:13 PM   #15
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Ours did the same thing for the first year or so, as for the pressure relief valve dripping ours only did that when we first fired up the hot water tank so I would open the hot tap at the sink and take some pressure off then it was fine.
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Old 09-14-2014, 08:23 AM   #16
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Ours did the same thing for the first year or so, as for the pressure relief valve dripping ours only did that when we first fired up the hot water tank so I would open the hot tap at the sink and take some pressure off then it was fine.
How would that release pressure when your water supply would replenish what you removed? The pressure will be the same before and after, would it not? I always thought there was some debris in the relief valve that needed cleansing that caused the drip. Just like in your residential water heater, you are supposed to periodically open and close that same valve to keep it clean of debris, but running the water would not.
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Old 09-14-2014, 09:27 AM   #17
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It would release the pressure, if you left your pump off when not in use. This is what we usually do, mostly out of habit, as the pump in our last sticky always seemed to give a noisy grunt when not needed, especially in the middle of the night.
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Old 09-14-2014, 09:36 AM   #18
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It would release the pressure, if you left your pump off when not in use. This is what we usually do, mostly out of habit, as the pump in our last sticky always seemed to give a noisy grunt when not needed, especially in the middle of the night.
Jim - we too leave our pump off exactly as you describe. Grunt - a perfect term for that seemingly random on/off to wake or keep one awake. Interesting thing is that the relief valve only seems to ever want to drip on the first heat up cycle of the water heater and once I draw a small amount of hot water out of it it rarely does it again.
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Old 09-14-2014, 10:02 AM   #19
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It would release the pressure, if you left your pump off when not in use. This is what we usually do, mostly out of habit, as the pump in our last sticky always seemed to give a noisy grunt when not needed, especially in the middle of the night.
True, I understand that now, I was not following that avenue.
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Old 09-14-2014, 04:25 PM   #20
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Pump on or off, relieving pressure by letting out some water works. The pump will only restore pressure to its switch setting, but the problem is the pressure going higher than that due to a rise in temperature of the water in the heater after the water was last run.

I'll admit that I didn't understand the problem until I read the section in the linked water heater manual, which describes the situation pretty well. An accumulator (usually used to smooth out variations as the pump cycles or to prevent water hammer) should provide the same "cushioning" function as the air space in the top of the water heater.
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