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Old 09-29-2016, 04:28 PM   #1
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Water heater leak?


How do I diagnose water on floor around water heater? Came all of a sudden and I don't see any active leaks or drip spots






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Old 09-29-2016, 04:42 PM   #2
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Re: Water heater leak?


Looks like your relief valve may have opened up.
A few reasons why it can happen.
Temp. set to high.
Pressure surge if there's no pressure tank installed.
Valve defective.
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Old 09-29-2016, 04:48 PM   #3
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Re: Water heater leak?


Interesting. I don't see any drips though from the overflow tube. Have an electronic thermostat on it and temp is actually set down pretty low


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Old 09-29-2016, 04:49 PM   #4
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Re: Water heater leak?


So the question is, if it's not getting too hot why would there be a pressure surge?

Could it be anything besides the valve?


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Old 09-29-2016, 06:50 PM   #5
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Re: Water heater leak?


Open up the burner door and look inside for water. If you got any water inside time to purchase a new tank. When you do this also replace the expansion tank .
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Old 09-29-2016, 07:16 PM   #6
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Re: Water heater leak?


Regardless of the temperature setting (if not in vacation mode or off), it is possible to trip the temperature/pressure relief valve when the next tankful of water is heated. Tripping is more likely if there is no expansion tank and your house has a check valve or pressure regulator where the water supply first enters. You might have gotten away without tripping if there were pockets of air in the plumbing.

But I am going to guess that most likely the water heater has sprung a leak.

(You could put a cup or board under the re;ief valve downpipe to catch or divert any water coming out of that and better narrow down on the cause.)
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Old 09-30-2016, 09:56 PM   #7
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Re: Water heater leak?


I agree put a bucket under the T&P pipe. Wait and see what happens. Suspect that it is the T&P releasing. That too much water for it to be a leak and you not be able to see it.
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Old 10-02-2016, 10:18 AM   #8
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Re: Water heater leak?


Had your been AC is off? If it is, then for sure it's the tank or relief.

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