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3 years, 5 months ago

It looks water has come out of the T&P valve on my Hot Water heater. Should I care?

Hi,

I have a fairly new hot water heater. GE. With a 9 year warranty. Last year, it shut itself off, and I found that by leaving the cover off the bottom, it would stay on. I assumed some sort of short in the Thermocouple caused by the pressure of the cover plate against the fixturing, and just left it partially on.

Tonight I go downstairs, and it's wet underneat the T&P valve. Looks like it's possibly discharged a couple of times in the past week.

We've only been in the house 2 years.

Do I care? Is this a warranty thing? What should I do?
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jcaz | 3 years, 5 months ago
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Water heaters are designed to operate safely with a (T&P) valve to automatically release excessive pressure to prevent an explosion.

This valves should be tested annually to see if they are working. Apparently, your water heater's valve is working.

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jonceramic | 3 years, 5 months ago Report

Okay, so, it's working. That's one good thing.

But, here's my concern/thought process - Is it normal that it's needed. i.e. Are there just some days when you get some overflow?

Or, does it mean that the temperature control system on my Hot Water heater needs work/replacing?

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lamp1023 | 3 years, 5 months ago
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There is a possibility your water heater does not have the ability to get rid of the extra pressure from the expansion of the hot water. There are new one way valves in some communities that do not allow water to return to the city sewer lines. This could create extra pressure when there is a lot of hot water because the expansion has nowhere to go, except out the T&P valve. If this is the problem , you can have a plumber install an expansion tank (looks like a small air tank or propane tank) that allows the extra pressure to enter, then dissipate once the hot water is used. This could potentially be the problem.
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