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water heater t and p leaking

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andyh1995

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Sep 9, 2020
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the tank is 6 years old and have not had it leak out of t and p since it was purchased. recently replaced the thermocouple and as I was turning it on I lit the pilot and forgot to put it to a setting. so the next day (only the pilot has been lit for like 12 hours. I get a text saying we had no hot water. turned the heat on and we noticed the t and p was leaking. why? with it only being the pilot did the tank not turn off when it got to a certain tempature and caused the t and p to trip?
 

breplum

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T and P's can drip with age. Trip the lever to clear out any crud on the seal.
Once in a while we do just end up replacing ones that go bad.
Must diagnose with more details: Pressure on main line, PRV with no bypass can all cause relief flow/drip.
 
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