I shut my water heater down for two weeks while on vacation. I turned the heater back on this afternoon and after running for about an hour the T&P valve opened up discharging water over the basement floor. Is this a common failure mode for this type of valve after the heater has been allowed to cool down? I've replaced the valve and am watching closely as it heats up again.
T&P Valve looking at two sides.
T&P Valve looking at two sides.
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