|Posted by hj on April 11, 19100 at 23:47:54:|
|In response to Re: Pressure Relief Valve|
T&P valves are creatures of habit. As long as the heater is hot and stays hot, they are comfortable. Although they should be tested at least once a year to keep them from getting too comfortable. However, when the heater gets cold, as it probably did when the elements and/or thermostat failed, then when the heater is hot again, they will often start leaking in protest to the change in temperature. My opinion is that you did not need both themostats and elements, but if you did, a new heater would have been more economical, and you would have gotten a new T & P valve. But in you present situation, replace the relief valve. I am sure it is long overdue for replacement anyway.
: I have an older water heater that recently had both elements and thermostats replaced. After this repair, the pressure relief valve began releasing water on a regular basis. Now, it starts an almost constant whine or whistle as soon as it heats up and continues until the valve is manually released or until the water is run for a while. The temperatures on the thermostats were set at about 140 when the plumber left, but I have lowered them to about 120 in an effort to get rid of the problem. I'm a little concerned that this problem did not manifest itself until the day after the plumber left.
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