- This topic has 8 replies, 2 voices, and was last updated 27 years, 7 months ago by
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: the pop-off valve on my water heater keeps going off . ive replaced it and the top thermostat. any suggestions on a fix?:First try checking the incoming pressure with a simple pressure gauge,If the pressure seems to befine (80psi or less) then check to make sure you do not have a closed loop system. This is usually the case if you have a circulating pump.Look for a check valve on the incoming cold side of the heater or possibly a pressure reducing valve or backflow preventer.All of these devices cancreate a closed loop system therefore allowing thermal expansion to exist. If this is the case simply add an expansion tank inside the loop to absorb the expansion. I hope this Info helps
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: the pop-off valve on my water heater keeps going off . ive replaced it and the top thermostat. any suggestions on a fix?:First try checking the incoming pressure with a simple pressure gauge,If the pressure seems to befine (80psi or less) then check to make sure you do not have a closed loop system. This is usually the case if you have a circulating pump.Look for a check valve on the incoming cold side of the heater or possibly a pressure reducing valve or backflow preventer.All of these devices cancreate a closed loop system therefore allowing thermal expansion to exist. If this is the case simply add an expansion tank inside the loop to absorb the expansion. I hope this Info helps
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: the pop-off valve on my water heater keeps going off . ive replaced it and the top thermostat. any suggestions on a fix?:First try checking the incoming pressure with a simple pressure gauge,If the pressure seems to befine (80psi or less) then check to make sure you do not have a closed loop system. This is usually the case if you have a circulating pump.Look for a check valve on the incoming cold side of the heater or possibly a pressure reducing valve or backflow preventer.All of these devices cancreate a closed loop system therefore allowing thermal expansion to exist. If this is the case simply add an expansion tank inside the loop to absorb the expansion. I hope this Info helps
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: the pop-off valve on my water heater keeps going off . ive replaced it and the top thermostat. any suggestions on a fix?:First try checking the incoming pressure with a simple pressure gauge,If the pressure seems to befine (80psi or less) then check to make sure you do not have a closed loop system. This is usually the case if you have a circulating pump.Look for a check valve on the incoming cold side of the heater or possibly a pressure reducing valve or backflow preventer.All of these devices cancreate a closed loop system therefore allowing thermal expansion to exist. If this is the case simply add an expansion tank inside the loop to absorb the expansion. I hope this Info helps
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: the pop-off valve on my water heater keeps going off . ive replaced it and the top thermostat. any suggestions on a fix?Check pressure, especially at night…might be excessive. Make sure thermostat is working. Usually relief valve goes off because it is doing its job, not because it need replacing.
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: the pop-off valve on my water heater keeps going off . ive replaced it and the top thermostat. any suggestions on a fix?Check pressure, especially at night…might be excessive. Make sure thermostat is working. Usually relief valve goes off because it is doing its job, not because it need replacing.
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Because of the way the thermostats work, I would expect the bottom one to be defective rather than the top one. Also the elements can fail in such a way that they never turn off, but continue heating at a low rate and eventually overheat the tank and cause the discharge.: the pop-off valve on my water heater keeps going off . ive replaced it and the top thermostat. any suggestions on a fix?
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Because of the way the thermostats work, I would expect the bottom one to be defective rather than the top one. Also the elements can fail in such a way that they never turn off, but continue heating at a low rate and eventually overheat the tank and cause the discharge.: the pop-off valve on my water heater keeps going off . ive replaced it and the top thermostat. any suggestions on a fix?
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