Check Temp & sediment
1 Does it happen over night? Does it happen every day? If it happens sometimes it may be excess water pressure. They fill the "water tower" over night and sometimes over pressurize. May need to install a pressure guage and check it about 5 am. Pressure should be be 50-70 psi. 2 You may want to pull a sample of water from the drain on the heater. Check the temperature with a meat thermometer. Now lift the lever on the relief valve and take a water sample from the top of the tank. Check the temp. If the temp is above 170 degrees that may be your problem. ( need to make sure the heater is at normal operating temp. Flame is out). You may have a calcium build up on thermostat in the tank. 3. You may have a lot of sediment in the tank and the "dip tube" is pushing to it the top. Once the releif valve "lifts",sediment can get in the seal.
|