Hot water comes out of pressure relief valve. I’ve already replaced old valve thinking that was the problem. Reliance water heater is 8 yrs old and my next step is to change the pilot generator. Sometimes the burners turn off automatically and sometimes not. Some advice is needed here.
If the burner is firing AFTER the setpoint temperature is reached then turn off the fuel supply immediately and have a licensed professional check it for you! Has there been any recent alteration done to the water supply piping? ie: water meter, check valve installed? Is there any reason for your incoming water supply to be greater than usual? If the problem is a failed thermostat then have it rectified IMMEDIATELY!
Thanks for the advice Mike M. What part of the water heater is the thermostat located in? Do I need to take that part to my local plumbing store to have it replaced? At the present time I’m using the manuel shut-off when I accumulate sufficient hot water.
I got your reply, Art. Thanks to you and M. Murray for your time to answer my request. I don’t consider myself to be a fool so I’m taking to heart what both of you are telling me. May God bless you both for your wise counsel.