In Reply to: Re: Plumbing Puzzle posted by steveVa on June 10, 2018 at 18:10:23:
To the best of my knowledge there is no temp balancing valve at the heater. As I said I installed the heater some years ago and know I did not add such a thing at that time. I would not be surprised you are correct the thermocouple may be going bad. WE will wait and see on your last statement! Would prefer it happen when I am there.