Recent content by rdbatk

I do have the sides open of the heater off, and the burner can is not leaking

I did replace the thermal regulator and the bypass valve, but the heater is still turning off. I do not see any lights on the back of the control display. I did forget to mention that after I turn it off, and turn it back on, it does the same cycling. Any clues what it might be? I wish an...

It is a stand alone unit

I have a Pentair Mastertemp 250 heater that turns on, heats the water (so gas is flowing), but shuts off after about 30 minutes, and red light shows up "service heater" There is no error codes. The heater is about 8 years old. I replaced the flue sensor about 4 years ago, and last year replaced...