One more question my system has how water recirculating pump does help or should I still turn on the preheat? I should mention that it has thermostatically controlled pump ( i think there is box that is connected to the pipe with a romex wires connected to it) and the high temp board is set to low temp and dwh is set to 140. I will be setting the dwh down to 120 I think this is the cause the issue. I have seen this issue start right after the high temp board was installed and I was told that dip switch 7 and 8 was for hot water, which as you know on the high temp boards switch 8 is high temp and low temp setting. I also learned that if you have high temp set then you must have remote installed to controlled dhw. If I turn on the preheat how much more enery will that use?
This post was edited by an admin on February 25, 2013 8:02 PM.