The bottom left thermometer is the temp that concerns me. The primary circulator is controlled by hydrostat 3250 plus, it turns the primary on when the boiler reaches 125 degrees. The secondary circulates are controlled Taco 504 controller that turns on a Circulator when there is a call for heat. The outside reset is in the off position until I get the bugs ironed out. I really don’t know how the cir pushing rather than pulling could effect the thermomix? Stranger things have happened and I will move the primary cir if nothing else works.