Recent content by ptrx

i did, that's how i got to write "zero measurement at the terminals of the pump". : ) but, i found it! so for the other people after me: the boiler has two temperature knobs, one with a bath icon, and one with a radiator icon. apparently they can not be used at the same time, when they...

hi, here's what's going on: boiler in the attic, make: ACV Delta gas boiler, water is at 70 degrees Celcius, pressure is ok, everything seems fine, circulation pump: Grundfos ups 25 40 house thermostat, but connections are bridged to make shure it's on Problem: there's no...