scor3E1990
2025-02-16 12:47:58
- #1
- Air pocket in the return line? From the storage charging line (where the expansion tank nailed to the ceiling is connected). The automatic air vent is positioned lower than the pipe.
The longer you look at it, the worse it gets. I can also well imagine that the entire system is not properly vented. The heat pump then does not remove the heat but continues to run due to the minimum runtime and eventually shuts off with a relatively high flow temperature.
The developer has made further corrections. Pictures above. However, there is still no hot water. Next week the certified Bosch heating technician is coming; let's see what he says about it. The heat pump is set to 23 degrees. Except for the main bathroom on the first floor, all rooms unfortunately only reach 17-18 degrees. Therefore, I still assume that something is not right here.