3 heating loops in the bathroom, 1 not working, what to do?

Hello everyone,

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best regards

Actuator on the valves unscrewed? Give it a try

Just let the [Heizungsbauer] come now and fix it.

I wouldn’t mess around with that at all for now. What does the BU/GU/plumbing guy say?

So you have 3 flow meters for the main bathroom, which are controlled by an ERR?

I would probably first set the flow on the two "working" ones to 0 and only the one on the "defective" to 4 liters... all other regulators in the house also to 0. Then first test if the top meter moves at all when turning the regulator in the bathroom... with us, you can also hear the water "flowing"... then see if the area heats up... the other two should stay cold.

actuator on the valves unscrewed? give it a try

exactly... also try switching the actuator from a "working" to a "defective" heating circuit in the bathroom for the flow temperature.

I unscrewed the actuators on the 3 heating loops, so the ERR has no influence and the cold area still does not warm up.....

The entire heating system is completely off anyway, if you use the flow values from the heating load calculation then I get a maximum of 17° in the house