Air-water heat pump current consumption and data

Really strange, I'll write you something so it comes back up again.

Could it be that your [üv] has a dead shot and that's why the fluctuations are happening.

Yes, please
The overcurrent valve? That part is completely shut off. That's how it should be.

According to what I have read in the forum, the valve is defective. Do you perhaps still have some in the heating circuit distributor?

:p , there aren’t any inside

At an outside temperature of 9°, my heating shut off earlier, the cycle started on 24.12.

21.01.21 10:22:08	no faults
24.12.20 04:04:10	no faults

Flow temperature	24.9°C
Return temperature	25.8°C
Return setpoint	24.5°C
Hot gas	38.0°C
Outside temperature	9.1°C
Average temperature	2.1°C

...and I called my heating technician today to have the return flow sensor replaced to rule out that it is not due to a defective return flow sensor.

I sent him the screenshot. At first, he said it was because of the closed radiators that are then opened by the ERRs. After I said that all the ERRs have been open since 20.12., there was no further explanation.

[ATTACH alt="DC664E0E-2AA2-41DC-AB9A-542F181BF416.jpeg" type="full"]56397[/ATTACH][ATTACH alt="B80ABE3A-8596-45DB-8F26-1F36512794BA.jpeg" type="full"]56398[/ATTACH]

: Are there other possible causes for the stupid return curve? Any ideas? Because the heating technician is skeptical that it is due to a defective sensor.