Underfloor heating air-water heat pump. House too warm when the sun shines

I have now turned it from four to five, slowly getting closer

Can you send a picture of yours? Mine only has a scale up to 500 mBar and I have tried both extremes, but nothing has changed.

Then please send a new DTA, let's see if anything changes already.

Coming shortly by email

Can you show a picture of yours?
Mine only has a scale up to 500 mBar and I tried both extremes, but nothing changed.

See attached

Thank you! It's so simple with + and -!

so!!!!!!!!
This morning the bypass valve of chewbacca123 was closed from 4 to 5 and
TADA, the return temperature now only rises after about 6 minutes. This means more heat is reaching the screed. The heat pump will now operate more efficiently. The heating curve needs to be adjusted, I would initially try 27-22-0. Otherwise it will get way too warm in the house
Here is the proof



Maybe even more if the bypass valve goes from 5 to 6 or is fully closed.
here again for comparison before:



The heating cycles are also longer in the first trend:



Now be brave for the next step!
The exciting question remains how the bathroom temperatures will develop. Through the measures taken so far, the flow rate could be increased from initially 1.5 l/min to 2.9 l/min.
I am curious...

What do these three numbers actually mean? For example, 27 22 0

Can you read out any heating (control), or do you need some kind of gadgets for that?