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

So a ridiculously tight installation in a bathroom I have never seen before. A wall heating would be better, but of course it's too late for that now.

Is the 3 circuit sealed and filled? Is there warm water coming out at the manifold? You should be able to check that, right?

Due to hydraulic balancing or settings, the contracting party should also be the first to take action. For the question "can someone take a look at it," I would suggest registering in the pink forum. Such questions are constantly discussed there, and obviously many experts read along (as far as one can tell from a forum response...).

Hi

I guess it's a heating circuit that hasn't been flushed/vented properly.

Olli

I tried out this newly discovered button - to find images related to the topic.

From today’s perspective, the prevailing opinion here that a 5cm installation distance in the bathroom is not good looks a bit strange. After all, it is usually recommended in addition to underfloor heating here. Was your problem resolved?

Your flow temperature was calculated at 35°C. Does that work for you and does everything warm up as calculated in an energy-efficient way? Even if your installation didn’t work perfectly right away, more has been done in your case than in most "problem cases" here where it was installed by feel.