Underfloor heating - Topmeter shows no flow

Hey,

maybe someone here can help me. Attached is a picture of the HKV on the ground floor. The second to last top meter, so in the living room, the float is all the way at the top, almost at 0 flow, all the others as you can see are at 1. For the right three there is a thermostat responsible for the living room and kitchen, which is located on the door of the living room.

When I stand without shoes in the hallway, in the guest WC and in the kitchen (all tiles), I can feel the warmth in the floor. However, in the living room (laminate) the warmth is rather not noticeable. A thermometer is placed in the living room (opposite the living room door) and constantly shows around 22-23 degrees. The heat pump is actually set to 22 degrees.

So much for the situation. Anyone have an idea about this?

Thanks!

And what is the problem? The temperatures are reached, the heating works. Everything is okay so far.

Well, what do you mean problem. I just want to try to understand why it is the way it is. If there were a separate thermostat for it that was off, I would understand that. But as it is, there is one where the three right top meters are connected but show different readings. And of course the certain foot warmth is not felt.

Red cap up, turn the indicator half a turn and then it should work. It can get stuck if not used for a while or after a new installation (flush with cold water). We had that with a few indicators as well.

Thanks

I had actually already turned it. But then probably only the transparent part on top and not the bottom.. I think...

New installation? The move-in was mid-July 20, so maybe now in total about 3/4 of a year ago. Um, how can you flush that?!

After installation, the pipes are flushed with cold water and checked for leaks. When you start heating, the rubber seals can sometimes stick. So it's not you who should flush... Simply turn the entire indicator and not just the sight glass. For this to work, the red cap must be removed.