ᐅ The underfloor heating in one room is not turning on.

Created on: 23 Jan 2019 19:59
K
Kaliz01
Hello everyone,

The underfloor heating in the children's room does not turn on when we switch it on. However, it has turned on by itself two or three times. We have no idea why.

In the bedroom, the heating is usually running at full power and only very rarely turns off – here, too, we don’t know why.

Do you have any idea what might be causing this? The rooms do not seem to be mixed up. We have a Vaillant gas boiler. Could the issue be related more to the plumbing side, or could it be something with the electrical system connected to the heating manifold?

Best regards!
K
Kaliz01
23 Jan 2019 20:30
Could be. They definitely didn’t take into account that the electrician also has to install control cables in the HVAC unit.
Knöpfchen23 Jan 2019 20:33
He should actually remember that on his own.
There are probably cables there as well; it can happen that one or even several circuits are mixed up.
K
Kaliz01
23 Jan 2019 20:39
Ah, I see. But you won’t have to open up the floor again for that, right? How much do you think this problem is worth in euros, basically how much would it cost to fix it? At the moment, we are withholding the final payment to our builder.
Mycraft23 Jan 2019 20:55
No, the floor will most likely not have to be replaced. It is 99% a matter of wiring and configuration.
K
Kaliz01
23 Jan 2019 21:11
That is already very relieving!
But that sounds like quite some tinkering. You have already tried it once. Since then, at least the underfloor heating in the attic hallway has been working. Is it normal for underfloor heating to be weaker in some parts of a room than in others? One half of our living room is quite cool, while the other side feels noticeably warm.
G
garfunkel
23 Jan 2019 21:18
If it is warm in some parts and cold in others, there is air in the heating circuit. The heating system would need to be bled.