ᐅ Underfloor heating on the first floor is no longer working.
Created on: 29 Sep 2020 11:02
Q
qwertzuiop
Hello, we need some help.
The underfloor heating on the first floor is no longer heating, but it still works in the ground floor and basement.
The pressure gauge shows 1.2 bar. The heating system was serviced at the beginning of the year. I suspect that our 5-year-old godchild might have adjusted some valves.
I noticed that when I turn the red valves in the ground floor to a vertical position, the supply pipe on the first floor gets warm, but that’s all.
Could it be that something is incorrectly adjusted?
See pictures.
The underfloor heating on the first floor is no longer heating, but it still works in the ground floor and basement.
The pressure gauge shows 1.2 bar. The heating system was serviced at the beginning of the year. I suspect that our 5-year-old godchild might have adjusted some valves.
I noticed that when I turn the red valves in the ground floor to a vertical position, the supply pipe on the first floor gets warm, but that’s all.
Could it be that something is incorrectly adjusted?
See pictures.
Q
qwertzuiop4 Oct 2020 15:03Mycraft schrieb:
No, unfortunately it’s not that simple. “Open” also means just 0.25 turns. You can’t visually identify that, and turning it without understanding won’t get you anywhere. Small update: I’ve now vented the floor six times, in the mornings and evenings over three days, and look, it’s running again.
But not at 100%, some rooms are cooler, some warmer, so it’s quite uneven. If you close the red valves on the ground floor, logically it speeds up the floor above.
Could it also be that the pump is no longer providing enough pressure?
Or that the valve inserts are sticking? See picture 1. I noticed some move freely when you press the pin in, but others are stuck tight. I’ve already sprayed some oil on them to help them move.
I also found that the screws shown in picture 2, which are on the supply line, are all loose. What is their purpose exactly?
Or could it also be because we have different blue caps since some were broken? Where can I get new ones? I already asked if they can be purchased separately, but apparently, they are only available with a new heating circuit manifold—that is, the blue caps.
T
T_im_Norden4 Oct 2020 16:15Do the metal parts at the bottom have a scale?
That is probably the flow rate.
That is probably the flow rate.
Q
qwertzuiop4 Oct 2020 16:41tomtom79 schrieb:
Before you start adjusting things randomly, you need to understand what effect they have. Usually, you only turn it once to set a flow rate depending on the length of the system, which then controls the heat output. Don’t you have room thermostats?No one is adjusting things randomly here, but yes, we do have room thermostats. However, we decided not to connect the electric actuators for financial reasons.Q
qwertzuiop4 Oct 2020 16:43T_im_Norden schrieb:
Do the metal parts at the bottom have a scale?
That should be the flow rate. No, they don’t. You can see that in the first three pictures.