ᐅ 3 underfloor heating circuits in the bathroom, 1 not working, what should I do?
Created on: 6 Dec 2018 07:30
K
KingSong
Hello everyone,
We have now been living in our new house for a week. Our main bathroom is equipped with underfloor heating consisting of 3 heating loops. The spacing of the heating pipes is 5cm (2 inches). Unfortunately, I noticed that one of the heating loops is not warming up, and it happens to be the one under the toilet :-(
What I have tried so far is setting all 3 loops on the manifold to the maximum flow rate, currently at 4 liters per minute (1 gallon per minute). The ERR function is deactivated. The room temperature setting on the heating system itself (heat pump) is set to 22°C (72°F).
What can be observed is that the floor areas with the other 2 heating loops are warming up, but the tiles above the 3rd heating loop remain completely cold. The building handover has already taken place, but the heating system was accepted on the condition that the heating itself works properly, while the heat distribution still needs to be assessed.
Does anyone have any ideas on what else I could try? I assume I can rule out a kinked pipe in the heating loop if I see visible flow on the related flow meter, right?
Thanks in advance,
Best regards
We have now been living in our new house for a week. Our main bathroom is equipped with underfloor heating consisting of 3 heating loops. The spacing of the heating pipes is 5cm (2 inches). Unfortunately, I noticed that one of the heating loops is not warming up, and it happens to be the one under the toilet :-(
What I have tried so far is setting all 3 loops on the manifold to the maximum flow rate, currently at 4 liters per minute (1 gallon per minute). The ERR function is deactivated. The room temperature setting on the heating system itself (heat pump) is set to 22°C (72°F).
What can be observed is that the floor areas with the other 2 heating loops are warming up, but the tiles above the 3rd heating loop remain completely cold. The building handover has already taken place, but the heating system was accepted on the condition that the heating itself works properly, while the heat distribution still needs to be assessed.
Does anyone have any ideas on what else I could try? I assume I can rule out a kinked pipe in the heating loop if I see visible flow on the related flow meter, right?
Thanks in advance,
Best regards
KingSong schrieb:
Hello everyone,
[...]
best regardsHave you unscrewed the actuators on the valves? Give it a try.
R
readytorumble6 Dec 2018 09:01I wouldn’t make any adjustments there at first.
What does the building certifier / general contractor / plumber say?
What does the building certifier / general contractor / plumber say?
So, do you have three flow meters for the main bathroom, all controlled via an ERR?
I would probably first turn the flow to zero on the two "working" ones and only set the "defective" one to 4 liters (4.2 quarts)... all other controllers in the house also at zero. Then test whether turning the controller in the bathroom actually moves the flow meter... in our case, you can also hear the water flowing... then check if the area heats up... the other two should remain cold.
I would probably first turn the flow to zero on the two "working" ones and only set the "defective" one to 4 liters (4.2 quarts)... all other controllers in the house also at zero. Then test whether turning the controller in the bathroom actually moves the flow meter... in our case, you can also hear the water flowing... then check if the area heats up... the other two should remain cold.
fragg schrieb:
Did you unscrew the actuator on the valves? Try that.Exactly... also try swapping the actuator from a "working" heating circuit to a "defective" one in the bathroom to check the flow temperature.
I removed the actuators from the three heating circuits, so the ERR has no impact and the cold area still does not warm up.
The entire heating system is completely off; when using the flow rates from the heating load calculation, the maximum temperature I reach inside the house is 17°C (63°F).
The entire heating system is completely off; when using the flow rates from the heating load calculation, the maximum temperature I reach inside the house is 17°C (63°F).