Underfloor heating, one room not heating up

[Dan Robinson]

Loop length?

Pipe Size? Looks 14mm though.

Boiler type?

Pump size?

Pump speed?

All other loops set up correctly.

Flow and return temperature?

Etc etc.

 

[stardanny]

I'll stick with good old radiators system... Ufh give too much trouble....

Daniel.

 

[PullerGas]

I'll stick with good old radiators system... Ufh give too much trouble....

Daniel.

Fitted by someone that knows what they're doing Danny boy, there's no better system!!

 

[Daveydub]

Take the white operator head off the non-working and check the movement of the pin beneath. Compare it to one of the others. If it is stuck in the almost off position this may be your problem. Bit of gentle tapping on the pin & smear of silicone grease to it when it is working ok.