Help sought - One Rad not heating

kenco

Some guidance sought please?

Radiator in kitchen no heating but all the rest in the house ok. I thought it might be trapped air. No hissing then I opened the value. Allowed some water not much out and closed it back up.

Opened the inlet valve fully and turned the heat back on but nothing doing (no heat in the inlet pipe)

Logic SE18IE boiler

Any help appreciated here

Happy New Year

cnocbui

Try opening the outlet valve fully as well, taking the knob off the inlet valve and using it on the outlet valve, first checking on how much open it was by noting what it takes to fully close it first.

kenco

https://www.boards.ie/discussion/comment/118409456#Comment_118409456

Sorry should have said I have both valves fully open

Appreciate your response here

Wearb

Try turning off some nearby radiators to see if that heats then.

cnocbui

Closing off all other rads should allow full pump pressure on that rad and circuit, which might clear a blockage, which seems like a possible cause.

kenco

Thanks will give that a go and see how it gets on

kenco

Right turned off the downstairs Rads (X 3) and there was some heat in the previously cold rad . Lukewarm no more

Should I turn off the upstairs rads to and see if that gets it going?

Wearb

Yes. If it heats up properly then, you'll need to balance the system. Start by turning off the otheres one at a time. When it heats up, you might have found the greedy radiator, which will shorten the time spent balancing.

kenco

https://www.boards.ie/discussion/comment/118429326#Comment_118429326

Thanks, I balanced them years back so no harm going again. Appreciate your reply here

kala85

what is involved in balancing or what does it mean?

Is it important to do?

Wearb

https://www.boards.ie/discussion/comment/118431854#Comment_118431854

Only really needed if having trouble with rads. Lots of YouTube videos on it.