Help Needed

[puzzledbimbo]

Hi guys wonder if someone can help. My central heating system seems to be running ok but 2 of my down stairs raidiators are not kicking out any heat, I have tried bleeding them and that doesn't seem to be the problem, what else could it be?

And yes before anyone asks I have got them turned on.

Many thanks

 

[Biguns]

Try turning all the others off, what happens then?

 

[puzzledbimbo]

thank you, that worked, is there a reason for this happening?

 

[PRS1]

your system needs balancing properly.
have a look in the FAQ's

 

[Biguns]

If you have turned all the rads back on and everything is back to normal it suggests that the increased flow/pressure through the affected 2 rads has disloged a blockage. In which case you may want to consider a flush out and treat with inhibitor.
If when you turn the other rads back on the affected 2 then go cold again the system may need balancing, and or a flush.
How old and what type is system, does it get serviced, does it have inhibitor added etc, etc

 

[Biguns]

Have a look through this lot

//www.diynot.com/forums/viewtopic.php?t=175736