one stone cold radiator

[lambokid123]

Hello everyone looking for abit of advice I've got a total of 6 radiators in my house 5 are all hot but the and 1 that is stone cold ive checked the trv pin and it doesn't seem to be stuck ive bleed the radiators and hasn't done nothing I turned all other radiators valves off on both ends of radiators and the 1 that wasn't working gets hot when the rest is turn off I had a new boiler fitted along with 3 new radiators fitted the radiator that is cold is brand new less then a week old along with boiler was all working until I turned heating off yesterday and when I turned it back on that 1 particular radiator didn't get hot looking for some help or advice has its cold in living room without it many thanks in advance

 

[exedon2]

If rad is working with others turned off probably a balancing issue.
As your boiler is only a week old get installer back as system needs correct balancing to work at its most efficient.

 

[lambokid123]

If rad is working with others turned off probably a balancing issue.
As your boiler is only a week old get installer back as system needs correct balancing to work at its most efficient.

ok thank you