hi , i had a new combi (worcester 24i junior) boiler and radiators installed in march, everything worked fine eventually.
now that the cold weather is here, ive started using the rads for the 1st time since april, but the last radiator(the only rad with no thermostat) on the system(closed system) located at the bottom of the stairs is stone cold, checked all the rest and they all seemed fine except for another one in the room located above the stairs, this one is half hot on one side and luke warm on the other, i'm sure the pipes lead down to the stone cold one. also noticed 2 of the other 6 radiators lost heat after a couple hours , not ending up cold but tepid. any ideas?
now that the cold weather is here, ive started using the rads for the 1st time since april, but the last radiator(the only rad with no thermostat) on the system(closed system) located at the bottom of the stairs is stone cold, checked all the rest and they all seemed fine except for another one in the room located above the stairs, this one is half hot on one side and luke warm on the other, i'm sure the pipes lead down to the stone cold one. also noticed 2 of the other 6 radiators lost heat after a couple hours , not ending up cold but tepid. any ideas?