Central heating not comin on ?

Hi there I have a back boiler , the trouble is that i put a new radiator in , i can get the down stairs radiators back on ,But the up stair ones wont come on , I have drained the system , lots of times ,I have bleed the them, but still not coming on if u could would b good , thanks Danny

Danny
October 2009

Could be the circulation pump or thermostat, for which you need an electrician, or (as happened to me this year), simply an airlock. Plumber told me to turn off all rads. Then turn on rad nearest the boiler (the first in the lineup). Bleed the rad if necessary, and when that rad heats up fully, turn it off and turn the next one on. When I had turned on and off all the rads in the house, finally turn them all on together. Was a right pain, and took ages, but it worked!

Alice M
October 2009