problem with boiler

[smeagol21]

while disconeecting radiotor to replace with a towel rail now boiler doest fire up when hot water required i have blanked off both ends of the radiator as the towel rail still hasnt been deliverered

 

[twgas]

could be the thingy playing up!!!!!!!!!!!!!!!!!

 

[spacethegas]

could be the thingy playing up!!!!!!!!!!!!!!!!!

dont be silly its far more likely to be a watumcallit.