How do I light the piolet?

[andymars]

Hi,

Im having trouble getting my piolet light lit on my britoney combi boiler. When I turn the hot water tap on or the radiators the boiler makes a continous humming noise. There is obviously no hot water produced and it driving me mad. Normally a light comes on to indicate it is lite and it lights automatically but the light wont come on! Help

 

[corgigazza]

Check if air is coming out of flue if not flue fan is possily faulty.