Why is my boulter camray 5 boiler gushing out black smoke?
My boiler was fixed approximately 6 weeks ago. They replaced a nozzle, filter, fire valve and oil pump. Now my boiler is gushing out thick black smoke out of the outside flue part and the fumes are seeping into the house from the garage where the boiler is. Any suggestions what I need to do
Helen, January 2011