My 1996 firebird boiler has been billowing black smoke and soot. I had it serviced last March. Called Engineer out in November when the black smoke/soot started and he 'fixed' it. three weeks later (last week) the motor packed in and it wouldn't fire. Had the motor replaced and yesterday it started billowing black smoke again.
1)Above it says that it may have the wrong nozzle? Is this expensive to replace?
2)Could it be the pump that is packing up and causing this?
So far this year, I have spent over 400 euro on this boiler. It has been serviced regularly since first installed. I am reluctant to spend any more reparing it as was hoping to have it replaced with a condenser boiler in the Spring. Would really appreciate any help/advice and pointers.