I have a firebird 90 combi about 6 years old. It has been serviced about 4 times over this period. About 3 months before the last service we noticed yellowish dust around the boiler and kitchen. It's been checked for leaky flue, seals etc, no luck.
Gone around it with a gas sniffer and watched it in the dark with a torch still could not see where the dust comes from. It also has a carbon monoxide detector directly over it and it does not move
Anybody come across this before, suspect it may have a split casing that only leaks on start up and expansion seals it when temperature builds up.
Any suggestions appreciated really doing my head in now.
Gone around it with a gas sniffer and watched it in the dark with a torch still could not see where the dust comes from. It also has a carbon monoxide detector directly over it and it does not move
Anybody come across this before, suspect it may have a split casing that only leaks on start up and expansion seals it when temperature builds up.
Any suggestions appreciated really doing my head in now.