my boiler seams to have caught fire or experiance extreme heat internally. all the black plastic air pipes in front of the heat exchange have melted or caught fire. it started by the system showing a fault. f28 and f29. the system had 0 bar pressure. so i filled the sytem to 1bar. but still had the same problem. so i opened the boiler cover and found that upper part of the boiler was burnt and there is alot of carbon deposit. i dont know what could have caused this, please help me find the cause and i also dont know if other parts of the boiler are damaged due to the high heat present.

jiten patel, February 2009

sounds like the combustion chamber seal common faut get vallint involved as they were changing f.o.c.

mazmon, March 2009

Refer back to makers this boiler should not fail to create that sort of damage

a, February 2009