just had a vokera compact 29E bolier fitted today, it bangs when the gas ignites. installer said the inside caseing was maybe a bit loose. i've never heard any other boilers do this?????
tell the installer to come back and fix it then, if the casing is loose you may leak fumes, and it's the installers responsibility to ensure the boiler is working correctly. i'd suspect that the spark gap needs checked / adjusted and also the ignition pressure.
Ian
January 2010
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