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Why does my ferroli Modina 102 continue to try and ignite?

Why does my ferroli Modina 102 continue to try and ignite ?

I have just had the pump replaced, the ignition sparks and the burners ignite, however it continues to spark, and so cuts the gas off.

The signal to the PCB seems to be fine all else seems ok !
Al Malloy, December 2008
it is the flue venturi, you need to get someone to fit a new one should cost about £80-£120..........is your hot water going hot then cold then hot then cold

emmet oneill, December 2008
check for reverse polarity
check the flame rectification electrode and lead is ok

ricky, December 2008
link Click here to see other fixes for Ferroli.