My Ferroli Modena 80E combi boiler fires up, then a few seconds later switches off. Then it fires up then it turns off again. Repeatedly, on both central heating and water. but this only happens when its windy it happened once before engineer came and change a very small component
but i dont know what it was or where it was i am trying to identify the bit and where it goes on the boiler can anyone help

mary, February 2008

more than likely the ventura in the fan body u/s at the worst fan or pressure switch u/s

steve the plumber 07831 123 129, March 2008

Could be a few things Mary but if when its windy i would say either the Air Pressure Switch faulty or the Fan Venturi needs cleaning. Good Luck.

Mark, March 2008