I have -already- posted this query with uk.d-i-y NewsGroup, but it got no response!
Anybody familiar with the Ariston Dia combi? Ours is about 9 years old and has worked reliably. But now I notice the Red warning light (resettable button ) comes on occasionally.... I understand this glows to indicate failed electronic ignition pulse/s. After depressing this reset to douse the Red lamp, the ignition clicks and burner flames properly.... for some time, until the next failed call for igniting burner. But what do I do next to rectify this failure which happens unpredictably? Does this mean the gas pilot flame is going out intermittently? Kind advice requested. TIA Jim