I have a 28CDi combi boiler, when the water gets hot the pilot light keeps going out, so then the water gets cold. Does anyone know what the fault maybe. Cheers.
Three causes:-
1) Pilot light partially blocked making an unstable flame which easily blows out when the main burner shuts down--If pilot has a yellow tinged flame, clean it out
2) Pilot flame too low & not staying in contact with thermocouple probe--Adjust pilot size.
3) Early sign of the thermocouple begining to fail.--replace it.
Cledlyn
September 2008
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