LPG
Friday, December 6, 2013 @ 3:31 PM
I doubt if the formula has changed , with the age of your heater it could be a dirty pilot light not warming the thermocouple enough or the erosion on the thermocouple tip has reached the point where it is still good enough to conduct electric but is short enough not to be in the flame correctly or a combination of both. A clean and a TC will put it right.
this work should be done by some one knowledgable on these things , not sure on the part price or availability but the brico in Vera has new heaters for 59€ at the moment so might just be cheaper to replace.