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pilot light?

i have a saunier duval sd 623 combi and i am having promlems getting the pilot light to stay lit. it was working fine then it turned itself off now it wont stay lit i am getting really stressed can you help please

Tom
March 2009
Saunier DuvalHeating, Home Heating Systems
most likely thermocouple faulty. if you dont want to replace thermocouple there is a method of bypassing the thermocouple.

joseph
March 2009
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