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my saunier duval combi boiler at 3yrs old quite suddenly has dropped in hot?

my saunier duval combination boiler has quite suddenly at 3yrs old dropped in water temperature. water pressure is good and gas pressure has no obvious fault. this seemed to follow a power cut (if possible). reaction time is the same but whole house draw points suffer the same.

paul wilson
May 2011
Saunier DuvalHeating, Home Heating SystemsSaunier Duval Combi Hot Water

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