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Mend Saunier Duval SD623 Boiler Heating

boiler ignites intermittantly?

the saunier duval sd623 combi boiler ignites sometimes when tap is turned on, it can fire up several times in a row and when it doesn;t light up if you turn the Max/Min dial back and forth a couple of times it fires up. what is the problem?

Mr Nugent
September 2007
Saunier DuvalSaunier Duval SD623Heating, Home Heating SystemsBoiler Heating Saunier Duval
WATER VALVE DIAPHRAGM

Bendan
September 2008

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