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home Fix label Heating label_important Home Heating Systems category Saunier Duval

How do I increase the pressure on a combi boiler?

I have a Saunier Duval combi boiler model SD623 and the pressure has gone right down to zero, so that there is hardly any hot water available. Is there a simple way of increasing the pressure myself, and if so, how do I do it?
Catherine, March 2005
home Fix label Heating label_important Home Heating Systems category Saunier Duvaldone
there are two screws/bolts underneath the boiler turn these to your required pressure, best to get some to show you first.
My question is do you do this when the boiler is on or cold.

christine, March 2010
link Click here to see other fixes for Saunier Duval SD623.

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