The water pressure drops after each time the boiler has been on therefore it doesn't start at the time programmed until the tap is turned to make the white needle go up to the red bar needle.
Open the pressure release valve and allow water out until boiler dial reads zero. Connect a footpump to the pressure vessel tyrevalve tytpe connector and pump it up to 1 bar reading on the footpump dial, (boiler dial should still read zero, if not keep the boiler pressure release valve open). Once footpump dial stays at 1 bar and boiler stays at zero you are almost done. Disconnect footpump, turn off release valve and repressurise to just over 1 bar using the tap either side of a flexible hose, or however you normally do it.
robbie repairs
December 2008
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