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How to fix my Ravenheat boiler RSF 820/20?

Thanks for that Barry. Does anyone know where to locate the valve for the expansion tank?? To allow me to put some air into it. Thanks.
Geoff, November 2007
how to replace the diaphragm in the diverter valve on a ravenheat 820/20

brian, August 2010
the valve your looking for is on the expansion tank its self,
it looks like the valve on a car tyre,
you will have to release the pressure in the rads before you
re-pressurise the expansion tank

barry, November 2007
link Click here to see other fixes for Ravenheat.