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Mend Ravenheat RSF 820/20 Heating Pressure Needle

heating?

its happened twice now, ive put the heating on... ok, when its turned off the pressure needle goes to ZERO. The make is Ravenheat RSF 820/20

Livesey
October 2010
you have a leak in your system,it should read 1.5 bar

mm
October 2010

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