ravenheat rsf 820/20

8 Jul 2007
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United Kingdom
can anyone help i have a old ravenheat rsf 820/20 when boiler in summer mode or hot water only, when the hot water is switched on the radiators are also coming on Help please.
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Diverter valve reqd but you would probably be better off spending money on new vaillant or worcester
divertor valve spindle is moving backwards and forwards when switching between heating and hot water :?:
But the seals are being held open by debis or are crusted up and hard or the springs are weak.
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I'd go with a new DV as well, but get someone in who is used to working on Ravenheats.

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