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Hi the problem got gradually worse-suspect diverter valve.

thanks guys,first time used site,sorry if wrong way of asking for advice. Can anyone please advise about diverter valve,as I said have replaced diaphragm,cannot get dhw without ch,diaphragm spindle makes micro switch,wonder could prob be switch or diverter valve. Would welcome any advice to...

have looked at ravenheat combi csi85 regarding hot water only available with rads heating up even in dhw mode only,Have changed diverter valve diaphragm,still same problem.Could the diverter valve be u/s? Would welcome any ideas.

Hi have trouble with ravenheat combi cs185,hot water ok with ch on,switch over to hw only ch still heats up.Have changed diverter valve diaphragm,still same problem. Could anyone give me any ideas to solve problem please. davenico