ravenheat csi 85 b (t) hot water no central heating?
Hot water is fine but when I press the manual button on clock ( tm6192) the red light will come on looks slightly faded but nothing happens after that. Have changed the clock but still the same but hot water no problems . boiler is about three years old no external stats.
If you can give me any help thanks. P.s I am sorry its a ravenheat
Ian, September 2014
