many thanks, but not quite right. Heating will only come on if selected on the timer. Only issue is that water also has to be selected ie. just hot water select then no heating, to get heating have to select both
Boiler type is an ideal classic. In order to get the heating to come on I also have to select hot water on the timer. If tank is full I have to drain some down to get it to fire. This happens occasionally, but seems to be getting more frequent - any ideas?