I Fitted a new EP3002 about 18months ago and it worked fine. Now this summer when I turn the central heating side off, the hot water will not come on. The red indicator lights but the boiler does not start up. If I then switch the CH side on, the boiler fires.
Anyone any ideas or is it simply a matter of "get another programmer"??
Anyone any ideas or is it simply a matter of "get another programmer"??