I had a Helvar Digidim 4 sytem installed (3 circuits) almost ten years ago and one by one the dimmer on each circuit has decided to fail. I had one replaced a few years ago at great expense (by Helvar) but now the other two have stopped working. Helvar have been very unhelpful this time saying that I should get in an electrician. So I'm not sure what to do. Should I just ditch the system and look for something else that is more robust? Is it possible to re-use the control panels? Does anyone have any ideas as to what I can do please? Grateful for any advice as two of my circuits haven't been working for almost a year now!