Hi All - I was called to a customers house this morning. All their lights and switch indicators are flickering. I checked IR - all good. I had one circuit at a time e.g. sockets and indicators flickered. I had just light circuit on - turned lights on one room and lights flickered. Tried another room and lights flickered. Incoming voltage at the board ranged from 230v to 248V. I put my clamp meter on each circuit and amp stayed constant if lights turned on for example. All the lights are LED spots of various makes in each room but that does not explain socket indicators and even fridge light flicking. I tightened all screws at board also Am I missing something - any suggestions gratefully received