Thanks for that. Now completed and cooking my lunch! That connector is a design disaster. It took several goes to clamp the lines. I thought I'd got it right, then a bit of tension and the wire came loose again. It took several attempts to get all the wires and bridges firmly inserted into the holes and secured. Anyway, got it right in the end and everything seems to be fine. Your diagram is absolutely correct. There is a circuit diagram on the connector confirming the bridge you have coloured red. Many thanks to everyone for your help.