Ok it is possible that you have reconnected the wires wrong (I would have posted a pic but you can't do that on techroom !!!!! ) so i will try and explain it, cos i think you have connected to the intellifeed so that would account for the one fire pulse.
Behind the trigger micro switch you have a white connector with TWO options of fitting, the white plug will go in either hole it needs to be in the one closest to the lcd display with the red wire to the right and the black wire to the left. if it isn't that then as Paul said email WDP better still ring them 0121 3282228
Behind the trigger micro switch you have a white connector with TWO options of fitting, the white plug will go in either hole it needs to be in the one closest to the lcd display with the red wire to the right and the black wire to the left. if it isn't that then as Paul said email WDP better still ring them 0121 3282228