Here are a few items to look at. Try looking at the outlet wire for the bilge pump (brown) and see if there is power. Also look at the rear to see if you have a ground to the pump. Then try to use a voltmeter and look for wires that are loose. You can go to a new A10 dash and potentially work it all out. Though not necessarily as that is our last step, even though we do have a feeling it is your dash.