charlie boy

:D can anyone please help, im not particularly mechanically minded ! ive got a 2001 y reg c5 2.0hdi with 180,000 miles on it.the suspension went down to its lowest setting and has now ceased to work,ive checked main fuses to find that the big fuse beneath the fuse tray under bonnet had blown,replaced it,and checked power to pump,which is okay,but suspension just dead? when you press button to raise suspension lights on dash show ok green,amber,red e.t.c .is there a need or way to reset something ? the only advice i can get from local mechanics is that fuse must of blown because pump must have seized? thanks.