The washer pump on my 1997 AX is completely inoperative - makes no sound. Fuse is fine based on the assumption it's also for the radio and headlight-on-buzzer which work fine.
If your satisfied the fuse is OK (mind you if a fuse goes there is a fault?).More than likely it will be the pump,but I`ve known switches to play up?? Put a test light on the plug to the w/pump and get someone to operate the switch,if it lights up switch/fuse/wires are OK,fit a pump.
- next job 
