Screen wash jets stopped working

Just been into my 1990 cab after a two week hol and the screen wash has stopped working. I pull back the stalk and the wipers go, but no fluid. the reservoir is almost full with liquid, but when I try it doesn't even make the whirring noise like its even trying to pull fluid through. I'm assuming there is an electrical pump and possibly a relay which could've stopped working? I'm sure (hoping) its an easy fix. Thanks in advance.

take the ignition trim off and check at the base of the wiper stalk, you can see a pair of metal contacts there. make sure they're clean and give them a slight bend if they arnt making good contact

rubjonny said

take the ignition trim off and check at the base of the wiper stalk, you can see a pair of metal contacts there. make sure they're clean and give them a slight bend if they arnt making good contact

I did the same on mine and thanks to John's advice and it worked a real treat!