1.4mpi issues

Hi guys. Having some issues with my mrs fabia. Aside from the head gasket, clutch, pas pump and timing chain needing doing (I know) the wipers have died.

Fine one minute, parked up for 5, won't work. When I pull the screen wash the back wiper comes on! The back wiper also works as it should when the stalk is pressed forward. I've checked the fuses to the right of the steering wheel but nothing is jumping out at me.

All help appreciated as the car is virtually undrivable like this! Ta