944 front screen washers

[pcn1]

Can't get no spray from the drivers side jet. It does not appear to be blocked but I noticed a couple of electrical leads on the unit. Is there a mini solinoid valve there ?
Also noticed what looked like in-line filters on the pipes, is that what they are ?

Thanks

[HAB]

No, They are non return valves. They sometimes get blocked up with gunk,soap etc.
Try taking the drivers one off and see if the washer works then, Both were blocked on my old 944, makes no difeence if you remove them other than waiting about 1 second for the water to pump from the screenwash bottle.