Sorry if this has been asked a million times.
just scrolled through 200 results and didn't find anything similar to this.

My window washer isn't working. Press the stalk button and nothing happens. No motor noise, No wiper movement...nothing.
Push the stalk and the rear one works, but its been de-wipered....you can still hear the relay though.

So does the system detect the movement of water through the pipe and then activates the wipers?
or is it as simple as the button on the stalk isnt working?

Checked the fuse....seems ok...but should be if the rear washer is working...same pump right?

any ideas?
its an 05 preface lift mk6 st.

thanks all