bmw 330se 2001 heated rear windscreen not working?

any ide why my heated rear windows decided to give up n me?its a 2001 bmw 330 se.the light on the button lights up but the window doesnt clear at all.not even a ittle tiny bit on the edge.the connection on the window are fine & there are no fuses blown.
zippy, February 2007


done
that wil be the foo foo valve on the flux capacitor m8,clean it out & it will be fine.

bob, February 2007
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