Icemaker stopped working, the little black water fill hose that fills the tray froze with water. I removed icemaker, thawed it and removed all ice, and cleared the black fill hose.

Installed back into freezer and plugged in, there is no activity.

I unplugged the refrig for 30 seconds and plugged back in, still no activity.
No water filling, the fingers won't move, nothing.

I've double checked that it's swithched on.

Any ideas??

Thanks all!