Samsung Ice Maker

I have a Samsung Side by Side with a NTGT001TA1 ice maker which is not producing ice.

If I push the black button, it will dump, and then call for water, but it fills only about 1/3 full and will not dump on its own.

The water filter has been recently replaced. Temperature of freezer is set to -2.

Any ideas? Would a bad board cause this or is it more like the ice maker itself?

Thanks.