Water dispenser fine but ice maker not working

Question

I have a kenmore side by side (not sure of model no.), I recently replaced the self piercing saddle valve with a larger 1/4" non-piercing type. After I turned the water back on the dispenser worked better than before, but now the ice maker isn't doing anything (and yes the arm is in the on position). Can anyone steer me in the right direction on what to do or check before calling a repairman to come out??