ice maker

I have just finished installing replacement ice maker. I plugged the refrigertator back in and the ice maker did not fill with water.
Does it have to get to temperature before it will cycle? Thanks in advance for your help.

Yes, it must get below 15 degrees before anything will happen with it.

my water dispenser quit working 2 or 3 wks ago & yesterday the ice maker quit. What do you think it is?