Model Number: PFSS6PKXBSS
Brand: GE
Age: 6-10 years

I have a GE french door refrigerator with an ice maker that quit working. I replaced the ice maker with a new Samsung DA41-00476E unit but it still doesn't work. A few years ago I replaced this same ice maker and it worked correctly until now.
I have checked water flow and it is OK. I placed a thermometer in the ice maker bin and after about 10 minutes it read 25 deg F. There appears to be cold air blowing into the compartment.
What should I check next?
Thanks