Model Number: RF263TEAESG/AA02
Brand: Samsung
Age: 6-10 years

The display indicates that the refrigerator and freezer are cooling and the compressor is running but there is no cold air blowing into them. Neither is cooling at all. We just need to know which part to start with replacing. The main circuit board has the constant red light indicating there are no error codes. Is there any recommendation of which part to start with or any video recommendations on how to narrow down where to begin on repair.