Its a cooling fan error.There are two cooling fans in the unit.One inside the freezer section and one beside the compressor.The compressor is getting overheated because the fan beside the compressor is not operating correctly.Due to this you get CF error, this is to check the cooling fan.
CF means cooling fan or compressor fan.-------
If you get FF error, then check fan in freezer section.-------
Now as you mentioned that you have installed the refrigerator correctly.But still i think, if possible keep more space at back of the refrigerator and sides.At least 3 inches to sides and 6 to 10 inches gap from back wall and refrigerator.-----------
Most probably this is causing the problem.-------
The compressor get hot, to cool the compressor there is fan, this fan throws hot air from back.But if the space at back is very less then, that same air will again get inside, so compressor will not get properly cool and you are getting CF error.-------
So first thing you try is get bit more space to refrigerator and see if this error comes back again.But if same error is coming again, that means, the cooling fan is got bit weak and its fan motor needs to be replaced.The fan motor is fitted by just few screws and a wiring connector.It can be easily removed and replaced.-------
Or may be there is dirt got collected on the fan blades and that dirt is causing the fan to move bit slow, so compressor is not getting properly cool and you get this error.---------
Get the fan blades cleaned, place refrigerator for few hours in proper open space then see, if error is there.-----------
To get parts.
you can get the required
parts from online sites like:---
from searspartsdirect online site.---------This will help.Thanks.Helpmech.