I have a GE GFSF6KEXABB frig that died and needed to be defrosted. Well after the 2 days defrost it still did not cool and I began watching videos to find out the issue.

So far, I have done the following:

-Defrost

-Replaced a bad Starter Relay

-Replaced low 134a freon

-Replaced a bad Freezer Defrost Thermostat

After those repairs, the Refrigerator is working again except for the Freezer not being the correct temperature. The display says –4 degrees but it is actually around 40 degrees. I gave it 48 hours (about 2 days) and no change. I am looking at replacing the freezer Temperature Sensor as the next thing to replace.

Am I on the right track? or could there be something else causing this issue of temperatures not matching. Also, for the life of me I cannot find what the diagnostic codes are. It is not in the manual, and I cannot find anything that tells me what they mean for this model. Any help or suggestions would be appreciated.