How to Troubleshoot & Replace Ge AP3670214 / WR02X10647 Temperature Sensor Grille

My GE Profile Model PSS26PSTASS freezes food in the food section. The sensor was shot - so the fan on the bottom of the fridge would constantly run - ice was forming in the fridge and my water filter was freezing. I went away for a few days and it was shattered from freezing up. Sensor is located behind the oval vent on the left wall of the fridge. between the 2nd and 3rd shelf. Unplug fridge - Pop off the white cover with a screwdriver - pull out the wires, clip the wires & strip them. Remove the foil cover from the back of the sensor, and pull out the old sensor. Replace the sensor and replace foil cover (I bought a new one). splice the new and old wires together using small blue wire nuts (you can fill them with silicone if you want to prevent moisture). stuff the wires back into the hole and replace the cover with the new sensor in it. 

I ordered a new mother board, water tank, and grille sensors because I broke three of the current ones that were there. I replaced all three items, and it's working as if it was brand new. The parts were exactly what I needed and they fit perfectly. 

Water tank and temperature sensor grille replacements 

Replaced water tank and temperature sensor in freezer.