RF23HSESBSR Samsung Refrigerator - Overview

This is the Samsung French door refrigerator style that so many people have complained about freezing up and not cooling the top section. I first changed out the defrost thermostat and this did not correct the problem. I done a quick resistance check on the temp sensor that's mounted on the evaporator itself. The resistance would change when holding an ice cube on the sensor so I just assumed it was ok. PLEASE TAKE NOTE: When performing a resistance check on this sensor, make sure your readings match the Samsung temp/resistance chart in their literature. My sensor was way off calibration and was causing the freeze up. Its working as designed now and DW is happy again. Learn from my mistake.

I looked up a YouTube video and it gave pretty well laid out instructions on how to replace the Twin fan assembly in the main compartment.
There was also a suspicion that the sensor wasn't working properly and the fan had ice on it.
Once I removed the main housing at the back of the inside of refrigerator it was relatively easy to replace the fan motor, and sensor.
You have to follow the disassemble procedure closely in getting the main housing out.
You have to remove the clear plate covering the water filter. Then remove the bottom shelf, which then gives you access to the large white back panel. After that its easy to replace the motor and sensor.

unlock filter with pliers with a turn to the right, pull out and replace filter, Turner new filter to the left until it click in.