My friend has a Samsung refrigerator, the model number: Rf4287HARS. Anyway, I heard a lot complaints about the Samsung fridge, including the defrosting errors.

Found a very good video

Parts links are as following:

The first link
The second link

The Kit I Used: https://bens-appliances.com/products/…
Defrost Sensor: https://bens-appliances.com/products/…

If you want to DIY your own kit (which may be more expensive than the one we build and sell), you’d want the following items:

Supco SH502 Heater: https://bens-appliances.com/products/…
High-Temp 185*F Cable Ties: https://amzn.to/3ZAJOrC
16-18 AWG Posi-Taps: https://amzn.to/3kW2fb6
OR YOU CAN USE: https://bit.ly/44z0pOP

Moisture Kit: https://oemparts.bens-appliances.com/…