How to Troubleshoot & Replace Samsung AP4338786 / DA32-10105X Refrigerator Defrost Thermostat

Replaced the fan motor & (2) sensor temp harnesses. The cover inside the refrigerator was froze on initially so be careful. I took a hair dryer to defrost all the ice build up behind the cover which eventually loosen for removal. AppliancePartsPros has several videos with there parts online & very qualified personnel to help. If your having issues with this model shut it down for a minute and turn back on. Error codes will show on your digital display and the hash marks will indicate the parts needed. 

Watched video, ordered what I thought would be necessary from Appliance Parts Pros and decided to tackle myself. Success! 

Turns out the temp sensor I purchased was not the problem. It had to do with the temp control of refrigerator being out of calibration. I logged into the temp control via the touch panel on front and set the proper temp from there. It now maintains 35deg when the touch panel say 35deg. It never worked better in 3yrs I owned it 

Replaced temperature sensor. You MUST let your fridge defrost completely. Leaving it unplugged overnight worked the easiest. Once the ice had completely melted, the total repair took 20 minutes. Be careful! Before pulling the cover off completely, disconnect from rear of fridge. Your temperature sensor is one of the two items unplugged. Go slow, don’t ever yank, have patience and (most importantly) look before you pull anything off. 

The ice build was quite large ( my fault) so the defrost took quite awhile, so it took a long time to get to the fridge cleared. Once that was done the rest went well and all is working. I have ordered several different parts from you guys and always got the right one first time with fast part delivery. 

In October, I replaced one of the sensors behind the panel inside the refrigerator (I don't know what that part was called. With the refrigerator defrosted, the temp came down and stayed that way until January. In early January, the ice started building up again. This time I replaced the thermostat and thermistor. After defrosting the freezer and removing the trays, screws, and back panel, I disconnected the wires from the back and replaced the sensors with the replacement sensors. The video on the website made it easier, I just followed that and put everything back the way that it was. It's been over a week with no ice yet. 

Replaced 3 temperature sensors. 

The evaporator cover (includes fan & motor)and the several defrost parts. 

Replaced the temperature sensor. 

Replaced thermistor