How to Troubleshoot & Replace Samsung AP4136948 / DA32-10109W Refrigerator Temperature Sensor

Replace fan and temp sensor. Works great. Arrived next day. 

This repair was likely compounded by a second failed component after several unplug attempts. The first failure occurred after the freezer door had been left ajar. The freezer temp wouldn't drop but inside it still felt cold. I did several panel resets and the 'unplug for 12 hours' trick, neither changed indications. Checking behind the condenser cover revealed that it was still cold and appeared to be function, but the evap fan did not appear to be working. At some point during one of the unplug resets, I believe the refrigerator defrost sensor died which complicated the issue as it would freeze the water tank on the fridge side. Replacing the evaporator motor ended up fixing the freezer issue (you can usually check this by opening the door and holding the freezer shut button - if you don't hear anything the motor is probably dead). After the freezer was working I had to let the fridge side thaw again before replacing the defrost sensor. Replacing defrost sensor fixed the water tank freezing issue. Temperature sensor for freezer was not needed. With both parts in, the whole thing is back to normal and working perfectly. One note of caution for those replacing evap motors, the connectors/pins can get kind of weak after 10 years of being in use. Some of the pins on the evap motor broke when I removed the connector which required some delicate repair work. That harness is no longer available and the pin style is very unique. Thanks AppliancePartsPros.com! 

Pulled lower section on back of Refrigerator(now this takes a little force,but don't break it). Exposed icing on coils(no airflow and overcooling).Ordered New Fan and Temperature sensor. Easy to install and worked like a charm. 

I called a repair company to find out what's going on with the freezer the Tech inspected and said that the defroster thermostat sensor was bad, he want me to charge $500 dollars to repair it which I found it too much since the refry was 10 years old, so went to appliance Parts.com and I investigate how much was that particular sensor my surprise it cost only $27 dollars but not only that there was a video that shows how to replace it; wonderful! I order it and I replaced it myself in 20 minutes and my freezer is working fine again. Thank you Appliance parts 

Replaced the heater sheath and both temperature sensors 

Installed fuse and sensor 

I determined that the freezer fan was not turning, so I ordered the fan and the temperature sensor because I had been having the problem with the ice maker for months. I talked to customer service before ordering and they did not think I had a problem with the sensor, but for a little over $10.00, I decided to replace it anyway. Long story short, with the new fan and sensor, the freezer no longer ices up and the ice maker works perfectly. I think the old fan was working somewhat or sometimes but did not push enough air for the unit to work properly. 

Called Appliance parts pros and they sent me a service manual pdf. for my Samsung Refrigerator. I thought that was awesome! I spent about 4 hours trying to figure out the self diagnosis and troubleshooting info. I finally used the manual to take out the icemaker and related stuff and pulled the temperature sensor. When I could not get resistance through the sensor I ordered a new one. The part was here in a day and a half. And the fridge seems to be operating normally now. The required assembly and dis-assembly was easy using the manual. These guys are fantastic! 

After replaceing the sensors and the heater I orded the display control board no more beeping after replacing it 

Damper door was broken super glued the shaft part back together. I put in the new sensors,Evaporator Fan Motor, fan blade. I couldn't find the thermal fuse top plug had a red jumper wire. Its working right now. ( Fridge tem. 40 Freezer 0) Probably gonna put a new motor-Damper in it. don't know how long the glue will hold.