How to Troubleshoot & Replace Samsung AP4136087 / DA47-00244B Refrigerator Defrost Heater

Ordered parts, defrosted refrigerator, and replaced with new items. This problem has been going on quite some time, while Samsung refused to acknowledge the defective unit, claiming it was owner fault. The defrosting had to be completed every 3-4 months and managed in time to require defrosting every few days. Originally a repairman came and although he defrosted it the first time, he informed us, this is quite common and the unit is defective by design; which is why we continued to defrost on a regular basis until it became too much. Trying this as last resort, so if this doesn't solve issue, we will have to replace unit. The replacing was fairly easy and would do it again if needed. Parts arrived quickly which was wonderful, can't say enough nice things about that experience. So far, so good, as refrigerator seems to be functioning as it did up until warranty ran out. 

Replaced the temperature sensor and the heating element, the repair would have taken the recommended time that your company suggested, but there was so much ice to chop away, that took an hour, but after the ice was cleared the parts was very easy to replace, thank you. 

I read the similar problem resolution, viewed the video and decided to take a stab at fixing it. Purchased all the replaceable parts including the evaporator cover with the fan. Good thing since the ice bonded to the insulation of the old cover so most of the insulation was torn when the assembly cover was finally removed. Had a little difficulty removing the heater since it is held by slots in the shield but bending the shield made it easier to remove. Had all latest parts so splicing wires was not required. Tried to install the red and white clips the 3 harnesses on the table but that seemed to be impossible so I just plugged in each harness into the block and installed the clips. Worked well 

I put a defrost sensor and a heater in as well as a new clip for the drain so it would not ice up. If you do this repair put all the parts in, that fixed it. 

After watching the appliance parts pros video. I replaced the defrost heating element, the defrost thermostat and a defrost sensor. I am waiting to see if the problem was resolved. If it is resolved I’ll be very happy 

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. 

Replaced all 3 parts 

Water was pooling both in and outside of the crisper drawers. When the inside back panel was taken off everything was iced over. In reviewing youtube and then finally the AppliancePartsPros.com site we found that there were multiple options that could address the problem. The simplest way-replace the defrost piece on the evaporator coil did not work. However, it gave us time to explore other options. When we removed the back panel it was iced up again. It took more than 24 hours to get rid of the ice to work on it. We replaced the temp sensor and the coil itself. So far so good. My fingers are crossed! 

Replaced the defrost heater, thermostat and thermistor. 

Replaced defrost heater.