I had the exact same problem with my Samsung fridge. Same timeline too - it was like clockwork. Every quarter I would have to take the back plate off, melt the

I had the exact same problem with my Samsung fridge. Same timeline too - it was like clockwork. Every quarter I would have to take the back plate off, melt the accumulated ice with a hair dryer and reload the fridge. I eventually did enough googling and found a support bulletin from Samsung about this issue. It said to move the thermistor from the intake tube to the output tube. I wish I could find the pic but the general procedure is mentioned here: https://www.appliancejunk.com/forums/index.php?topic=14561.0 https://www.appliancejunk.com/forums/index.php?topic=14561.0 Best of luck. Thankfully it’s been a year since I’ve had to fix the fridge. Funny side note- our fridge used to be so clean when it would fail every three months. We would be forced to unload all the food and we figured why not clean it out at the same time. Now we don’t have that forced cleaning cycle any longer. Oh well.