My Samsung French door fridge’s coils keep freezing up blocking the fan from turning. I have tried everything suggested by YOUTUBERS from forced defrost, complete defrost (by unplugging the fridge for 24 hrs.) to replacing the metal part at the bottom of the heater coil, that goes in the drain hole, with a longer one, from Amazon, that goes deeper into the hole.
I also tried to change the location of the sensor on the coil as well as sealing around the back panel cover with aluminum tape to prevent any warm air from getting behind the back cover. Trying forced defrost and complete defrost seems to work fine for a few days and then the cooling fan starts to get noisy again from hitting the ice until it stops completely because it becomes blocked by the ice buildup.
Any suggestions would be appreciated!! The heating element gets hot when in the forced defrost mode and, from what I read, that means the thermistor is working. Thanks!! The model number for the fridge is :RF23HCEDBSR/AA