I have a Samsung fridge model number: RF23HCEDBSR/AA manufactured in 2016. The fridge temperature reads 30 Celsius (86 F), and will not give the proper reading causing the temperature of the fridge to drop to -2 C (28 F). It does this for a while then displays the set/desired temperature of 7 C (45 F), but the actual temperature is still below -2 C (28 F). I have tested two sensors using an OHM meter, and I have just switched out the circuit board. Same problem. Not sure what else to try.
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