Forum Discussion
DrewE
Jun 24, 2020Explorer II
wa8yxm wrote:
Since the thermistor on the fins is measureing the air temp. the higher it is the hotter it is.. (ok so perhaps 1 degree hotter at most) so since it will report a higher temp to the control board the controller will try to make things COLDER.
This may confuse some.
The thermistor is mainly measuring the temperature of the fin, and not of the air. If it were sensing the air, then the fridge would not behave much differently if the thermistor were removed from the fin and placed elsewhere in the compartment, but that does indeed happen. (Indeed, if they were interested in measuring the air temperature in the fridge, it would make far more sense to not mount it on the cooling fin at all, but rather someplace more representative of the air temperature.)
The fin temperature varies a little from top to bottom since the coolant flows downwards through the system at that point in the refrigeration cycle.
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