Refrigerator is freezing our food
We have a Norcold 6 cu. ft freezer /fridge. Is 10 years old. The refrigerator was so cold that it blew the top off a can of pop. What could be causing this pls?
Forum Discussion
Old-Biscuit wrote:
Thermostats on fridges with adjustable temp settings are pre-set at factory for specific temp range and calibrated for those temps based on OEM position of thermistor on fin.
Thermistor just senses the fin temp so when the pre-set temp is reach the thermostat shuts off 'heating'
Auto Temp Control uses the thermistor as the setting for temps.
Moving thermistor UP/Colder (warmer fin) thermostat continues 'heating cycle' until temp is reached .....longer heating cycles
Moving thermistor DOWN/WARMER (colder fin) thermostat continues 'heating cycle' until temp is reached.....shorter heating cycles
Overall affect is 6*F-8*F
It looks like my understanding is sound, The only difference between the fridge types then is that an adjustable fridge has multiple “expected” temperature choices versus the other that has just one. Both can be “adjusted” by moving the thermistor position which changes the interior temperature relative to the thermistor temperature which the control board cannot possibly know. Again, on an adjustable fridge there’s no reason to do that unless the max setting still isn’t cold enough.
In both, if the thermistor falls off they will over cool.
