Where is the thermister located and how involved is it to replace?
Answer Hello Jim,
Then thermistor is normally mounted on the evaporator coils near the defrost thermostat.
This freezer will not stop running
You will want to check the evaporator coils to make sure that they are not impacted with ice. If they are then you have a defrost issue and would need to check the defrost thermostat and defrost heater. If they check ok then the issue would be the defrost control.