The LO code on a Kenmore freezer indicates the temperature sensor is reading an unusually low value — either the freezer is extremely cold, or the temperature sensor has failed and is reading an out-of-range value.
Causes
- Temperature set too low and freezer is overcooling
- Failed temperature sensor (thermistor) reading open or extremely low resistance
- Sensor wire disconnected at one end
What To Do
- Check the temperature setting and raise it slightly if set below -10°F.
- If LO appears at normal settings, the temperature sensor requires testing and likely replacement.