Service Manual

41
11. Overfreeze Detection Control (S2 dip switch 5)
NOTICE
Factory set for proper operation. Do not adjust. Adjustment outside the factory
default setting may result in damage to the appliance.
Do not adjust. This must be left in the factory default position or the unit will not operate
properly. It is deactivated on the KM-81BAJ, KM-116BAJ, and KM-161BAJ/BWJ.
When activated, the thermistor detects the temperature of the evaporator outlet to nd
overfreeze in a harvest cycle and at the beginning of a freeze cycle. If the difference
between the maximum temperature after the harvest pump timer starts counting and the
temperature at the end of a harvest cycle is 7.2°F (4°C) or more and if the temperature
at the end of a harvest cycle is 48°F (9°C) or less, the harvest cycle is extended for 30
seconds. If the difference between the temperature at the beginning of a freeze cycle
and the minimum temperature after 30 seconds in the freeze cycle is 2.5kΩ or more
and less than 3.5kΩ, the next harvest cycle is extended for 30 seconds. If the above
conditions occur in succession, the number of occurrence times 30 seconds will be
added to the harvest cycle time. If the above temperature difference is 3.5kΩ or more, the
freeze cycle ends after the minimum freeze cycle time and a harvest cycle starts.
If the evaporator outlet temperature is more than 3.5°C but not more than 5°C at the end
of harvest cycle, the harvest cycle is extended for 50 seconds before moving on to the
freeze cycle. If the evaporator outlet temperature is 3.5°C or less, another harvest cycle
starts. The harvest cycle does not repeat more than three times. The freeze cycle starts
even if the evaporator outlet temperature is 3.5°C or less at the end of the third harvest
cycle.
S2 Dip Switch Setting
Overfreeze Detection
ControlNo. 5
OFF Disabled
ON Enabled