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Design
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Features
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Performance
THERMISTORS
Condenser Thermistor
The condenser thermistor senses the refrigeration system “high side” temperature. This is used in conjunc-
tion with the control board to determine the length of the freeze and harvest cycles.
Thermistors generally fail due to moisture or physical damage. U-Line “high side” thermistors are encased
in a specially-designed, moisture-resistant stainless cap. The thermistor is mounted to the “high side” or
“dry” portion of the refrigeration system to eliminate physical damage and moisture concerns.
Refrigeration Thermistor
The refrigeration thermistor monitors refrigerator temperature and determines refrigerator cycles. This ther-
mistor can also affect ice production, since the refrigeration cycle will take precedence over the ice pro-
duction to protect perishables. The thermistor is placed in a sealed stainless steel well tube to protect it
from moisture and is located on the inside wall of the refrigerator.
Bin Level Thermistor
The ice machine shut-off is controlled by the level of ice in the ice storage bin. When the bin is full, ice
contacts the bin thermistor well tube, which senses the cool temperatures, then opens which stops the ice
machine. The ice machine will remain off until the ice cubes no longer contact the bin thermistor well
tube. This causes the bin thermistor to warm and close, restarting the ice machine. The thermistor is
placed in a sealed stainless steel well tube to protect it from moisture and is located on the wall, in the ice
bin.
To view actual thermistor reading:
1. Press “WARMER” momentarily and the far left LED (1) will come on and the display will show
refrigerator temperature.
2. Press “COLDER” and hold until the middle LED (2) comes on, the liquid line temperature will be
displayed.
3. Keep holding “COLDER” down and the right LED (3) will come on, showing the ice bin thermistor
temperature. If you continue pressing the “COLDER” button, the display will alternate between bin
and liquid line temperature.
SERVICING