Thermistor - U-Line Echelon CO2075FF Service And Parts Manual

CLR2060 MODEL

THERMISTOR

The thermistor senses the refrigeration system "high side" temperature. This is used in conjunction 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-sealed aluminum block. The thermistor is also mounted to
the "high side" or "dry" portion of the refrigeration system. This eliminates physical damage and
moisture concerns.
Check Light on Control Board
The LED light on the control board serves three functions.
1. Steady light -
2. Slow flash -
3. Rapid flashing - This indicates the control board is receiving a high heat signal from the
In both the slow flash and rapid flashing situations, the unit will stop operation.
The control board has power to it and operation is normal.
The control board has detected a sensor problem. This will
happen if the thermistor's plug is disconnected from the
control board. This will also happen if the thermistor fails open.
thermistor. This can be caused by a dirty condenser, inadequate air flow
(unit installed behind closed doors), failed condenser fan motor, etc.
LED Light
96
Design Features Performance
UL301