7-2-5 TEMPERATURE SENSOR CIRCUIT
The following temperature sensor circuit consists of a sensor to detect the outside (ambient) temperature, sensor in
refrigerator compartment to detect freezer & refrigerator temp. The status of each sensor, whether open or shorted, is
shown below.
The upper CIRCUIT reads FREEZER and REFRIGERATOR temperature, and DEF-SENSOR temperature for defrosting
and the indoor temperature for compensating for the surrounding temperature, into MICOM.
OPENING or SHORT state of each TEMPERATURE SENSOR are as follows.
- 29 -
SENSOR CHECK POINT NORMAL(-30 ¡C ~ 50 ¡C)
SHORT-CIRCUITED
OPEN
Room Temperature Sensor POINT Voltage
Refrigeration Sensor POINT Voltage 0.5 V ~ 4.5 V 0 V 5 V
Defrosting Sensor
POINT Voltage
A
B
C
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