3. Open Door Detection Circuit Check
8-2-5 Temperature Sensor Circuit
The upper circuit reads refrigerator temperature, freezer temperature, and defrost 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:
SENSOR
Freezer sensor
Refrigerator sensor
Defrosting sensor
Room Temperature sensor
CHECK POINT
NORMAL (-30°C ~ 50°C)
POINT Ⓐ Voltage
POINT Ⓑ Voltage
POINT Ⓒ Voltage
POINT Ⓓ Voltage
- 33 -
SHORT-CIRCUITED
0.5 V ~ 4.5 V
OPEN
5 V
0 V