LG GR-J303UG Series Service Manual page 18

Kimchi

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3-2-6. TEMPERATURE SENSING CIRCUIT

Above circuits consist of the upper sensor, middle sensor, lower sensor for adjusting setup temperature at the upper, middle

and lower compartment, the ambient temperature sensor to detect ambient air temperature, the upper defrost sensor and

the middle defrost sensor attached to the evaporator at the upper, middle compartment to detect the defrost return

temperature. Status in short or open are as follows:

Sensor

Ambient temp. Sensor

Upper Sensor

Middle Sensor

Lower Sensor

Upper Defrost Sensor

Middle Defrost Sensor

Check points

Normal (-30 °C ~ 50 °C)

POINT £ Voltage

In Short

0.5V ~ 4.5V

- 18 -

In Open

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