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Explation for micom circuit – LG SXS GR-P257/L257 User Manual

Page 33

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1-7. Temperature sensing circuit

(1)

GR-P227/L227/P257/L257

The circuits involving the freezer and refrigerator sensors control the temperature in both the freezer and the refrigerator.
The icemaker sensor detects when ice is made. The defrost sensor determines both the need for defrosting and the
efficiency of the defrost operation. See the table below for voltages and checkpoints.

EXPLATION FOR MICOM CIRCUIT

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SENSOR

CHECK POINT

NORMAL(-22 °F ~ 122 °F)

IN SHORT

IN OPEN

Freezing sensor

POINT A Voltage

Defrost sensor

POINT B Voltage

Refrigerator sensor 1

POINT C Voltage

0.5 V~4.5 V

0 V

5 V

Refrigerator sensor 2

POINT D Voltage

Magic room/ Opti Fresh Sensor

POINT E Voltage

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