Refrigerator Module Connector; How It Works - LG LMX21981 Series Training Manual

LMX21981xx

REFRIGERATOR MODULE CONNECTOR

HOW IT WORKS

NOTE: Only 1 refrigerator door switch is shown in the wiring diagram. There are two
refrigerator door switches, one for each door, both wired as shown above. Likewise, in
CON 6, pins 5 and 6 these brown (BN) wires connect the 2 freezer door switches on
connectors F & G. These are also 5 V
LMX21981xx
On this new 4-door refrigerator, the LED
control board has been incorporated into
the main PWB Assembly. The operation
and diagnosis is easier than previous
refrigerators with a separate LED control
board assembly.
This refrigerator has 2 LED modules, one in
the refrigerator section and one in the
freezer section. They are labeled R-Room
LED Module and F-Room LED Module. Each
door of this refrigerator has a door switch.
Each door switch is 2 switches in one.
These door switches have 2 single pole,
single throw normally closed (NC)
switches. The door open perception switch,
shown in CON 4, pins 11 and 12, is a
5 V refrigerator door monitoring switch.
DC
Notice the wire colors connecting these
terminals to the refrigerator door switches
are gray (GY). These gray wires attach to
terminals H & I, shown on the R-Door
switch above.
door monitoring switches.
DC
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REFRIGERATOR
TRAINING MANUAL