LG GC-181SA.CSWQRAN, Service Manual

CIRCUIT DIAGRAM

PO

WER SUPPL

Y CORD

CAP

A

CIT

OR-R

O

VER LO

AD

PR

O

TECT

OR

GN(GN/YL)

YL

PK

COMPRESSOR

P.T.C STARTER

BL

PR

YL

LAMP

DOOR

S/W

BL

BL

BK

BK

THERMOSTAT

2

5

6

3

THE PLUG TYPE ON CIRCUIT DIAGRAM IS SUBJECT
TO CHANGE IN DIFFRENT LOCAL TIES.

3854JD1020K

YL : YELLOW
BK : BLACK
BL : BLUE
GN : GREEN
PR : PURRLE
PK : PINK

4. CIRCUIT DIAGRAM 

-8-

3. OLP (OVER LOAD PROTECTOR)

1) Definition of OLP

(1) OLP (OVER LOAD PROTECTOR) is attached to the

Hermetic Compressor and protects the Motor by
cutting off current in Compressor Motor in case of
over-rising temperature by Bimetal in the OLP.

(2) When over-voltage flows to Compressor motor, the

Bimetal works by heating the heater inside the OLP,
and the OLP protects Motor by cutting off current
which flows to the Compressor Motor.

2) Role of the OLP

(1) The OLP is attached to the Hermetic Compressor

used for the Refrigerator and Show Case and prevents
the Motor Coil from being started in the Compressor.

(2) Do not turn the Adjust Screw of the OLP in any way for

normal operation of the OLP.(Composition and
connection Diagram of OLP)

CONTACTING
POINT

COVER

BIMETAL

CONTACTING
POINT

HEATER

TERMINALS

ADJUST
SCREW

HEATER

BIMETAL

Figure 14