LG LRTB2023W Service Manual page 11

6-5 REFRIGERATING CYCLE
• Troubleshooting Chart
STATE OF STATE OF THE TEMPERATURE
CAUSE THE SET EVAPORATOR OF THE REMARKS
COMPRESSOR
PARTIAL Freezer room and Low flowing sound of A little high • A little Refrigerant
LEAKAGE Refrigerator Refrigerant is heard and more than discharges.
don't cool frost forms in inlet only ambient * Normal cooling is possible
mr- normally, temperature, when injecting of Refrigerant
>' the regular amount.
_> WHOLE Freezer room and Flowing sound of Refrigerant Equal to ambient • No discharging of Refrigerant.
m
LEAKAGE Refrigerator is not heard and frost isn't temperature. • Normal cooling is possible
don't cool formed, when injecting of Refrigerant
normally, the regular amount.
o PARTIAL Freeze room and Flowing sound of Refrigerant A little high • Normal discharging of
_ CLOG Refrigerator is heard and frost forms more than refrigerant.
don't cool in inlet only. ambient • The capillary tube is faulty.
m normally, temperature,
o
"_ WHOLE Freezer room and Flowing sound of Refrigerant Equal to ambient ° Normal discharging of
CLOG Refrigerator is not heard and frost isn't temperature. Refrigerant.
o_ don't cool. formed.
MOISTURE Cooling operation Flowing sound of Refrigerant Low than • Cooling operation restaMs
CLOG stops periodically, is not heard and frost melts, ambient when heating the inlet of
temperature capillary tube,
O COMP- Freezer and Low flowing sound of ; A little high • The pressure of high
O m_ RESS]ON Refrigerator Refrigerant is heard and than ambient pressure part in
"_'-n
:;om don't cool. frost forms in inlet only. temperature, compressor is low.
mO
o_-_
___ NO COMP- No compressing Flowing sound of Refrigerant Equal to ambient • No pressure of high pressure
O m RESSlON operation, is not heard and no frost, temperature, part in the compressor.
z
• Leakage Detection
• Observe dischargingpoint of refrigerant whichmay be in the oildischargingpart in the compressor and hole of evaporator.
Whether Compressor YES
runs or not.
I Frostformed normally
! M°isfo_reCl_" .-
Whether frost
forms or not in
Evaporator.
n
Normal amount
I
Whether oil
J' leaks or not.
No frost 9 k_
or forms .....
in inlet only _-- -
i
Observe the discharged
amount of Refr gerant.
_ Noor much amount
! Faulty I I Inject Refrigerant to compress°r
Compressor. and check cooling operation.
Frost formed normally
YES
,[Gas,eakage i
(Check the leakage point)
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