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6-5 REFRIGERATING CYCLE
•Troubleshooting Chart
CAUSE STATE OF STATE OF THE TEMPERATURE
THE SET EVAPORATOR OF THE REMARKS
COMPRESSOR
PARTIAL Freezer Low flowing sound of A little higher •Refrigerant level is low due
LEAKAGE compartment and Refhgerant is heard and than ambient to a leak.
Refrigerator don't frost forms in inlet only temperature. • Normal cooling is possible
mr- cool normally when injecting of Refrigerant
>the regular amount.
Om WHOLE Freezer Flowing sound of refrigerant Equal to ambient - No discharging of Refrigerant.
LEAKAGE compartment and is not heard and frost isn*t temperature, •Normal coo]ing is possible
Refrigerator don1 formed, when injecting of Refrigerant
cool normally, the regular amount.
o PARTIAL Freeze Flowing sound of refrigerant A little higher •Normal discharging of
CLOG compartment and is heard and frost forms than ambient refrigerant.
Refrigerator don't in inlet only. temperature. ° The capillary tube is faulty.
G3
m cool normally
o
m WHOLE Freezer Flowing sound of refrigerant Equal to ambient •Normal discharging of
CLOG compartmentand is not heard and frost isn't temperature. Refrigerant.
'_._ Refrigeratordon'tcool. formed.
MOISTURE Cooling operation Flowing sound of refrigerant Lower than • Cooling operation restarts
CLOG stops periodically, is not heard and frost melts, ambient when heating the inlet of
temperature capillary tube.
COMP- Freezer and Low flowing sound of A little higher •Low pressure at high side
O mCRESSION Refrigerator refrigerant is heard and ambient of compressor due to low
•13"_
m don't cool. frost forms in inlet only. temperature, refrigerant level.
mG
_o}_ NO COMP- No compressing Flowing sound of refrigerant Equal to ambient °No pressure of high pressure
O rr RESSION operation, is not heard and no frost, temperature, part in the compressor.
z
•Leakage Detection
•Observe discharging point of refdgerent which may be in the oil discharging part in the compressor and hole of evaporator.
Check if compressor YES
runsor not.
Frost formed normally
Check if frost
forms or not in
Evaporator.
J
l Moisture Clog Ji Normal amount
Faulty
Compressor.
IClogged by dust.
Check Compressor I
ICheck ifoil
No frost J' leaks or not,
or forms
in inlet only jf
t Observe the discharged
amount of Refrigerant.
_, No or much amount
Inject refrigerant to compressor
and check cooling operation.
--] Frost formed normally
YES
Ir
,tGasIeakageJ
(Check the leakage point)
-14 -
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