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6-5REFRIGERATINGCYCLE
•Troubleshooting Chart
STATE OF STATE OF THE TEMPERATURE
CAUSE THE SET EVAPORATOR OF THE REMARKS
COMPRESSOR
PARTIAL Freezer Low flowing sound of A little higher -Refrigerant level is low due
LEAKAGE compartment and Refrigerant 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.
_m 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 cooling is possible
Refrigerator don't formed, when injecting of Refrigerant
cool normally, the regular amount.
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, o The capillary tube is faulty.
C>
m cool normally.
WHOLE Freezer Flowing sound of refrigerant Equal to ambient • Normal discharging of
CLOG compartment and is not heard and frost isn't temperature. Refrigerant.
u_
•_ 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.
O COMP- Freezer end Low flowing sound of A little higher •Low pressure at high side
O m RESSION Refrigerator refrigerant is heard and ambient of compressor due to low
-o"n
:o m don't cool. frost forms in inlet only. temperature, refrigerant level.
mO
u)--I
_ NO COMP- No compressing Flowing sound of refrigerant Equal to ambient • No pressure of high pressure
O m RESSION operation, is not heard and no frost, temperature, part in the compressor.
t
•Leakage Detection
•Observe dischargingpointof refdgerant whichmay be in the oil dischargingpart in the compressorand hole ofevaporator,
[
Check if compressor YES ICheck if frost
runs or not. J'l forms or not in
Evaporator.
J
iFr°st f°rmed n°rmalli Normal areount
Moisture Clog
_- Check if oil
No frost leaks or not.
or forms
in inlet only |
Observe the discharged
amount of Refrigerant.
_, No or much amount
Faulty Inject refrigerant to compressor
Compressor, and check cooling operation. I
Check Compressor IClogged by dust. 1
Frost formed normally
YES
r
>! Gas leakage. I
(Check the leakage point)
-14-
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