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6-5 REFRIGERATING CYCLE
• 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
r- cool normally, when injecting of Refrigerant
m
> the regular amount.
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. ° The capillary tube is faulty.
G)
m cool normally.
o
"_ WHOLE Freezer ' F]owmg sound of refrigerant Equal to ambient • Normal discharging of
_: CLOG compartment and is not heard and frost isn't temperature. Refrigerant.
-_°_ Refrigeratordcolcool 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 and Low flowing sound of A little higher • Low pressure at high side
O _ RESStON Refrigerator refrigerant is heard and ambient of compressor due to low
-o"r
rr don't cool. frost forms in inlet only. temperature, refrigerant level.
m_,
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 pointofrefrigerant whichmay be in the oil dischargingpart inthe compressorand holeofevaporator.
Check if frost
Check if compressor YES forms or not in
runs or not.
Evaporator.
Frost formed normally
_ i Normal amount
Moisture Clog ! ! FaoUlmt_oressor. I
Check Compressor
Check ifoil
No frost l, leaks or not. |'
or forms .....
in inlet only J,
[ Observe the discharged
, amount of Refrigerant.
I No or much amount
I Inject refrigerant to compressor
and check cooling operation.
co"b!01;'.... I
. . ]I gg Y .
Frost formed nermally
YES
t
,J Gas.!eakag e"
(Check the leakage peint)
-14-
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