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6-5 REFRIGERATING CYCLE
• Troubleshooting Chart
r-
m
>
CAUSE
PARTIAL
LEAKAGE
WHOLE
LEAKAGE
0 PARTIAL
S CLOG
G3
WHOLE
c_ I CLOG
MOISTURE
CLOG
COMP-
._ RESSION
-o"11
Tom
mO
Gg-_
_ NO COMP-
O m RESSION
z
STATE OF
THE SET
Freezer
compartment and
Refrigerator don't
cool normally.
Freezer
compartment and
Refrigerator don't
cool normally.
Freeze
compartment and
Refrigerator don't
cool normally.
Freezer
compartmentand
Refrkjerafardee_cod.
Cooling operation
stops periodically.
Freezer and
Refrigerator
don't cool.
No compressing
operation.
STATE OF THE
EVAPORATOR
! Low flowing sound of
Refrigerant is heard and
frost forms in inlet only
Flowing sound of refrigerant
is not heard and frost isn't
formed.
Flowing sound of refrigerant
is heard and frost forms
in inlet only.
Flowing sound of refrigerant
is not heard and frost isn't
formed.
Flowing sound of refrigerant
is not heard and frost melts.
Low flowing sound of
refrigerant is heard and
frost forms in inlet only.
Flowing sound of refrigerant
is not heard and no frost.
TEMPERATURE
OF THE
COMPRESSOR
A little higher
than ambient
temperature.
Equal to ambient
temperature.
A little higher
then ambient
temperature.
Equal to ambient
temperature.
Lower than
ambient
temperature
A little higher
ambient
temperature.
Equal to ambient
temperature,
REMARKS
• Refrigerant level is low due
to a leak.
• Normal cooling is possible
when injecting of Refrigerant
the regular amount.
No discharging of Refrigerant.
Normal cooling is possible
when injecting of Refrigerant
the regular amount.
• Normal discharging of
refrigerant.
• The capillary tube is faulty,
• Normaldischarging of
Refrigerant.
• Cooling operation restarts
when heating the inlet of
capillary tube.
• Low pressure at high side
of compressor due to low
refrigerant level.
• No pressure ofhigh pressure
part inthe compressor,
• Leakage Detection
eObserve discharging point of refrigerant which may be in the oil discharging part in the compressor and hole of evaporator.
I Check if frost
Check if compressor YES • | forms or not in
runs or not. Evaporator.
Frost formed normally
_ Faullv
I Moisture Clog _ t-auity
_ ompreesor
CheckCompressor Cioggedbydust
I Check if oil
No frost = leaks or not.
I
or forms . __
in inlet only
Observe the discharged
amount of Refrigerant.
LNoor much amount
YES
Inject refrigerant to compressor
and check cooling operation.
1 .I Gas leakage.
Frost formed normally (Check the leakage point)
-14-
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