R E F R Ig E R At Ing C Y C Le - LG GBB530***F Series Service Manual

T R OUB L E S HOOT ING (Mec hanic al P art)
5. R E F R IG E R AT ING C Y C L E
▼ T roubles hooting C hart
C A US E
P AR T IAL F reezer room and
LE AK AG E R efrigerator don't
cool normally.
WHOLE F reezer room and
LE AK AG E R efrigerator don't
cool normally.
P AR T IAL F reeze room and
C LOG R efrigerator don't
cool normally.
F reezer room and
WHOLE
R efrigerator don't
C LOG
cool.
MOIS T UR E C LOG C ooling operation
s tops periodically.
C OMP - F reezer and
R E S S ION R efrigerator don't
cool.
NO C OMP - No compres s ing
R E S S ION operation.
▼ L eakage Detec tion
Obs erve dis charging point of refrigerant which may be in the oil dis charging part in the compres s or and hole of
●
evaporator.
Whether C ompres s or
runs or not.
F ros t formed normally
Mois ture C log.
C heck C ompres s or
S T A T E OF S T A T E OF T HE
T HE S E T E V A P OR A T OR
Low owing s ound of
R efrigerant is heard
and fros t forms in
inlet only
F lowing s ound of
R efrigerant is not
heard and fros t is n't
formed.
F lowing s ound of
R efrigerant is heard
and fros t forms in
inlet only.
F lowing s ound of
R efrigerant is not
heard and fros t is n't
formed.
F lowing s ound of
R efrigerant is not
heard and fros t melts .
Low owing s ound of
R efrigerant is heard
and fros t forms in
inlet only.
F lowing s ound of
R efrigerant is not
heard and no fros t.
Whether fros t
Y E S
forms or not in
E vaporator.
Normal amount
F aulty
C ompres s or.
C o l g g e
T E MP E R A T UR E
OF T HE
C OMP R E S S OR
A little high more
than ambient
temperature.
E qual to ambient
temperature.
A little high more
than ambient
temperature.
E qual to ambient
temperature.
Low than ambient
temperature
A little high than
ambient
temperature.
E qual to ambient
temperature.
No fros t or
forms in inlet
only
Obs erve the dis charged
amount of R efrigerant
Inject R efrigerant to C ompres s or
and check cooling operation.
d y b d u . t s
F ros t formed normally
- 4 -
R E MA R K S
A little R efrigerant
●
dis charges .
Normal cooling is pos s ible
●
when injecting of R efrigerant
the regular amount.
No dis charging of
●
R efrigerant.
Normal cooling is pos s ible
●
when injecting of R efrigerant
the regular amount.
Normal dis charging of
●
refrigerant.
T he capillary tube is faulty.
●
Normal dis charging of
●
R efrigerant.
C ooling operation res tarts
●
when heating the inlet of
capillary tube.
T he pres s ure of high
●
pres s ure part in
compres s or is low.
No pres s ure of high
●
pres s ure part in the
compres s or.
Whether oil leaks or
not.
Y E S
No or much amount
No or much amount
G a l s a e a k g
(C heck the leakage point)
. e