LG GR-L247ER Service Manual ▷ View online
DISPENSER PART
EXPLODED VIEW
- 112 -
278A
278E
278F
402C
278D
405A
275A
276A
275C
401C
275D
275B
281A
276B
280C
280A
207A
277A
280B
278B
278C
279A
501A
2. Faults
2-1. Power
2-2. Compressor
TROUBLE DIAGNOSIS
- 70 -
Problems
Causes
Checks
Measures
Remarks
No power on
- Power cord cut.
- Check the voltage with tester.
-Replace the components.
outlet.
- Faulty connector insertion.
- Check visually.
-Reconnect the connecting parts.
- Faulty connection between plug
- Check visually.
- Reconnect the connecting parts.
and adapter.
Fuse blows out.
- Short circuit by wrong connection.
- Check the fuse with tester
- Find and remove the cause of
- Replace with ra
ted
- Low voltage products are
or visually.
problem(ex. short, high voltage,
fuse after confirming
connected to high voltage.
- Check the input volt are with tester
low voltage).
its specification.
- Short circuit by insects.
(between power cord and products).
- Replace with rated fuse.
- Electricity leakage.
- Check the resistance of power cord
■
If fuse blowns out
- High voltage.
with testerf (if it is 0
Ω
, it is shorted).
frequently, reconfirm
- Short circuit of components
the cause and prevent.
(tracking due to moisture and dust
penetration).
Problems
Causes
Checks
Measures
Remarks
Compressor
- Faulty PTC.
- Check the resistance.
- If resistance is infinite, replace it
does not
Vlaue:
∞
is defective.
with new one.
operate.
- If it is not infinite, it is normal.
- Check other parts.
- Compressor is frozen.
- If compressor assembly parts are
- During forced operation:
normal(capacitor, PTC, OLP),
- Operates: Check other parts.
apply power directly to the
- Not operate: Replace the frozen
compressor to force operation.
compressor with new one, weld,
evacuate, and recharge refrigerant.
OLP It starts as soon as it is
• Refer to weld repair procedures.
contacted.
Auxiliary winding
Main winding
Power
TROUBLE DIAGNOSIS
- 79 -
Problems
Causes
Checks
Measures
Remarks
Vibration sound.
1. Vibration of shelves and foods in
1-1. Remove and replace the
1) Reassemble the vibrating parts
("Cluck")
the refrigerator.
shelves in the refrigerator
and insert foam or cushion where
2. Pipes interference and capillary
1-2. Check light food and container
vibration is severe.
tube touching in the compressor.
on the shelves.
2) Leave a clearance where parts
compartment.
2-1. Touch pipes in the compressore
interfere with each other.
3. Compressor stopper vibration.
compartment with hands.
3) Reduce vibration with rubber
4. Moving wheel vibration.
2-2 Check capillary tube touches
and restrainer if it is severe.
5. Other structure and parts
cover back.
(especially, compressor and pipe).
vibration.
3-1 Check compressor stopper
4) Replace compressor stopper if it
vibration.
vibtates severely.
4-1 Check vibration of front and rear
moving wheels.
5-1 Touch other structures and parts.
Irregular sound.
1. It is caused by heat expansion
1-1 Check time and place of sound
1)
Explain the principles of refrigeration
("Click").
and contraction of evaporator,
sources.
and that the temperature difference
shelves, and pipes in the
between operation and defrosting
refrigerator.
can make sounds.
2)
If evaporator pipe contacts with other
structures, leave a clearance between
them (freezer shroud or inner case).
- 80 -
Problems
Causes
Checks
Measures
Remarks
Sound "Burping"
It happens when refrigerant expands
- Check the sound of refrigerant at the
- Check the restrainer attached on the
(almost the same
at the end of capillary tube.
initial installation.
evaporator and capillary tube weld
as animals crying
- Check the sound when the refrigerator
joints and attach another restrainer.
sound).
starts operation after forced defrosting.
- If it is continuous and servere, insert
- Check the restrainer attachment
capillary tube again (depth:15
±
3mm)
conditions on the evaporator and
- Fasten the capillary tube to suction
capillary tube weld joints.
pipes or detach in the compressor
compartment.
- Explain the principles of freezing
cycles.
Water boiling or
It happens when refrigerant passes
- Check the sound when compressor is
- Explain the principles of freezing cycl
es
flowing sound.
orifice in accumulator internal pipes by
turned on.
and refrigerant flowing phenomenon by
the pressure difference between
- Check the sound when compressor is
internal pressure difference.
condenser and evaporator.
turned off.
- If sound is servere, wrap the
accumulator with foam and restrainer.
Sound of whistle
When door closes, the internal pressure
- Check the sound by opening and
- Broaden the cap of discharge hose for
when door
of the refrigerator decreases sharply
closing the refrigerator or freezer doors.
defrosting in the compressor
closes.
below atomosphere and sucks air into
compartment.
the refrigerator, making the whistle
- Seal the gap with sealant between out
sound.
and inner cases of hinge in door.
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