LG GR-267 Service Manual ▷ View online
2-3. Temperature
-6
6-
6-
Problems
Causes
Checks
Measures
Remarks
High
Poor cool air circulation due to faulty
- Lock –– Check resistance with a
- Replace fan motor.
temperature
fan motor.
tester.
in the freezer
0
Ω
: short.
compartment.
∞Ω
: cut.
- Reconnect and reinsert.
- Rotate rotor manually and check
rotation.
- Wire is cut.
- Bad terminal contact: Check
- Maintain clearance and remove ice
terminal visually.
(Repair and/or replace shroud if fan
- Fan constraint. – Fan shroud
is constrained by shroud
contact: Confirm
deformation).
visually.
– Fan icing:
Confirm visually.
Faulty fan motor due to faulty door
- Iced button (faulty) operation:
- Confirm icing causes and repair.
switch operation.
Press button to check
- Replace door switch.
- Faulty button pressure and contact:
Press button to check operation.
- Door cannot press door switch
- Door sag: fix door.
button: Check visually.
- Door liner bent:replace door or
attach sheets.
Bad radiation conditions in
- Check the clearance between the
- Keep clearance between
- The fan may be
compressor compartment.
refrigerator and wall (50 mm in
refrigerator and walls (minimum
broken if cleaning
minimum).
50mm).
performs while the
- Check dust on the grill in
- Remove dust and contaminants
refrigerator is on.
compressor compartment.
from grill for easy heat radiation.
- Check dust on the coils condenser. - Remove the dust with vacuum
cleaner from the coils condenser
while the refrigerator is off.
2-4. Cooling
-6
7-
7-
Problems
Causes
Checks
Measures
Remarks
High
Refrigerant leak.
Check sequence
Weld the leaking part, recharge the
Drier must be replaced.
temperature
1. Check the welded parts of the
refrigerant.
in the freezer
drier inlet and outlet and drier
compartment.
auxiliary in the compressor
compartment (high pressure side).
2. Check the end of compressor
sealing pipe (low pressure side).
3. Check silver soldered parts.
(Cu + Fe / Fe + Fe).
4. Check bending area of wire
condenser pipe in compressor
compartment (cracks can
happen during bending).
5. Check other parts (compressor
compartment and evaporators in
freezer compartment).
Shortage of refrigerant.
Check frost formation on the surface - Find out the leaking area, repair,
Drier must be replaced.
of evaporator in the freezer
evacuate, and recharge the
compartment.
refrigerant.
- If the frost forms evenly on the
- No leaking, remove the remaining
surface, it is OK.
refrigerant, and recharge new
- If it does not, it is not good.
refrigerant.
TROUBLE
DIAGNOSIS
-6
8-
8-
Problems
Causes
Checks
Measures
Remarks
High
Cycle pipe is clogged.
Check sequence.
- Heat up compressor discharging
Direr must be replaced.
temperature in
1. Check temperature of condenser
weld joints with touch, disconnect
the freezer
manually.
the pipes, and check the clogging.
compartment.
If it is warm, it is OK.
Remove the causes of clogging,
If it is not, compressor discharging
weld, evacuate, and recharge
joints might be clogged.
the refrigerant.
2. Manually check whether hot line
- If it's warm, it's OK. If it's not,
pipe is warm.
condenser discharging line weld
If it is warm, it's OK.
joints might be clogged.
If it is not, condenser outlet weld
Disconnect with torch, remove the
joints might be colgged.
causes, evacuate, and recharge
seal refrigerant.
Leak at loop pipe weld joint
Check sequence.
Replace the compressor, weld,
Drier must be replaced.
(discharge) in compressor.
1. Manually check whether
evacuate, and recharge refrigerant.
condenser is warm, It is not warm
and the frost forms partly on the
evaporator in the freezer
compartment.
Faulty cooling fan in the compressor Check sequence.
- Replace if motor does not operate.
compartment.
1. Check cooling fan operation.
- If fan is disconnected, check fan
2. Check that cooling fan is
damage and reassemble it.
disconnected from the motor.
■
Refer to fan motor disassembly
and assembly sequence.
2-5. Defrosting failure
-6
9-
9-
Problems
Causes
Checks
Measures
Remarks
No defrosting.
Heater does not generate heat as
1. Check the resistance of heater.
Heating wire is short and wire is cut.
Seal the lead wire with
the heating wire is cut or the circuit
0
Ω
: Short.
∞Ω
: Cut.
• Parts replacement: Refer to parts
insulation tape and heat
is shorted.
Tens to thousands
Ω
: OK.
explanations.
contraction tube if the cut
1) Heating wire is damaged when
2. Check the resistance between
lead wire is accessible to
inserting into the evaporator.
housing terminal and heater
repair.
2) Lead wire of heater is cut.
surface.
3) Heating wire at lead wire contacts
0
Ω
: Short.
∞Ω
: Cut.
is cut.
Tens to thousands
Ω
: Short.
Sucking duct and discharging hole
1. Confirm foreign materials. In case
1) Push out impurities by inserting
are clogged:
of ice, insert the copper line
copper wire.(Turn off more than
1. Impurities.
through the hole to check.
3hours and pour in hot water if
2. Ice.
2. Put hot water into the drain
frost is severe.)
(check drains outside).
2) Put in hot water to melt down frost.
3) Check the water outlet.
4) Push the heater plate to sucking
duct manually and assemble the
disconnected parts.
Gap between Sucking duct and
1. Confirm in the Sucking duct.
1) Turn off the power, confirm
Heater plate(Ice in the gap).
impurities and ice in the gap, and
supply hot water until the ice in the
gap melts down.
2) Push the Heater plate to drain
bottom with hand and assemble
the disconnected parts.
Wrong heater rating (or wrong
1. Check heater label.
Faults:replace.
assembly).
2. Confirm the capacity after
- How to replace: Refer to main parts.
substituting the resistance value
into the formula.
(V: Rated voltage of user country)
(R: Resistance of tester[
Ω
])
Compare P and lavel capacity.
Tolerance:
±
7%
V
2
P= ––
R
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