LG GR-K192AF Manuale utente
CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS MANUAL
BEFORE CHECKING OR OPERATING THE REFRIGERATOR.
KIMCHI REFRIGERATOR
SERVICE MANUAL
http://biz.lgservice.com
MODEL : GR-K192AF
1. Safety warnings and cautions.......................................................................................................................3
2. Product specification .....................................................................................................................................6
3. Product installation method ..........................................................................................................................7
4. Circuit diagram ...............................................................................................................................................8
5. MICOM function and circuit description.......................................................................................................9
6. Freezing cycle and refrigerant.....................................................................................................................31
7. General details about the product ..............................................................................................................33
8. Major repair method for freezing cycle.......................................................................................................35
9. Characteristics of each part ........................................................................................................................44
10. Cautions for disassembling the product..................................................................................................52
11. Assembly diagram and service parts list.................................................................................................53
1. First check if there is any electric leakage in the refrigerator unit.
2. Always unplug the refrigerator before handling any electricity conducting parts.
3. When testing the refrigerator with the power on, use insulated gloves for safety.
4. When using measuring instruments, check the rated current, voltage and capacity.
5. Do not allow water or moisture to get into the mechanical or electrical parts of the refrigerator.
6. Remove all things on top of the refrigerator before tilting it during repairs to avoid spills.
Be especially careful for thin objects (glass sheet, book).
7. When the refrigerating cycle is damaged, always request service to the major repair service agency.
(This is to prevent the house from getting dirty from the gas within the cycle.)
8. Always double check for repairs related to safety to ensure customer safety.
Safety regulations
Contents
- 2 -
Chapter 1. Safety warnings and cautions
u Always observe the ‘Safety Warnings’ and ‘Cautions’, which hare intended to ensure safety while repairing or operating
the product.
u Precautions are classified into ‘Warning’ and ‘Caution’, as explained below.
w Warning Warning means a dangerous condition which could result in significant damage, injury or death if
the instructions are not followed.
w Caution Caution means a condition which could result in damage or injury if instructions are not followed.
- 3 -
Safety warnings and cautions
Use caution to prevent electric shock
The control panel (main
PCB) uses 310V. When
replacing PCB parts, wait at
least 3 minutes after
unplugging. Always unplug
the refrigerator before
repairing.
Make sure that the power plug is not
pressed by the back of the refrigerator
Power plug may be
damaged and cause a fire
or electric shock.
Use a dedicated circuit.
Overloading circuits or outlets
could cause a fire.
Do not allow the consumer to repair,
disassemble or modify the refrigerator.
Damaged power plug can
cause fire or electric
shock.
w Warning
Safety warnings and cautions
- 4 -
This product should always be
grounded, when needed.
If you think that there is a possibility of electricity
leakage by water or moisture, always ground the unit.
More than
7
Grounding screw
Grounding line
Copper plate
Do not store flammable liquid or gas in
the refrigerator such as ether, benzene,
alcohol, medicine, LP gas etc.
It can cause an explosion or a fire.
LP
gas
Ether Ben
zene
Do not store medicine or academic
material etc. in the refrigerator.
Store an object that
requires precise
temperature control
can cause deterioration
in quality or
unexpected reaction to
cause a dangerous
situation.
Do not set items, particularly flower
vase, cup, cosmetic or medicine on top
of the refrigerator.
It can cause fire and
electric shock or cause an
injury from dropping.
Do not stack items or carelessly store
food on the refrigerator.
Items stored on the
refrigerator could fall
and cause injury.
When disposing the refrigerator,
remove the rubber packing on the door
and do not leave it where children play.
A child can be
dangerously entrapped in
the refrigerator.
w Warning
Safety warnings and cautions
- 5 -
When using the refrigerator for low
temperature in freezer or refrigerator,
do not store bottles.
Bottles can freeze and cause the bottles to crack,
which can cause an injury.
During repairs, be sure all connectors
are tight and wires are properly routed.
Make sure the connectors of the housing part are
properly connected.
During repairs, remove all dust and
foreign material from the housing part,
connector part and check part.
It can prevent problems such as tracking or short
circuit.
Do not bend, modify, bend, pull or twist
the power cord.
It can cause fire or electric shock.
Allow at least 5 minutes for resetting if
you unplug the refrigerator.
If can cause an
overload to the
condenser operation
and cause problems.
After 5 minutes
Always use exact replacement parts.
Make sure that the model name, voltage, current and
temperature ratings are correct for the electric part.
w Caution
Chapter 2. Product specification
2-1. GR-K192AF
Product specification
- 6 -
Item GR-K192AF
SPEC
188.8Li
94.3Li
94.3Li
922mm
699mm
883mm
66kg
115W
Direct cooling
Electronic
CYCLO PENTANE
1 pc.
6 pcs. (6 large)
2 pcs.
NR58LBQH
PIPE ON SHEET
R134a(145g)
FREOL@15G(210cc)
P6R8MB
4TM412TFBYY
ø110,3 blades attached
115V / 80W(Resistance:605Ω)
115V / 80W(Resistance:605Ω)
250VAC 10µF
200VAC 50µF
Volume
External
dimensions
Usable volume
Left compartment
Right compartment
Width
Depth
Height
Total weight
Motor power consumption
Cooling method
Store/Season
Insulation material
Fresh vegetable basket
Kimchi refrigerator container
Low temperature catalytic deodorizing system
Compressor
Evaporator
Refrigerant (amount)
Oil
PTC
OLP
Fan motor for compressor cooling
Left compartment seasoning heater
Right compartment seasoning heater
Capacitor (running)
Capacitor (starting)
Freeze cycle Electrical part rating
Chapter 3. Product installation method
3-1. Method to adjust height of refrigerator
■First adjust the level of the refrigerator.
(If the floor is uneven, the refrigerator may vibrate or cause noise.)
uAdjust the front to be leveled by turning the height adjustment screws under the front corners in the arrow direction.
3-2. Grounding method
Plug the cord into a 115V grounded outlet. If you are unsure of the voltage or
grounding integrity, consult a qualified electrician.
Take care not to ground the circuit at one of the following
places:
1. Water pipe: If there is a plastic piping within the system, the
ground may not be valid.
2. Gas pipe: There is a danger of fire or explosion.
3. Phone line or lightning rod: If lightning strikes, dangerous
voltage may be induced in the circuit.
Product installation method
- 7 -
Horizontal adjustment leg
(lower handle part)
More than 75cm
Grounding line
Copper plate
Caution
Chapter 4. Circuit diagram
Circuit diagram
- 8 -
Chapter 5. MICOM function and circuit description
5-1. Function description
5-1-1. Display part
1. When the power is connected for the first time, it is set to “Lock”, “Left compartment-Cabbage Kimchi-Mid” and “Right
compartment-Cabbage Kimchi-Mid”.
2. During a power shut-down or when the power is reconnected, the refrigerator maintains the prior display. But in case of a
power-shut down or power reconnection during rhythm fermenting, the temperature returns to “Mid” for the applicable
food type.
3. In “Lock” status, you will not hear a buzzer even when you press the buttons and the functions will not work.
MICOM function and circuit description
- 9 -
Notch
Temperature
Kimchi srore
Vegetable/Fruit Light freezing Freezing food
Min Mid Max Min Mid Max Min Mid Max Min Mid Max
0°C -1.0°C -2.0°C 3.5°C 2.5°C 1.5°C -4.0°C -5.0°C -6.0°C -5°C -18°C -21°C
5-1-2. Food storage/seasoning function
(1) When selecting food type and storing temperature
1. Press the “Lock/Unlock” button for more than 2 seconds to switch to “Unlock” status.
2. Press the “Kimchi store” button to select “Mid” ’ “Max” ’ “Min” ’ “Mid”, “Vegetable / Fruit” button “Mid” ’ “Max” ’ “Min”
’ “Mid”, and “Feezing” button “Normal” ’ “Max” ’ “Ligth Freeaing” ’ “Normal” in sequence
3. Press the “Lock/Unlock” button to complete the selection of food type and storing temperature. At this time, if a minute
passes without pressing the “Lock/Unlock” button, it will automatically switch to Lock status and end the food type and
storing temperature selection mode.
(2) When selecting rhythm fermenting (seasoning)
1. Press the “Lock/Unlock” button for more than 2 seconds to switch to “Unlock” status.
2. At this condition, press “Fermentation” button to select “Normal ” ’ ”Normal ” ’ ”More ” ’ ”Underground
Fermentation ” ’ ”Less ” ’ ” Less ” ’ ” Normal ” in sequence, and when the fermentation type is changed
from “Less” to “Normal”, the food type is selected by the order of “Cabbage kimchi” ’ ”Radish kimchi” ’ ”Broth kimchi”
in sequence. However, “Underground Fermentation ” is only for “Cabbage kimchi.”
3. Press the “Lock/Unlock” button to complete the rhythm fermenting (seasoning). At this time, if a minute passes without
pressing the “Lock/Unlock” button, it will automatically switch to Lock status and end the rhythm ferment (seasoning)
selection mode.
4. When “Rhythmic fermentation” is terminated, the remaining time is displayed, and when the fermentation is completed, “0
hour” is displayed as the remaining time and the storing temperature is automatically set to “Mid
(3) When selecting flavor keeping
1. Press the “Lock/Unlock” button for more than 2 seconds to switch to “Unlock” status.
2. Select “Kimchi store” as storing type. (Flavor keeping function is only limited to “Kimchi store”)
3. At this time, press the “Flavor keeping” button to select or cancel the flavor keeping function.
4. Press the “Lock/Unlock” button to end the flavor keeping selection mode. At this time, if a minute passes without pressing
the “Lock/Unlock” button, it will automatically switch to Lock status and end the flavor keeping selection mode.
5. If you select flavor keeping during seasoning process, it will immediately end the seasoning and switch to flavor keeping.
At this time the storing temperature will automatically be set to “Mid”.
6. If you select the flavor keeping function, the refrigerator will lower the temperature to maintain the current Kimchi flavor.
(-1 degrees for “Min”, -0.5 degrees for “Mid” and -0 degrees for “Max”.)
7. During flavor keeping operation, a cold shock operation is done every 12 hours.
8. If you select rhythm fermenting during flavor keeping, the flavor keeping function will be canceled.
MICOM function and circuit description
- 10 -
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