Kucht K748FDS User manual

www.kucht.com
APPLICABLE MODEL: K748FDS
INSTALLATION GUIDE AND SERVICE MANUAL
K748FDS
FRENCH DOOR
REFRIGERATOR
BE A PRO IN YOUR KITCHEN
LOW
NOISE
LED
36”

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
Please observe the following safety precautions in order to use safely and correctly the
refrigerator and to prevent accident and danger during repair.
1. Be care of an electric shock. Disconnect power cord from wall outlet and wait for more
than three minutes before replacing PCB parts.
Shut off the power whenever replacing and repairing electric components.
2. When connecting power cord, please wait for more than five minutes after power cord
was disconnected from the wall outlet.
3. Please check if the power plug is pressed down by the refrigerator against the wall.
If the power plug was damaged, it may cause fire or electric shock.
4. If the wall outlet is over loaded, it may cause fire.
Please use its own individual electrical outlet for the refrigerator.
5. Please make sure the outlet is properly earthed, particularly in wet or damp area.
6. Use standard electrical components when replacing them.
7. Make sure the hook is correctly engaged.
Remove dust and foreign materials from the housing and connecting parts.
8. Do not fray, damage, machine, heavily bend, pull out or twist the power cord.
9. Please check the evidence of moisture intrusion in the electrical components.
Replace the parts or mask it with insulation tapes if moisture intrusion was confirmed.
10. Do not touch the icemaker with hands or tools to confirm the operation of geared motor.
11. Do not let the customers repair, disassemble and reconstruct the refrigerator for
themselves.
It may cause accident, electric shock, or fire.
12. Do not store flammable materials such as ether, benzene, alcohol, chemicals, gas,
or medicine in the refrigerator.
13. Do not put flower vase, cup, cosmetics, chemicals, etc., or container with full of water
on the top of the refrigerator.
14. Do not put glass bottles with full of water into the freezer.
The contents shall freeze and break the glass bottles.
15. When you scrap the refrigerator, please disconnect the door gasket first and scrap it
where children are not accessible.
1. Warnings and Precautions for Safety

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
Model Name 111.7302*710
-****
Volume
AHAM 2008
Total 26.1cuft.
Freezer 7.8cuft.
Refrigerator 18.3cuft.
External Dimension
(Width * Depth * Height)
35.98 “ x 69.81” x 33.78”
(w/o Handle)
Rated Voltage 115~120V / 60Hz
Weight
Net 282lb (128Kg)
Gross (w/ Package) 310lb (141Kg)
C
O
O
L
I
N
G
Comp
Model EGD80HLC
Motor Type -
Motor Protection 4TM445KFBYY-53
Running Capacitor 250VAC/13
Starting Device Type -
Starting Device -
Controller Unit (Inverter) -
Refrigerant R-134a
Quantity 6.7oz (190g)
Evaporator Fin Type
Condenser Fan Cooling System
Dryer Molecular Sieve XH-9
Door Switch
Freezer On right front side of freezer wall
Refrigerator In Top Cover Hinge
Lamp
Freezer 5-LED
Refrigerator 9-LED
Dispenser N/A
Icemaker
Location Freezer
Type Auto Twisting with 7 Cube Tray
2. Specifications

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disconnect unit from power before servicing unless tests require power.
Sensor
Defrost In Evaporator Assembly
Freezer On top side of the freezer wall
Refrigerator In Multi Flow Duct Assembly
RT Between Top Cabinet and Top
Cover Hinge
Icemaker Room Temp. N/A
Pantry Drawer Temp. N/A
Water Flow In Valve Water Assembly
Heater
Freezer Eva. AC115V / 200W / 61~71Ω
/ Sheath
Refrigerator Eva. AC115V / 200W / 61~71Ω
/ Sheath
Division AC115V / 8W / 1521 ~ 1785Ω
Water Tank N/A
Dispenser Ice Flap N/A
R Motor behind Eva N/A
Icemaker Water Hose AC120V / 5.5W / 2409~2828Ω
Icemaker Room Heater N/A
Fuse Temp (Defrost) AC250V , 10A , 77
Motor
Freezer Fan DC13V / D4612AAA29
Refrigerator Fan DC13V / D4612AAA36
Condenser Fan DC13V / D4612AAA28
Dispenser Ice Shut N/A
Ice Crusher N/A
Ice Type Selector N/A
Damper DC12V / DU24-113 / 1pcs
2. Specifications
(continued)

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disconnect unit from power before servicing unless tests require power.
3. External Dimensions

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disconnect unit from power before servicing unless tests require power.
4-1. Exterior
4. Features
Grill
Freezer Handle
Sticker written “F”
inside handle for
correct assembly
Refrigerator Handle
Sticker written “R”
inside handles for
correct assembly
Included Parts
Hex Wrench(2.5mm) in User Manual Bag, Standoff
Screws on doors

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disconnect unit from power before servicing unless tests require power.
4-2. Interior
4. Features
Front Control Panel
Dairy Bin
Utility Bin
Adjustable
Gallon Bin
Adjustable
Mullion Bar
Shelves
Adjustable,
Spill proof
Gallon Bin
Adjustable
Auto Pull Out Drawer
Freezer Base Drawer
Button Door Switch
Icemaker
Humidity Controlled
Crisper
Vegetable & Fruit
Tactile Switch, LED Display

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disconnect unit from power before servicing unless tests require power.
4-3. Others
4. Features
RT Sensor Refrigerator Sensor
Freezer Sensor
Freezer Door Switch
Refrigerator
Fan Motor
Freezer
Fan Motor
in Lover Ass’y
Refrigerator Door Switches
Icemaker
with 7 Cube Tray
Icemaker
with 10 Cube Tray

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disconnect unit from power before servicing unless tests require power.
Rear
4-4. Others (Continued)
4. Features
Discharge Part
in Compressor
Compressor
Hot Pipe
(Outlet)
Hot Pipe
(Inlet)
Condenser
Fan Connector
Condenser Fan
Dryer
Condenser Valve
Water Ass’y
Flow Sensor
in Valve Water Ass’y
Case Vaporizer
(Tray Drip)
Hose Drainage (two pc.)
Icemaker Water
1/4” Tube
Main PCB Cover
Machine Room
Pipe Condenser Conn
Pipe Suction
Conn

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-1. Water Valve Assembly
Step Description
1
2
3
Remark :
10. Disassemble/Assemble Procedures
Turn off the main water supply to the appliance.
Remove cover
machine room on the
back side of
refrigerator and
unscrew.
Remove ¼” tube connected
to water flow sensor from
the hose icemaker tube
while pressing the part (A).
•Remove any residual matter inside the water supply line after installation.
1) Turn on the main water supply to the refrigerator .
2) Do the icemaker Test Mode and throw away the ice on tray.
3) And then empty the ice storage bucket check. Be sure no water on the bucket.
Follow the reverse order when assembling.
A
Water Flow Sensor
Neutral

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-2. Icemaker and Hose Icemaker Tube Assembly
Step Description Step Description
15
26
3
4
Remark :
10. Disassemble/Assemble Procedures
Follow the reverse order when assembling.
Remove drawers
Unscrew and
remove icemaker
on the top of the
freezer wall.
Disconnect the connector of icemaker.
Disconnect the
connector of
Hose Icemaker
Tube Heater.
Unscrew and remove the hose icemaker tube cover
on back of cabinet.
Remove icemaker tube and silicon water inlet part.
And then pull out the hose carefully not to damage
the wires.
•After assembling, push the test button and confirm the icemaker operation include water supply.
•After finishing test, the ice bucket should be emptied because the ice cubes in icemaker tray could be not fully frozen.
Neutral

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-3. Cover Multi-duct Assembly
Step Description Step Description
15
26
37
48
Remark :
10. Disassemble/Assemble Procedures
Remove shelves and two
vegetable cases.
Remove the
vegetable
cover. and full
wide drawer
cover.
Follow the reverse order when assembling.
Remove two caps with a thin flat tool.
Loosen the upper
screw(big one; outside
diameter of thread 5mm)
and lower screw(small
one; outside diameter of
thread 4mm)
•Do not use the small screw in the upper side of Multi-duct Assembly. The screw could be loose.
Hold the top side of
the Cover Multi-duct
and then pull it to
release hooks.
Disconnect a sensor connector and a damper
connector from back wall.
Press two fixing hooks in top of the divider and pull
the divide out from the vegetable cover to remove.
Remove the
full wide
drawer cover.

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-4. Refrigerator Sensor and R Damper in Cover Multi-duct Assembly
Step Description
1
2
3
4
Remark :
10. Disassemble/Assemble Procedures
Separate the insulator from the multi-duct cover.
Remove R sensor on the upper side of cover.
Take off the tape and
separate Insulator C
covered R damper.
Before disassembly
check the arrangement
of wires and connector.
Separate Insulator D and remove R damper.
Follow the reverse order when assembling.
Insulator C
Insulator D

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-5. Freezer Louver Assembly
Step Description Step Description
15
2
3
4
Remark :
10. Disassemble/Assemble Procedures
Follow the reverse order when assembling.
Remove freezer drawers.
Press the left fixing hook of the rail system.
Holding the top of the F door, pull it out a little to
release. Repeat release the right hook as same way.
And then fully open the door to remove.
•After installing the f door, fully push and close it to align left and right rack gear tooth. And check locking rail system.
•If necessary, assemble one Gear F Rail *M in the rail system. Push and assemble another one Gear Rail F *M on
opposite side of rail.
Gear F rail *M
(Material : plastic)
Supporter F Rail
Gear *M
(Material : plastic)
Fixture F Rail *M
(Material : steel bar)
Rail System
Remove two caps and screws.
Holding the left side of Louver, pull it forward.
Be careful no to damage the wires in the right side.
Disconnect the connectors of F fan motor.

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-6. Freezer Sensor
Step Description
1
10. Disassemble/Assemble Procedures
Remove F sensor cover from the top of the
freezer wall.
Follow the reverse order when assembling.

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-7. F Fan and Fan Motor
Step Description Step Description
15
2
3
4
Remark :
10. Disassemble/Assemble Procedures
Follow the reverse order when assembling.
Loosen 8 screws to remove Fixture F Motor A.
Loosen a screw to remove Cover Fan Motor
Separate the wires from hook. Remember how to
arrange the wires.
Break the shaft(plastic) of fan blade. Do not use the
old fan again. Be careful not to damage the shaft of
motor if the motor is used again. Remove the fan
and motor.
Supporting the back side of fan
with a finger, pull out and
remove the fixing spring with a
long nose plier. If necessary,
scratch the lock paint(green
one).
Fixture F Motor A
Show the left picture. If you strongly
pull out the fan blade and remove, the
fan and shaft of the motor will be
damage and have a bad performance.
NG

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-8. Refrigerator Fan and Fan Motor in freezer
Step Description Step Description
15
26
3
4
Remark :
10. Disassemble/Assemble Procedures
Follow the reverse order when assembling.
Loosen 3 special screws(stay bolts) and
disconnect the connector.
Separate the R Fan
Motor assembly.
NG Show the left picture. If you
strongly pull out the fan blade
and remove, the fan and shaft
of the motor will be damage
and have a bad performance.
Remember how to arrange the wires.
Remove wires from a hooks.
If necessary, remove the
rubber vibration isolator in the
front of the Fixture R Motor.
Supporting the back side of fan
with a finger, pull out and
remove the fixing spring with a
long nose plier. If necessary,
scratch the lock paint(green
one).
Break the shaft(plastic) of fan blade. Do not use the
old fan again. Be careful not to damage the shaft of
motor if the motor is used again.
Remove the fan and motor.

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-9. Freezer Defrost Sensor and Heater in the Evaporator Assembly
Step Description Step Description
15
26
3
4
Remark :
10. Disassemble/Assemble Procedures
Remove the connectors of R(middle) & F(right)
Defrost Sensor and R(left) & F(right) Heater
Pull out the evaporator from 3 hooks on the
back wall.
Follow the reverse order when assembling.
Cut the cable ties
and remove the
defrost sensors
on middle and
right side of Eva.
Cut the cable ties and remove two temp fuses on
left and right side of Eva.
•Do not miss cable ties. They could block two drain holes
and the drain water will overflow into freezer.
Spread out the upper
clamping parts (the left and
right side of Eva) to remove
the pipe of defrost heater.
Bend out the lower clamping
parts (the left and right side
of Eva) to remove the pipe of
defrost heater.
Remove F/R heater from Eva.
Neutral

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-10. Condenser Fan Motor in the Machine Room
Step Description Step Description
15
26
37
4
Remark :
10. Disassemble/Assemble Procedures
Follow the reverse order when assembling.
Disconnect the connector
of C Fan Motor.
Loosen 2 screws.
Push the fixing hook
in the left direction
to separate the C
Fan Motor
Assembly.
Supporting the back side of
fan with 2 fingers, pull out and
remove the fixing spring with
a long nose plier. If necessary,
scratch the lock paint(green
one).
Break the shaft(plastic) of fan blade. Do not use the
old fan again. Be careful not to damage the shaft of
motor if the motor is used again. If necessary,
scratch the lock paint(green one).
Loosen 2 screws.
Remember how to
arrange the wires.
Remove the C fan motor.

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! WARNING To avoid risk of electrical shock that can cause death or severe personal injury,
disconnect unit from power before servicing unless tests require power.
10-11. Freezer and Refrigerator Door Switches
Step Description Step Description
11
2
2
Remark :
10. Disassemble/Assemble Procedures
Follow the reverse order when assembling.
Remove the F door
switch with flat-blade
screwdriver.
Disconnect the
connector.
Loosen screws and remove the top hinge cover.
Remove two door switches and disconnect the
connectors.