Daewoo Q600 series User manual

CAUTION
PLEASE READ CAREFULLY THE SAFETY PRECAUTIONS OF THIS BOOK
SxS Refrigerator
Service Manual
BEFORE CHECKING OR OPERATING THE REFRIGERATOR.
2013. Dec.

This indicates that minor to
moderate injuries may occur
as a result of not observing
this warning.
Caution
This indicates that death or
Serious injuries may occur
As a result of not observing
this warning.
◆ Please read [Cautions for Safety] carefully in advance and use the refrigerator correctly.
Warning
◆ Meaning of marking
Don’t Disassemble.
Disconnect the power plug.
Prohibited / Don’t try to do it.
Enforced / You should observe
instructions.
For your safety, please observe following items
Warning
When connecting the power
plug, make sure it is fastened
certainly.
◇ Electrical insulation will be
weakened and causing electric
shock or fire outbreak.
Do not install refrigerator in humid
environments.
◇ If electrical insulation were
weakened, it would cause electric
shock or fire outbreak.
When inserting the power plug,
the direction of the electrical cord
is downward.
◇ When the direction of cord is
inserted upward, it may be
damaged and causing short circuit
and overheat. then electric shock
or fire outbreak may occur.
When you feel a combustible gas
leaking, air the area so that
the refrigerator does not exposed
to gas.
◇ A spark at an electrical contact
point may cause an explosion, fire
or burning damage.
When the power cord is damaged,
please make a call for a service.
◇ It may cause fire outbreak,
electric shock or short circuit.
Before disposing of refrigerator,
remove the rubber packing of
the doors.
◇ Children can lock themselves
in the refrigerator and may be
suffocated.
1. Safety Warnings & Cautions
1

Don’t put combustible inside.
◇ Thinner, benzene, LP gas and
adhesive may catch fire or
cause explosion.
Don’t use flammable spray nearby.
◇ Spark at a contact point may
cause a fire outbreak.
Never disassemble or modify it.
◇ A fire outbreak or malfunctioning
may occur.
Don’t climb over the refrigerator.
◇ It may be overturned and
hurt you.
Don’t hold the door and pull it down.
◇ The refrigerator may fall down
or your hand may be squeezed
and harmed.
Don’t adjust the shelf with food
on it.
◇ It may fall down to hurt you.
Don’t spill water on the main body
or inside.
◇ Electrical insulation may be
deteriorated, causing electric shock
or a fire outbreak.
Don’t hold the power plug with
a wet hand.
◇ It may cause electric
shock.
Warning
Don’t let the power cord touched
by a heater.
◇ Damaged cord may cause a fire
outbreak or electric shock.
◇ If the cord is damaged, stop
using it and ask for a change by the
service center.
Don’t put a container filled with water
on it.
◇ If water is spilt, insulation of the
electrical parts may be
deteriorated, causing short circuit,
electric shock or a fire outbreak.
Don’t use a damaged power cord
or plug or a loose outlet.
◇ They may cause short circuit and
overheat, so that electric shock or a
fire outbreak may occur.
When pulling off the electric plug,
avoid holding only the cable.
◇ The cable may be damaged,
causing electric shock or a
fire outbreak.
◇ Be sure to hold the power plug
to pull it off.
Don’t use a branched electrical outlet.
◇ Multi-branched power
connection may cause abnormal
overheat and a fire outbreak.
◇ Use a single-connection
electrical outlet with rated 220V
or more.
The power plug or cable shall not
be pressed by the refrigerator or
other things.
◇ Damage may be caused,
followed by a fire outbreak.
Be sure the power supply is 220V.
◇ Otherwise, a fire outbreak,
electric shock or disorder may
be caused.
Don’t let the power cord pressed by
heavy things nor pull or bend it hard.
◇ Damaged coating may cause a
fire or electric shock.
2

When changing the light inside, be
sure to disconnect the power.
◇ Electric shock may occur.
When the fuse is exchanged, use
one with the same capacity.
◇ Otherwise, fire may be caused.
Warning
Don’t put medicine or academic
materials inside.
◇ Don’t put materials that strict
temperature control is needed for in
a domestic refrigerator.
When you put your hand in the
machine room at the rear bottom,
be sure to unplug the
power connection.
◇ Otherwise, electric shock or
burning may occur.
Grounding shall not be onto a water
pipe, a gas pipe, a telephone line or
a lightening rod.
◇ Fire or electric shock may occur.
◇ For grounding, be sure to ask
the seller.
Solid grounding shall be made.
◇ Short circuit by a disorder may
cause electric shock.
◇ For grounding, be sure to ask
the seller.
Don’t touch the food or containers
in the fridge or freezing
compartment with a wet hand.
◇ You may suffer from frostbite.
Don’t put a bottle in the
Freezer.
◇ It may be broken and hurt you.
If it is not in use for long, unplug
the power cord.
◇ Otherwise, fire outbreak
may occur.
Caution
When moving it, raise the
adjustment feet.
◇ Otherwise, the floor may
be damaged.
◇ A protection cover shall be used
on a damage-prone floor.
When moving it, hold the adjustment
feet and the rear upper part.
◇ When holding the rear upper
part, be careful not to let your
hand slip.
◇ If it slips, it may be hurt.
Don’t put your hand under the
bottom of the refrigerator.
◇ If you do while cleaning, you
may get hurt on the sharp steel
sheet.
When changing the light inside,
wear gloves so that you may not to
be burned or hurt by a breaking.
Don’t eat odorous or
color-changed food.
◇ Long keeping even in the fridge
or Freezer may
spoil food.
Don’t put your hand on the
compressor or the pipes at the
rear bottom.
◇ Those parts are hot while in or
right after operation and so they
may burn you.
3

2-1. Product Specification
Items Product Specification
Model Name FRQ-19D... (Dispenser only ) FRQ-19F... ( Dispenser + H/bar )
( Effective
Capacity
Total Capacity 512ℓ
Freezing Compart. 4star: 134ℓ / 2star: 25ℓ
Fridge Compart. 353ℓ
External Size_mm
(WidthXDepthXHeight 912X795.8X1771
Heating Device Rated Input 250 W
Refrigerator Kind Indirect cooling type
Cooling Media / Sealed Quant’y R600a ( 0.064kg ) or R-134a ( 0.160kg )
Climate Grade SN ~ T
Weight 97 kg 100 kg
2-2. Electrical Part Specification
Items Product Specification
Model Name FRQ-19D... (Dispenser only ) FRQ-19F... ( Dispenser + H/bar )
Freezing Performance 4-Star
Freezing
Parts
Evaporator FIN TYPE
Condenser Forced circulation type
dryer MOLECULAR SIEVE XH-9
Capillary Tube IDΦ0.7 X 0.55t X L2,365
Defrost
ing
Parts
Defrosting Heater 250W
D-sensor (Type/
Return Temperature) PBN-43 / 13℃
Temperature Fuse 250V / 10A / 77 (+0,-4)℃
2. Product Specification
4

Items Specification
Model Name FRQ-19D... (Dispenser only ) FRQ-19F... ( Dispenser + H/bar )
Other
Electronic
Unit Spec.
Main Fuse AC250V /12A
Home-bar Heater 230V / 10W (Control per RT & time)
Freezing Compart.(F) Fan Motor DC12V / Φ140
Condenser(C) Fan Motor DC12V / Φ150
Freezing Compart.(R) Damper DC12V
Switchable Room Damper -
Freezer Light LED ( DC12V / 1.20W )
Fridge Light LED ( DC12V / 1.69W )
Freez./Fridge Compart. Door Switch SP101B-2D1 (AC 250 V, 0.5A)
Home-bar Door Switch - DC 12V / RS-D4
(REED S/W + MAGNET)
power cord AC250V 16A(VDE)
F / R-sensor N3RC-K32D / N3JC-K41A
ICING / FLOW-sensor N3JC-K35D-D94 / SH-F 110L
2-3. Controlled Temperature of the Freezing & Fridges
5
Freezer Fridge
Stage Display ON / OFF Stage Display ON / OFF
Weak -16 -12.0 / -16.0 Weak 8 9.4 / 9.9
Weak-to-medium1 -17 -14.8 / -18.8 Weak-to-medium1 7 8.5 / 8.9
Weak-to-medium2 -18 -15.8 / -19.8 Weak-to-medium2 6 7.4 / 7.9
Medium -19 -16.8 / -20.8 Medium 5 6.5 / 7.0
Medium-to-strong1 -20 -17.4 / -21.4 Medium-to-strong1 4 5.5 / 6.0
Medium-to-strong2 -21 -19.0 / -23.0 Medium-to-strong2 3 4.5 / 5.0
Strong -22 -22.0 / -26.0 Strong 2 3.5 / 3.9
Quick -22 - Quick 2 -

3-1. Normal Compressor
3. Wiring Diagram
6

3-2. Inverter Compressor
7

4-1. FRQ-19D... (Dispenser only )
4. External Size and Names of the Refrigerator
8

4-2. FRQ-19F... ( Dispenser + H/bar )
9

4-3. Part Name (FRQ-19D... )
2
1
3
7
8
10
4
20
15
12
13
16
14
Freezer Fridge
1. Freezer Pocket 11. Upper Fridge Pocket
2. Upper Ice Crusher Cover 12. Lower Fridge Pocket
3. Lower Ice Crusher Cover 13. Damper Cover
4. Freezer Internal Light 14. Fridge Internal Light
5. Freezer Shelf 15. Fridge Shelf
6. Dried Food Case Cover 16. Upper Vegetable Case Cover
7. Dried Food Case 17. Upper Vegetable Case
8. Meat/Fish Case Cover 18. Lower Vegetable Case Cover
9. Meat/Fish Case 19. Lower Vegetable Case
10. Front Cover 20. Egg Tray
10
5
17
6
9
18
19
11

4-4. Part Name (FRQ-19F... )
2
1
3
6
8
10
4
21
15
12
13
16
14
Freezer Fridge
1. Freezer Pocket 11. Upper Fridge Pocket
2. Upper Ice Crusher Cover 12. Lower Fridge Pocket
3. Lower Ice Crusher Cover 13. Damper Cover
4. Freezer Internal Light 14. Fridge Internal Light
5. Freezer Shelf 15. Fridge Shelf
6. Dried Food Case Cover 16. Upper Vegetable Case Cover
7. Dried Food Case 17. Upper Vegetable Case
8. Meat/Fish Case Cover 18. Lower Vegetable Case Cover
9. Meat/Fish Case 19. Lower Vegetable Case
10. Front Cover 20. Home Bar
21. Egg Tray
11
5
19
20
9
717
18
11

5. Refrigeration Cycle
12
▶Welding Specification
▶Refrigerent Flow
●
■
Copper Soldering (Ag 3%) 7 Points
3 Points
Silver Soldering (Ag 30%)

1. “Freezing Adjustment” Button
1) Press “Freezing Adjustment” Button to have it run in staged temperature adjustment (7 stages)
and quick freezing (max. limit 24 hours). In quick freezing running, “ * “ is on; otherwise, it is off.
2) Initial default setup at the power connection is “medium” stage, with the setup temperature -19℃ displayed.
Order of display:
Medium(-19℃)→Medium-to-strong1(-20℃)→Medium-to-strong2(-21℃)→Strong(-22℃)
→Quick(-22℃)→Weak(-16℃)→Weak-to-medium1(-17℃)→Weak-to-medium2(-18℃)
3) When Quick freezing is chosen, “Quick Icon” flickers 6 times before it is lighted, with the setup
temperature displayed the same as in dial “Strong”.
4) Freezing Adjustment stages & displays
5) When Quick freezing is finished, Dial will automatically turn to “Medium(-19℃)”.
Input Parts Control Object
Contents
1. F-PCB Button
2. Freezing Adjustment, Fridge Adjustment
3. lock Button
1.Display
6-1. Display ( None crusher model )
Adjustment Stages W WM1 WM2 M MS1 MS2 S Q
Setup Temperature(℃) -16 -17 -18 -19 -20 -21 -22 -22
2. “Fridge Adjustment” Button
1) Press “Fridge Adjustment” Button to have it run in staged temperature adjustment (7 stages)
and quick fridge(max. limit 40 minutes). In quick freezing running, “ * “ is on; otherwise, it is off.
2) Initial default setup at the power connection is “medium” stage, with the setup temperature 2℃ displayed.
Order of display:
Medium(4℃)→Medium-to-strong(3℃)→Strong(2℃)→Quick(2℃)→Weak(8℃)→Weak-to-medium1(7℃)
→Weak-to-medium2(6℃)→Weak-to-medium3(5℃)
3) When Quick operation is chosen, “Quick Icon” flickers 6 times before it is lighted, with the setup
temperature displayed the same as in dial “Strong”.
13
6. Functions & Usage of the Refrigerator

3. “lock” Function Button
1) lock Setup
- Press “lock” button for 0.5 seconds to have the “lock Icon” On
- When “lock” is set up, no key input (including the dispense switch) is possible nor the buzzer will ring.
2) Cancel: Press the “lock” function button for 3 seconds to cancel the lock state.
Contents
2. “Fridge Adjustment” Button
4) Fridge Adjustment stages & displays
5) When Quick fridge is finished, Dial will automatically turn to “Medium(4℃)”.
Adjustment Stages W WM1 WM2 WM3 M MS S Q
Setup Temperature(℃) 8 7 6 5 4 3 2 2
4. Power Save Function
All LED will be turned off one minute after a final key input or a door closing
(with Lock LED and Water/Ice LED not included).
14
5. Dispenser select
Led above the icon will light up to indicate your selection.
1) 1st ‘Dispenser’ button, water is available.
2) 2nd ‘Dispenser’ button, cubed ice is available.
3) 3rd ‘Dispenser’ button, dispenser lock.

1. “Freezing Adjustment” Button
1) Press “Freezing Adjustment” Button to have it run in staged temperature adjustment (7 stages)
and quick freezing (max. limit 24 hours). In quick freezing running, “ * “ is on; otherwise, it is off.
2) Initial default setup at the power connection is “medium” stage, with the setup temperature -19℃ displayed.
Order of display:
Medium(-19℃)→Medium-to-strong1(-20℃)→Medium-to-strong2(-21℃)→Strong(-22℃)
→Quick(-22℃)→Weak(-16℃)→Weak-to-medium1(-17℃)→Weak-to-medium2(-18℃)
3) When Quick freezing is chosen, “Quick Icon” flickers 6 times before it is lighted, with the setup
temperature displayed the same as in dial “Strong”.
4) Freezing Adjustment stages & displays
5) When Quick freezing is finished, Dial will automatically turn to “Medium(-19℃)”.
Input Parts Control Object
Contents
1. F-PCB Button
2. Freezing Adjustment, Fridge Adjustment
3. lock Button
1.Display
6-1. Display ( Crusher model )
Adjustment Stages W WM1 WM2 M MS1 MS2 S Q
Setup Temperature(℃) -16 -17 -18 -19 -20 -21 -22 -22
2. “Fridge Adjustment” Button
1) Press “Fridge Adjustment” Button to have it run in staged temperature adjustment (7 stages)
and quick fridge(max. limit 40 minutes). In quick freezing running, “ * “ is on; otherwise, it is off.
2) Initial default setup at the power connection is “medium” stage, with the setup temperature 2℃ displayed.
Order of display:
Medium(4℃)→Medium-to-strong(3℃)→Strong(2℃)→Quick(2℃)→Weak(8℃)→Weak-to-medium1(7℃)
→Weak-to-medium2(6℃)→Weak-to-medium3(5℃)
3) When Quick operation is chosen, “Quick Icon” flickers 6 times before it is lighted, with the setup
temperature displayed the same as in dial “Strong”.
15

3. “lock” Function Button
1) lock Setup
- Press “lock” button for 0.5 seconds to have the “lock Icon” On
- When “lock” is set up, no key input (including the dispense switch) is possible nor the buzzer will ring.
2) Cancel: Press the “lock” function button for 3 seconds to cancel the lock state.
Contents
2. “Fridge Adjustment” Button
4) Fridge Adjustment stages & displays
5) When Quick fridge is finished, Dial will automatically turn to “Medium(4℃)”.
Adjustment Stages W WM1 WM2 WM3 M MS S Q
Setup Temperature(℃) 8 7 6 5 4 3 2 2
4. Power Save Function
All LED will be turned off one minute after a final key input or a door closing
(with Lock LED and Water/Ice LED not included).
16
5. Dispenser select
Led above the icon will light up to indicate your selection.
1) 1st ‘Dispenser’ button, water is available.
2) 2nd ‘Dispenser’ button, cubed ice is available.
3) 3rd ‘Dispenser’ button, crushed ice is available.
4) 4th ‘Dispenser’ button, dispenser lock.

Input Parts Control Object
1. Freezer Temperature Adjustment Button
2. F-Sensor
1. Comp
2. F-Fan
6-2. Freezer Temperature Adjustment
6. Quick Freezing
1) In Quick Freezing, it is run by ‘Strong’ dial of F-Dial for the limited time(24 hours).
2) When Quick Freezing is closed by the time limit or the F-Sensor is Off point, it is run with the ‘Medium’
dial value of the F-Dial.
3) During a Quick Freezing operation, defrosting cannot be started. If Quick Freezing is set up in defrosting,
Quick Freezing will be run after the defrosting.
Contents
17
1. Press the Freezer button to adjust the Freezer temperature.
Medium(-19℃)→Medium-to-strong1(-20℃)→Medium-to-strong2(-21℃)→Strong(-22℃)
→Quick(-22℃)→Weak(-16℃)→Weak-to-medium1(-17℃)→Weak-to-medium2(-18℃)
2. Comp and F-fan are controlled by Dial On / Off.
3. On / Off Diff of the Freezer: 4.0℃
Medium Off point of the Freezer : -20.8℃
4. Freezer Diff for each step
1) Weak → Weak-to-medium1 : 3.0 deg.
2) Weak-to-medium1 → Weak-to-medium2 → Medium : 1.0 deg.
3) Medium → Medium-to-strong1 : 0.6 deg.
4) Medium-to-strong1 → Medium-to-strong2 : 1.4 deg.
5) Medium-to-strong2 → Strong : 3.0 deg.
5. Control Point for each Dial (F-Sensor Detection Temperature)
-8.8 ℃
-13.3 ℃
-12.0 ℃
-16.3 ℃
-13.1 ℃
-17.2 ℃
-14.1 ℃
-18.2 ℃
-15.1 ℃
-19.1 ℃
-17.0 ℃
-20.9 ℃
-18.9 ℃
-22.8 ℃
temp.
Weak (Weak to medium1,2) Medium (Medium to strong1,2) Strong
MODE
ON Point
ON/OFF DIFF
OFF Point

Input Parts Control Object
6-3. Fridge Temperature Adjustment
1. Fridge Temperature Adjustment Button
2. R-Sensor
1. Comp
2. F-Fan
3. Damper
1. Press the Freezer button to adjust the setup temperature of the Freezer.
Medium(4℃)→Medium-to-strong(3℃)→Strong(2℃)→Quick(2℃)→Weak(8℃)→Weak-to-
medium1(7℃)→Weak-to-medium2(6℃)→Weak-to-medium3(5℃)
2. Comp and F-fan are controlled by the On / Off points of each Dial.
3. On / Off Diff of the Fridge: 0.5℃
Fridge “Medium” Off point: 5.5℃
4. Fridge Step Diff
1) Each Step Diff: 1 deg.
(At low room temperature (RT-S of 19℃ or less), Dial ‘Medium, Medium-to-strong, Strong’ will lower the On/Off
points by 1℃, while at high room temperature (RT-S of 41℃ of more), Dial ‘Medium, Medium-to-strong,
Strong’ will lower the On/Off points by 0.3℃.)
5. Prevention of Weak Cooling
1) When Weak Cooling is detected, Comp is turned on, regardless of F-Sensor.
2) When R-sensor reaches R-Damper Close point, Comp is controlled by the F-sensor and R-Damper is Close.
3) Weak Cooling detection point: R-Damper Close of each Mode + 7℃
4) Weak Cooling cancellation point: the same as the R-Damper Close point of each Mode
6. Control Point for each Dial (R-Sensor detection temperature)
Contents
7. Quick Fridge
1) In Quick Fridge, it is run in ‘Strong’ dial of the R-Dial for the limited time (40 minutes).
2) Until the R-sensor reaches the Overcooling Off point(-7deg.), R-Damper is open and F-Fan /
Comp are On.
3) After the Overheating Off point is reached, it is run by Dial “strong” On/Off points until 40
minutes of Quick Fridge is finished.
4) When the Quick Fridge is finished, it will turn to normal operation.
18
9.9℃
9.4℃
8.9℃
8.5℃
7.9℃
7.4℃
7.0℃
6.5℃
6.0℃
5.5℃
5.0℃
4.5℃
3.9℃
3.5℃
temp.
Weak
(Weak to medium1,2,3)
Medium
Medium to strong
Strong
MODE
16.5 ℃15.5℃14.5℃13.5 ℃12.5℃11.5℃10.5℃
ON Point
ON/OFF DIFF
(0.5 deg)
OFF Point
Week Cooling check
(OFF Point + 7.0 deg)
STEP DIFF STEP DIFF

Contents
1. R-Sensor
2. F-Sensor
1. F-Fan
2. C-Fan
Control Mode Normal Quick Freezing Load
Response1
Load
Response2 RT-S 39℃ or more
F-FAN voltage 10V 12V 12V 13V 13V
● Normal Control ☞ Low operation mode with soft noise
● Load Response ☞ Operation mode when the temperature in the compartments is deemed escalating by
usage condition.
2. Load Response Mode
1) Purpose: To recover the temperature of the compartment escalated by overload or an opening of the
door.
2) Display Method: There is no separate display.
3) Conditions for Load Response1 startup and cancellation, and its control method
1. Fan RPM for each control Mode
1) F-Fan Motor voltage
Input Parts Control Object
6-4. Fan Control at each Mode
Freezer Load Response Fridge Load Response
Startup Condition
1. F/R-Door opening of 30 seconds or more
2. F/S On Point + 5deg. or more detected 2. R/S On Point + 5deg. or more detected
Cancel. Condition F-Sensor value < Off point R-Sensor value < Off point
Control Method Comp RPM is controlled to change to the next higher stage of RPM
4) Conditions for Load Response2 startup and cancellation, and its control method
Freezer Load Response Fridge Load Response
Startup Condition
1. Load Response1 at RT-S 29 ℃ or less
2. When COMP has continuously operated for 6 hours
Cancel. Condition Cancelled if the defrosting is started
Control Method Operation with Comp RPM being 3990
19