Daewoo FRS-U20DB, FRS-U20IB, FRS-U20EB, FRN-U20FB, FRN-U20GB Service Manual

...

Refrigerator

S/M No: RNU20IB001

FRN-U20DB

FRN-U20IB* FRS-U20IB*

FRU-577I~ FRU-547D/E~ FRU-547F/G~

FRN-U20EB FRS-U20DB FRS-U20EB

* * *

FRN-U20FB

FRN-U20GB

FRS-U20FB

FRS-U20GB

* * *

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✔

Caution

: In this Manual, some parts can be changed for improving, their performance without notice in the parts list. So, if you need the latest parts information,please refer to PPL(Parts Price List) in Service Information Center

- May, 2006

C O N T E N T S

1. WARNINGS AND PRECAUTIONS FOR SAFETY ----------------------------2

2. EXTERNAL VIEW

2-1. External Size ---------------------------------------------------3 2-2. Name of Each Parts ------------------------------------------6 2-3. Cold Air Circulation ----------------------------------------------8

3. SPECIFICATION --------------------------------------------------9

4. OPERATION AND FUNCTIONS --------------------------------------11

5. CIRCUIT OPERATION

5-1. Power Circuit Diagram --------------------------------------------31 5-2. Function of Each Sensor ------------------------------------------32 5-3. Relay Function --------------------------------------------------34 5-4. Fan Function ---------------------------------------------------36

6. DIAGRAM

6-1. Wiring Diagram --------------------------------------------------37 6-2. Circuit Diagram of Main PCB ---------------------------------------39

7. COMPONENT LOCATE VIEW -----------------------------------------43

8. HOW TO CHECK EACH PARTS

8-1. Hose Ice Maker Tube ---------------------------------------------45 8-2. Bracket Geared Motor ---------------------------------------------46 8-3. Dispenser Micro Switch --------------------------------------------47 8-4. Dispenser Solenoid Valve ------------------------------------------48 8-5. Main PCB ------------------------------------------------------49 8-6. Ice Maker ------------------------------------------------------51

9. TROUBLE DIAGNOSIS

9-1. Power Failure ----------------------------------------------------53 9-2. Freezer Compartment ---------------------------------------------54 9-3. Refrigerator Compartment ------------------------------------------60 9-4. Operation Noise of Refrigerator --------------------------------------65 9-5. Door -----------------------------------------------------------71

10. COOLING CYCLE HEAVY REPAIR

10-1. Summary of Heavy Repair ------------------------------------------72 10-2. Precaution during Heavy Repair --------------------------------------73 10-3. Practical Work for Heavy Repair --------------------------------------74 10-4. Standard Regulations for Heavy Repair --------------------------------76 10-5. Brazing Reference Drawing -----------------------------------------77

11. INSTALLATION GUIDE

11-1. Installation Preparation -------------------------------------------- 78 11-2. If the Refrigerator can not enter the Door ------------------------------ 79 11-3. Refrigerator Leveling & Door Adjustment -------------------------------80 11-4. Water Line Installation --------------------------------------------- 82 11-5. Dispenser Water Flow --------------------------------------------- 84

12. EXPLODED VIEW & PARTS LIST

-------------------------------------85

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1. WARNINGS AND PRECAUTIONS FOR SAFETY

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.

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2. EXTERNAL VIEWS

2-1. External Size

- FRS(N)-U20IB

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- FRS(N)-U20DB / EB

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- FRS(N)-U20FB / GB

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2-2. Name of Each Parts

- Basic Model

- Wine Rack is option

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Refrigerator CompartmentFreezer Compartment

6. Dairy pocket1. Freezer light

7. Refrigerator light2. Freezer pocket

8. Chilled case3. Ice tray

9. Movable Egg case4. Freezer shelf

10. Refrigerator shelf 5. Freezer case

11. Refrigerator pocket

12. Refrigerator case

- Full option Model

1 2

8 9

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-Full option Model illustrated.

-Features are model depe ndent.

Refrigerator CompartmentFreezer Compartment

7. Dairy pocket1. Ice cubes storage case

8. Refrigerator light2. Freezer light

9. Wine Rack3. Water/Ice Dispenser

10. Movable Egg case4. Freezer shelf

11. Refrigerator shelf5. Freezer pocket

12. Refrigerator pocket6. Freezer case

13. Magic room (option)

2-3. Cold Air Circulation

Freezer

Compartment

Refrigerator

Compartment

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3. SPECIFICATION

3-1. Specification

SpecificationItem

ISO Gross

Volume

(Li)

ISO Storage

Volume

(Li)

(Width x Depth x Height)

C Y C L E

Model Name

Weight

External Dimension

FRS(N)-

U20IB

537 Li 198 Li 339 Li

104kg

FRS(N)-

U20DB

541 Li 184 Li 357 Li 504 Li 170 Li 334 Li

903 mm x 734.5mm x 1790 mm

FRS(N)-

U20EB

525 Li570 LiTotal 178 Li209 LiFreezer 337 Li361 LiRefrigerator 504 LiTotal 170 LiFreezer 334 LiRefrigerator

Fin TypeEvaporator

Fan Cooling SystemCondenser

Molecular Sieve XH-9Dryer

IDΦ0.7 × T0.55 × L2200Capillary Tube

FRS(N)-

U20FB

541Li 184 Li 357 Li 504 Li 170 Li 334 Li

FRS(N)-

U20GB

536 Li 184 Li 352 Li 500 Li 170 Li 330 Li

117kg115kg113kg 115kg

MK183Q-L2UHPL30YG-5Description

Compressor

SWITCH

P RELAY AS

Description

Part Code

308NHB, S330

3018129810

※ ( ) is the specification for the model which use R-600a(refrigerant)

MK4A5Q-R1U

39561452503956183D50395S130R50Part Code

R-600a (76g)R-134a (190g)R-134a (190g)Refrigerant ( g )

265RHB, S330

3011402100

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Specification ( 220~240V Models only )Item

Basic ModelModel Name

D E

D-Sensor

PBN-43

Dispenser Model

PBN-38F-Sensor

R E S

R-Sensor

PBN-43

AC220V / 192WDefrost Heater

AC220V / 7WMain Duct Heater

E A T

AC220V / 8WLouver Heater

E R

AC220V / 5W-Dispenser Heater

AC220V / 5W-Water Pipe Heater

AC250V 15AMain Fuse (Power cord)

E L

AC250V , 10A , 77℃Fuse Temp (Defrost)

E C T

DC13V / 2050±100 rpmF-Fan Motor

DC13V / 1950

±100 rpmR-Fan Motor

C A L

Condenser

Fan Motor

DC13V / 1100±100 rpm

P A

F-Lamp

R T

R-Lamp

Door Switch , F / R

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AC230~240V / 25W (2EA)

SP201R-7DL / SP201R-7DR

(SPF101B-2D / SPF101B-1D)

4. OPERATION AND FUNCTIONS

4-1. Display

4-1-1. Basic Model

INPUT CONTROL OBJECT

FRZ.TEMP, REF.TEMP Inner Control (Lamp-LED)

CONTENTS REMARKS

1. “FRZ.TEMP” Button

1) Temperature control of Freezer compartment

2) 5 step mode of successive temperature mode.

3) Initial mode by power input : “3” ※Whenever pressing button, setting is repeated in the order of

Medium(3) → Medium Max(4) → Max(5) → Min(1) → Medium Min(2).

Temperature adjustment butt o n for freezer compartment.

Temperature adjustment butt o n for refrigerator compartment.

MinTemperature Chang

2. “REF.TEMP” button.

1) Temperature control of Refrig erator compartment

2) 5 step mode of successive temperature mode.

3) Initial mode by power input : “3”

※Whenever pressing button, setting is repeated in the order of

Medium(3) → Medium Max(4) → Max(5) → Min(1) → Medium Min(2).

MinTemperature Change

※ The actual inner temperature varies depending on the food status, as the indicated setting

temperature is a target temperature, not actual temperature within refrigerator.

※ Refrigeration function is weak in the initial time.

Please adjust temperature as above after using refrigerator for minimum2~3 days.

Medium

Min

Medium

Min

Mid

Medium

Max

Medium

Max

54321Temp indication

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4-1-2. Dispenser Model

Front PCB button FREEZER SET, REFRIGERATOR SET SUPER FREEZER, SUPER REFRIGERATOR RESET FILTER, WATER / ICE, ICE MAKER LOCK ,LOCK

Super freezer Temperature adjustment butt o n

for freezer compartment.

INPUT CONTROL OBJECT

FCP C-LED

CONTENTS REMARKS

Lock buttonWater filter reset Dispenser select button Ice maker lock button

Super Refrigerator

Temperature adjustment butt o n

for refrigerator compartment.

1. Display control

ControlFCP-LED

88 DISPLAY (SET TEMP.)

SUPER FREEZER,SUPER

REFRIGERATOR ICON

2. “FREEZER SET” Button

1) Temperature control of freezer compartment

2) 7 step mode of successive temperature mode.

3) Initial mode by power input : “Medium(-19℃)” ※Whenever pressing button, setting is repeated in the order of

Medium (-19℃) → Medium Max 1 (-20℃) → Medium Max 2 (-21 ℃) → Max (-22℃)

→ Min (-16℃) → Medium Min 2 (-17℃) → Medium Min 2 (-18℃).

Letters are indicated on 88 Display LED

Temperature

Change

Temp

indication

Min

Medium

Min 1

Medium

Initial mode : Freezer & Refrigerator set→

Min 2

-18℃

Medium

Medium (-19℃/4℃)

After six month, LED ONFILTER CHANGE ICON

-19℃

Dial

Always ONFUZZY, DEODORIZER ICON

DialWATER / CUBED ICE/ CRUSHED ICE ICON DialLOCK ICON DialICE MAKER LOCK ICON

Medium

Max 1

-20℃-17℃-16℃

Medium

Max 2

-21℃

Max

-22℃

3. “SUPER FREEZER” Button When this mode is chosen, the icon (FREEZER QUICK) is ON.

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CONTENTS REMARKS

4. “REFRIGERATOR SET” button.

1) Temperature control of Refrig erator compartment

2) 5 step mode of successive temperature mode.

3) Initial mode by power input : “Medium (4℃)” ※Whenever pressing button, setting is repeated in the order of

Medium (4℃) → Medium Max (3℃) → Max (2℃) → Min (6℃) → Medium Min (5℃).

Letters are indicated on 88 Display LED

MinTemperature Change

5. “SUPER REFRIGERATOR” button. When this mode is chosen, the icon (REFRIGERATOR QUICK) is ON.

6. “WATER / ICE”button

1) Select Water / Cubed Ice / Crushed Ice.

2) Icon lights up to show your selection is on. Initial mode by power input : “Water” mode.

3) The mode of Cubed Ice or Crushed Ice continues for 1 hour and then changes to Water. (Water icon turns ON)

7. “ICE MAKER LOCK” button

1) Start by pushing “ICE MAKER LOCK” button

① “ICE MAKER LOCK” icon is on ② “WATER” icon is always on

2) Stop by pushing “ICE MAKER LOCK” button again

① “ICE MAKER LOCK” icon is off ② “WATER”icon is on

8. “RESET WATER FILTER” button

1) The normal (ICON OFF) is on for 6 month after are first power input.

2) After sic months, icon is ON.

3) How to reset Filter information ① Push the “RESET WATER FILTER”button for 3 seconds after change.

Medium

Min

Mid

4℃5℃6℃Temp indication

Medium

Max

2℃3℃

REFERENCE : Please wait for 2-3 seconds in order to take final ice or drops of water when taking out cup from the pressing switches after taking ice or water.

9. “LOCK” button

1) This button stops operation of different button.

① “LOCK”icon is on ② Press this button to lock out this case and to keep temperature and

function setting.

2) Push “LOCK” button again for more than a second to stop it.

※ The actual inner temperature varies depending on the food status, as the indicated setting

temperature is a target temperature, not actual temperature within refrigerator.

※ Refrigeration function is weak in the initial time.

Please adjust temperature as above after using refrigerator for minimum2~3 days.

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4-2. Defrost Mode

1. Defrost Mode

INPUT CONTROL OBJECT

1. Comp

1. Defrosting Cycle

2. F-Fan

3. R-Fan

4. D-Heater

CONTENTS REMARKS

Pre-Cool

Heater

Defrosting

Pause

Fan-Delay

2.The defrost mode start with the following conditions

Pre-Cool

1) Time : 50 minutes

2) Comp , F-fan : ON R-fan : Control

D-HTR : OFF

3) If F-sensor ≤ -27℃, then Pre-Cool becomes. OFF

Heater Defrosting

1) Comp, F-fan, R-fan : OFF

D-HTR : ON

2) Time limit

30 seconds : Heater is ON regardless of D-sensor

temperature right after defrosting start 30 minutes : in case of D1- Error 80 minutes : in normal control state

3) If D-sensor ≥13℃, Heater Defrosting is OFF

Pause

Time : 7 minutes Comp, F-fan, R-fan, Heater etc. : OFF

Fan-Delay

1) Time : 5 minutes Comp : ON and F-fan, R-fan, Heater : OFF

1) Total operation time of comp. becomes : 6,8,10,……… 24 hours.

① Comp. operating rate : more 85% ② Total door open time : 2 minutes

(Any door, F or R open time is over 2 minutes.)

③ Any error mode : R1, F1, D1, F3, RT/S, Door-switch etc.)

2) Defrosting mode starts unconditionally as long as total comp. work time is 24 hours, even if the above conditions 1) are not satisfied.

3) Defrosting mode starts immediately as long as total time of [comp. ON + comp. OFF] is over 60 hours, even if the above 1) and 2) conditions are not satisfied.

3. In providing initial power (or returning power failure) If D-sensor temp. ≤ 3.5℃, defrosting mode starts .

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4. Flow Chart of Defrosting Start

CONTENTS REMARKS

Start

YES

Comp. operating time

is over 2 hours?

YES

Total time is

over 60 hours?

Comp. operating time

is over 24 hours?

Comp. operating time

is over 6 hours?

YES

Comp. operating rate

is more 85%?

YES

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Any error ?

Total door open

time is over 2 min?

EndDefrosting start

4-3. (Forced Defrosting) Mode

INPUT CONTROL OBJECT

1. Defrosting Cycle

CONTENTS REMARKS

1. A/S Defrosting Mode (Heater defrost → Pause → Fan Delay)

1. Comp

2. F-Fan

3. R-Fan

4. D-Heater

Heater

Defrosting

Pause

Fan-Delay

2. How to start

1) Push “REF.TEMP”button 5 times while pushing “FRZ.TEMP” button simultaneously.

--------- FRS-U20IA

2) In “LOCK” mode, push “REFRIGERATOR SET” button 5 times while pushing “FREEZER SET” button simultaneously. ------ FRS(N)-U20DA

3. How to proceed

1) Delete Pre-cool mode. (Others are same as normal defrosting)

2) Heater is ON regardless of D-sensor temp. at first 30 seconds.

(Check of defrosting current)

Heater Defrosting

1) Comp, F-fan, R-fan : OFF D-HTR : ON

2) Time limit

30 seconds : Heater is ON regardless of D-sensor

temperature right after defrosting start

30 minutes : in case of D1-Error 80 minutes : in normal control state

3) If D-sensor ≥13℃, Heater Defrosting is OFF

Pause

Time : 7 minutes Comp, F-fan, R-fan, Heater etc. : OFF

Fan-Delay

1) Time : 5 minutes Comp : ON F-fan, R-fan, Heater : OFF

4-4. Fan Voltage of Control Mode

INPUT CONTROL OBJECT

1. F-Sensor

2. R-Sensor

1. Fan voltage of control mode

※ Refer to the 5-4. (Fan Function )

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1. F-FAN, R-FAN, C-FAN

CONTENTS REMARKS

C-FANR-FANF-FANFAN

13 V13 V13 VVoltage

4-5. Louver Heater Control

INPUT CONTROL OBJECT

1. Comp

CONTENTS REMARKS

It is linked with comp.

4-6. Buzzer or Alarm Control

INPUT CONTROL OBJECT

1. Control (Inner or F-PCB) buttons

2. Door Switch

3. Initial Power Input

CONTENTS REMARKS

1. Buzzer sounds if any button of Inner Control is pushed.

2. Buzzer sounds 4 times 3 seconds after initial power input.

3. Buzzer sounds for 3 or 1 times in case of A/S forced defrosting and short (pull down) operation or explanation mode.

4. If door is open, buzzer sounds after every 1 minutes for 5 minutes (Door open alarm)

Louver Heater

Buzzer

4-7. Control of Interior Lights (FRS(N)-U20DA)

INPUT CONTROL OBJECT

1. Refrigerator door switch

2. Freezer door switch

3. Home bar door switch

4. Dispenser switch

CONTENTS REMARKS

1. Control refrigerator compartment lights R-Lights turn ON/OFF by R-door switch ON/OFF

(※ For 10 minutes after sensing door open, the lights turn off automatically

through door close is not sensed.)

2. Control of freezer compartment lights. F-Light turn ON/OFF by F-door switch ON/OFF

(※ For 10 minutes after sensing door open, the lights turn off automatically

through door close is not sensed.)

3. R-lights ON/OFF by home bar door switch ON/OFF. ( for only model with home bar ) R-lights turn ON for 10 minutes after sensing home bar door switchopen.

4. Dispenser lamp control ( for only model with water/ice dispenser ) Dispenser lamp turns ON/OFF by Dispenser switch. Dispenser lamp turns ON for 4 seconds after sensing switch close.

Lamp

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4-8. Demonstration

4-8-1. Basic Model

INPUT CONTROL OBJECT

1. FRZ. TEMP

2. Door Switch

CONTENTS REMARKS

1. Start Open and close “Freezer door switch” 5 times while pushing “FRZ. TEMP” button simultaneously.

2. Control

1) All other electrical components are OFF except for F-fan / R-fan

2) Fan Control Door open → Fan ON / Door close → Fan OFF.

3) Display control

“FRZ. LED” and “REF. LED” are ON in good order

3. Stop

1) During Demo mode, push “Freezer door switch” open and close 5 times while pushing “FRZ. TEMP” button simultaneously.

2) Power in again

4-8-2. Dispenser Model

INPUT CONTROL OBJECT

1. “FREEZER SET, WATER/ICE” Button , Door switch

CONTENTS REMARKS

Comp F/R-Fan Heater

1. Start Push “ICE/WATER”button 5 times while pushing “FREEZER SET” button simultaneously.

2. Control

1) All other electrical components are OFF except for F-fan / R-fan

2) Fan Control Door OPEN → Fan ON / Door close → Fan OFF.

3. Stop or termination

1) During Demo mode, push “ICE/WATER” button 5 times while pushing “FREEZER

SET” button simultaneously.

2) Power in again

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4-9. Compensation of R-sensor ON/OFF Point

INPUT CONTROL OBJECT

Main PCB

CONTENTS REMARKS

Compensation of R-sensor ON/OFF temp. (down) In case temperature of refrigerator compartment is weak or insufficient,

take the following action.

FRS(N)-U20IA FRS(N)-U20DA

R-SENSOR

R36

R37

R38

R36

R37

R38

Resistance of R-sensor Mid ON/OFF Point

R-SENSOR

J19

J18

※ Refer to the 5-2.

(Function of each sensor)

J18,19

R36 : R-SENSOR standard resistance in normal mode (31.4K) R37 : In case of weak ref., cut J1 (or J18) to down the standard resistance by 1.5deg(2K) R38 : In case of weak ref., cut J2 (or J19) to down the standard resistance by 1.5deg(2K)

FRS(N)

-U20IA

FRS(N)

-U20DA

Temperature

compensation

Temperature

compensation

℃

-1.5

℃

cutcut-J1 cut--J2

℃

cutcut-J18 cut--J19

℃

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4-10. Error Display

4-10-1. Basic Model (LED Display of Inner Control)

INPUT CONTROL OBJECT

Temperature Control Buttons Lamp LED of Inner control

CONTENTS REMARKS

1. How to start

1) Press “FRZ.TEMP”button 5 times while pressing “REF.TEMP” button at the same time.

2. How to stop

1) Push “FRZ.TEMP” button 1 time.

2) It stops automatically in 4 minutes from the start.

3. All the error codes are reset if they turn to be normal.

4. Error display

DisplayCONTENTS FRZ. LED “5” is on and off F-sensor : open (“Lo”), short (“Hi”) FRZ. LED “4” is on and offR-sensor : open (“Lo”), short (“Hi”) FRZ. LED “3” is on and offRT-sensor : open (“Lo”), short (“Hi”) FRZ. LED “2” is on and offD-sensor : open (“Lo”), short (“Hi”) FRZ. LED “1” is on and offR-Door Switch : defective REF. LED “5” is on and offF-Door Switch : defective REF. LED “3” is on and offCycle : defective REF. LED “2” is on and offReturn after defrosting : defective REF. LED “1” is on and offEEPROM : defective REF. LED “1” is onFull Down mode REF. LED “1” is on and off (twice)Forced defrost mode for A/S

(Full down mode and forced defrost mode are displayed while pressing “REF.TEMP” b u tt o n a t t h e err or displa y mod e)

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CONTENTS REMARKS

5. Control way of Errors (if any)

1) “F-sensor” error Cause : F-sensor open or short Control : Condition of ambient temperature How to reset : If F-sensor is normal, the error is terminal temperature.

2) “R-sensor” error Cause : R-sensor open or short Control : Condition of ambient temperature How to reset : If R-sensor is normal, the error is terminal temperature.

3) “RT-sensor” error Cause : RT-sensor open or short (full down) Control : Normal operation, deletion of control by RT-sensor

If RT-sensor is normal, the error is terminated automatically.

Over 41℃~ 41℃~ 31℃~ 21℃~ 15℃~ 9℃RT-S

35 / 2035 / 2026 / 2227 / 4516 / 4114 / 50ON/OFF (min)

Over 41℃~ 41℃~ 31℃~ 21℃~ 15℃~ 9℃RT-S

6 / 44 / 63 / 72 / 103 / 50OFFON/OFF (min)

4) “D-sensor” error Cause : D-sensor open or short (full down) Control : Time limit (30 min) of defrosting return

5) “Door” error Cause : in case it senses that door is open for more than 1hour. Control : Deletion of function related door switch sensing

6) “Cycle” error Cause : in case comp. works for over 3 hours when D-sensor temp. is over -5℃ Control : normal operation

7) “Return after defrosting” error Cause : in case defrosting return is done by time limit of 80 min Control : Deletion of Pre-cool mode in defrosting mode

8) A/S forced defrosting mode Push “REFRIGERATOR SET” button 5 times while pushing “FREEZER SET” bu t t o n Simultaneously. Control : A/S forced defrosting control (Pre-cool is deleted) If D-sensor temp. is over 10℃, the mode is terminated automatically. When all error code is normal, the Refrigerator reset

If D-sensor is normal, the error is terminated automatically.

If door switch (open & close) is sensed, the error is terminated automatically.

When D-sensor temp. is below -5℃ in comp. off it is terminated.

If defrosting return is done by D-sensor, it is terminated.

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4-10-2. Dispenser Model (CLED Display of Front PCB)

INPUT CONTROL OBJECT

Temperature Control Buttons 88 Display CLED

CONTENTS REMARKS

1. How to start

1) Under “LOCK” mode, press “SUPER FREEZER” button 5 times while pressing “FREEZER SET” button at the same time.

2) The front CLED displays as the right diagram shows ( [Ex.] Time Display of 0003 signifies 3 minutes of power on time.)

3) Press “FREEZER SET” button and the following value is displayed successively.

① Time ② F-Sensor temperature ③ D-Sensor temperature ④ R-Sensor temperature ⑤ RT-Sensor temperature ⑥ P Factor display (Refer to water supply mode of automatic icemaker) ⑦ Filter remaining time until change (First check ; 4,320Hr)

Refer to Filter Information Reset of CLED of front control panel.

4) Error is displayed only if there is any ; it is skipped if no error.

2. How to stop

1) Push “LOCK”button 1 time.

2) It stops automatically in 4 minutes from the start.

3. All the error Codes are reset if they turn to be normal.

4. Error code

CONTENTSERROR CODE F-sensor : disconnection (“Lo”), short (“Hi”)F1 R-sensor : disconnection (“Lo”), short (“Hi”)r1 RT-sensor : disconnection (“Lo”), short (“Hi”)rt D-sensor : disconnection (“Lo”), short (“Hi”)d1 R-Door Switch : defectivedr F-Door Switch : defectivedF Home bar Door Switch : defectivedH I-sensor : disconnection (“Lo”), short (“Hi”)EI Flow sensor : defectiveEF Horizontal switch : errorEt Water supply : errorEg Micro switch : errorES Drop the ice while EtEA Full ice switch : errorEu Cycle : abnormal or defectiveC1 Return after defrosting : abnormal or defectiveF3 Display Full Down modeCo Display forced defrost mode for A/SD2

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CONTENTS REMARKS

5. Control way of Error (if any)

1) “F1” error Cause : F-sensor disconnection or shor t

Check point : Measure the resistance between both terminals after separating CN8 (or CN15)

If F-sensor is disconnected or shorted , change the F-sensor in the freezer compartment.

How to reset : If F-sensor is normal, the error is terminal temperature.

2) “R1” error

Cause : R-sensor disconnection or short Check point : Measure the resistance between both terminals after separating CN7 (or CN14)

If R-sensor is disconnected or shorted , change the F-sensor in the refrigerator compartment. How to reset : If R-sensor is normal, the error is terminal temperature.

3) “rt” error

Cause : RT-sensor disconnection or short (full down) Check point : Measure the voltage of “A”part on the Main PCB.

If the voltage is 0.5V~4.5V, it is normal. If the voltage is 0V (short) or 5V (disconnected), change the RT-sensor on the Main PCB

How to reset : If RT-sensor is normal, the error is terminated automatically.

of the Main PCB. (Refer to the 5-2.)

< Basic Model >

4) “d1” error

Cause : D-sensor disconnection or short (full down) Check point : Measure the resistance between both terminals after separating CN8 (or CN15)

of the Main PCB. (Refer to the 5-2.)

If D-sensor is disconnected or shorted , change the D-sensor on the evaporator.

How to reset : If D-sensor is normal, the error is terminated automatically.

5) Door error (“dF” “dR” “dH” on display)

Cause : in case it senses that door is open for more than 1 hour. Check point : F/R door is opened or not.

6) “C1” error

Cause : in case comp. works for over 3 hours when D-sensor temp. is over -5℃ Check point : Refrigerant leakage.

7) “F3” error

Cause : in case defrosting return is done by time limit of 80 min Check point : Measure the resistance between both terminals of the defrost heater.

(Assembled with evapora t or)

If the resistance is ∞Ω (disconnected) or 0Ω (short) change the

< Dispenser Model >

8) “d2” mode (A/S forced defrosting mode)

Push “REFRIGERATOR SET”button 5 times while pushing “FREEZER SET” button

simultaneously. Control : A/S forced defrosting control (Pre-cool is deleted) If D-sensor temp. is over 10℃, the mode is terminated automatically. Refer to the 4-3. .

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CONTENTS REMARKS

9) “EI”ERROR Cause : I-SENSOR disconnection / short

Check point : Measure the resistance between both terminals after separating CN11

If F-sensor is disconnected or shorted , change the I-sensor in the automatic ice maker.

10) “EF” ERROR Cause : When Flow-sensor ERROR (There is no Pulse during some time)

Check point : Water supply line

11) “Eg” ERROR Cause : I-sensor temp (5min after water supply) doesn’t go up. Check the I-sensor or water supply line.

12) “ES” error (MICRO switch error) Cause : When it senses 1min continuously Check the MICRO switch of the dispenser.

13) “Ea” error Cause : Malfunction of ice drop motor. Check the motor by pushing test switch.

of the Main PCB. (Refer to the 5-2.)

The number of pulse signal is below 10 by 1 sec during water supply.

14) “Eu” error Cause : Switch (which senses if the ice is full or not) is in error. Control : When dropping the ice, the motor just rotates 90 degree. Termination : When the switch is in normal.

15)“EA“ ERROR Cause : When sensing Ice dropping by time 3 times in level sensor SW Error. Control : Stop of Ice Maker Termination : With normal level switch. Re-input of power or push if icemaker test switch.

16)“Et” ERROR Cause : Level switch error (No pulse is sensed for some time) Control : By time (Supply mode is skipped) Termination : Normal condition.

* When all ERROR CODE is normal, the Refrigerator reset

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4-11. Summary of Function

4-11-1. Basic Model (Inner Control)

INPUT CONTROL OBJECT

Each button

Element A/S Function

“REF.TEMP”+ “FRZ.DOOR” OPEN/CLOSE 5 timesPull Down “FRZ.TEMP”+ “FRZ.DOOR” OPEN/CLOSE 5 timesDemo function

4-11-2. Dispenser Model (Front PCB)

INPUT CONTROL OBJECT

Each button

Resistance of R-sensor Mid ON/OFF Point

CONTENTS REMARKS

“FRZ.TEMP” + “REF.TEMP” 5 timesForced Defrosting

“REF.TEMP”+ “FRZ.TEMP” 5 timesError display

Resistance of R-sensor Mid ON/OFF Point

CONTENTS REMARKS

1. All the modes are started “LOCK”mode (except “FILTER RESET”mode)

2. Element A/S Function

“FREEZER SET” + “REFRIGERATOR SET” 5 timesForced Defrosting

Push “RESET WATER FILTER” for 3 secondsReset water filter

“REFRIGERATOR SET” + “WATER/ICE” 5 timesDemo function

“REFRIGERATOR SET”+ “FREEZER SET”+ “WATER/ICE”5 timesPull Down

“FREEZER SET”+ “SUPER FREEZER” 5 timesError display

“WATER/ICE”+ “RESET WATER FILTER” 5timesEEPROM clear

“WATER/ICE” + “ICE MAKER LOCK” 5 timesIce maker test

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4-12. Back up Function (Basic Model)

INPUT CONTROL OBJECT

None

CONTENTS REMARKS

1. Filter Exchange Information : Record as a real-time from the point of power input

2. P Factor (Information about Ice Maker)

4-13. Automatic Icemaker ( Dispenser Model)

INPUT CONTROL OBJECT

Full ice sensing switch Ice Maker Lock Sensors

CONTENTS REMARKS

1. Flow of ice making

START

Ice making mode

Ice is being made

▶

1. F-FAN, R-FAN, C-FAN

Ice separating motor

(water supply stand by)

Ice separating mode

Water supply mode

Ice tray is twisted to separate

▶

Water is supplied to ice tray

▶

ice cubes

Water supply

Check is water is supplied OK.

check mode

▶

RETURN

1) Press TEST switch under the Icemaker for more than 1 second and test starts. * Test mode starts from ice separating mode. * In case test switch has an error of short, test is done only once.

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CONTENTS REMARKS

2) With the initial power input, Ice tray turns to be horizontal and ice making mode starts.

3) Control of water hose heater * Heater is always ON if RT-sensor has an error or RT is below 15 degree. * Heater is always ON for 60 minutes (max. Limit time) if Flow-sensor has

an error

4) Water supply stand-by

Condition : if ice is sensed full Operation : proceeds to Ice making mode (Ice separating and water supply Modes stop)

5) Crusher Function

It stops operation when freezer door is open It operates if freezer door is closed.

2 Ice making mode

START

130 min passed?

I-S＜－12.5℃

Ice saparating mode

YES

I-S＜-9.5℃

YES

15 min passed?

YES

1) Ice making stops if ice-sensor is below -12.5℃ after 130 minutes.

2) Ice making also stops if ice-sensor is below -9.5℃ for 15 minutes, though ice-sensor is not below -12.5℃ after 130 minutes.

3) In case of ice sensor, ice making stops after 4.8 hours.

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