Daewoo frs20 User Manual

S/M No: RNU20IB001

Refrigerator

	FRN-U20DB*	FRN-U20FB*
FRN-U20IB*	FRN-U20EB*	FRN-U20GB*
FRS-U20IB*	FRS-U20DB*	FRS-U20FB*
	FRS-U20EB*	FRS-U20GB*
FRU-577I~	FRU-547D/E~	FRU-547F/G~

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

1

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.

2

2. EXTERNAL VIEWS

2-1. External Size

- FRS(N)-U20IB

3

- FRS(N)-U20DB / EB

4

- FRS(N)-U20FB / GB

5

2-2. Name of Each Parts

- Basic Model

1

2

3

4

5

6

7 8

9 10 11

12

				- Wine Rack is option
	Freezer Compartment			Refrigerator Compartment
1.	Freezer light	6.	Dairy pocket
2.	Freezer pocket	7.	Refrigerator light
3.	Ice tray	8.	Chilled case
4.	Freezer shelf	9.	Movable Egg case
5.	Freezer case	10.		Refrigerator shelf
		11.		Refrigerator pocket
		12.		Refrigerator case

6

- Full option Model

1

2

3

4

5

6

7

8 9

10 11 12

13

-Full option Model illustrated. -Features are model dependent.

	Freezer Compartment			Refrigerator Compartment
1.	Ice cubes storage case	7.	Dairy pocket
2.	Freezer light	8.	Refrigerator light
3.	Water/Ice Dispenser	9.	Wine Rack
4.	Freezer shelf	10.		Movable Egg case
5.	Freezer pocket	11.		Refrigerator shelf
6.	Freezer case	12.		Refrigerator pocket
		13.		Magic room (option)

7

2-3. Cold Air Circulation

Freezer		Refrigerator
Compartment		Compartment

8

3. SPECIFICATION

3-1. Specification

			Item					Specification
		Model Name		FRS(N)-	FRS(N)-			FRS(N)-	FRS(N)-		FRS(N)-
				U20IB	U20DB			U20EB		U20FB	U20GB
ISO Gross			Total	570 Li	541 Li			525 Li		541Li	536 Li
Volume			Freezer	209 Li	184 Li			178 Li		184 Li	184 Li
	(Li)
			Refrigerator	361 Li	357 Li			337 Li		357 Li	352 Li
ISO Storage			Total	537 Li	504 Li			504 Li		504 Li	500 Li
Volume			Freezer	198 Li	170 Li			170 Li		170 Li	170 Li
	(Li)
			Refrigerator	339 Li	334 Li			334 Li		334 Li	330 Li
			Weight	104kg	113kg			115kg		115kg	117kg
	External Dimension				903 mm x 734.5mm x 1790 mm
	(Width x Depth x Height)
C			Evaporator					Fin Type
Y			Condenser				Fan Cooling System
C
L			Dryer				Molecular Sieve XH-9
E
		Capillary Tube				IDΦ0.7 × T0.55 × L2200
			Description	HPL30YG-5				MK183Q-L2U		MK4A5Q-R1U
Compressor			Part Code	395S130R50				3956183D50		3956145250
			Refrigerant ( g )	R-134a (190g)			R-134a (190g)			R-600a (76g)
SWITCH			Description	308NHB, S330				265RHB, S330
P RELAY AS			Part Code	3018129810			3011402100

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

9

		Item	Specification ( 220~240V Models only )
		Model Name	Basic Model			Dispenser Model
	D	D-Sensor	PBN-43
	E
	F
	O	F-Sensor	PBN-38
	R
	E
	S	R-Sensor	PBN-43
	T
		Defrost Heater	AC220V / 192W
	H	Main Duct Heater	AC220V / 7W
	E
	A	Louver Heater	AC220V / 8W
	T
	E
	R	Dispenser Heater	-			AC220V / 5W
		Water Pipe Heater	-			AC220V / 5W
		Main Fuse (Power cord)	AC250V 15A
	E
		Fuse Temp (Defrost)	AC250V , 10A , 77
	L
	E
	C	F-Fan Motor	DC13V / 2050±100 rpm
	T
	R
			±
	I	R-Fan Motor				100 rpm
	C		DC13V / 1950
	A	Condenser	DC13V / 1100±100 rpm
	L
		Fan Motor
	P
		F-Lamp	AC230~240V / 25W (2EA)
	A
	R
	T	R-Lamp	AC230~240V / 25W (2EA)
	S
		Door Switch , F / R	SP201R-7DL / SP201R-7DR
			(SPF101B-2D / SPF101B-1D)

10

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
		Temperature adjustment button
		for freezer compartment.
		Temperature adjustment button
		for refrigerator compartment.

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 Chang	Min	Medium	Mid	Medium	Max
			Min		Max
	Temp indication	1	2	3	4	5

2.“REF.TEMP” button.

1)Temperature control of Refrigerator 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 Change	Min	Medium	Mid	Medium	Max
			Min		Max
	Temp indication	1	2	3	4	5

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.

11

4-1-2. Dispenser Model

INPUT	CONTROL OBJECT
Front PCB button
FREEZER SET, REFRIGERATOR SET	FCP C-LED
SUPER FREEZER, SUPER REFRIGERATOR
RESET FILTER, WATER / ICE, ICE MAKER LOCK
,LOCK
CONTENTS		REMARKS

Water filter reset

Dispenser select button

Ice maker lock button

Lock button

Super freezer

Super Refrigerator

Temperature adjustment button

Temperature adjustment button

for freezer compartment.

for refrigerator compartment.

1. Display control

FCP-LED

Control

88 DISPLAY (SET TEMP.)

Initial mode : Freezer & Refrigerator set→

Medium (-19 /4 )

SUPER FREEZER,SUPER

Dial

REFRIGERATOR ICON

FUZZY, DEODORIZER ICON

Always ON

WATER / CUBED ICE/ CRUSHED ICE ICON

Dial

LOCK ICON

Dial

ICE MAKER LOCK ICON

Dial

FILTER CHANGE ICON

After six month, LED ON

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	Min	Medium	Medium	Medium	Medium	Medium	Max
	Change		Min 1	Min 2		Max 1	Max 2
	Temp	-16	-17	-18	-19	-20	-21	-22
	indication

3.“SUPER FREEZER” Button

When this mode is chosen, the icon (FREEZER QUICK) is ON.

12

	CONTENTS	REMARKS

4.“REFRIGERATOR SET” button.

1)Temperature control of Refrigerator 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

	Temperature Change	Min		Medium		Mid	Medium	Max
					Min		Max
	Temp indication	6			5	4	3	2
5. “SUPER REFRIGERATOR” button.
When this mode is chosen, the icon (REFRIGERATOR QUICK) is ON.
6. “WATER / ICE” button									REFERENCE : Please wait
1) Select Water / Cubed Ice / Crushed Ice.									for 2-3 seconds in order
									to take final ice or drops
2) Icon lights up to show your selection is on.
									of water when taking out
	Initial mode by power input : “Water” mode.
									cup from the pressing
3) The mode of Cubed Ice or Crushed Ice continues for 1 hour and then changes									switches after taking ice
	to Water. (Water icon turns ON)								or water.

7.“ICE MAKER LOCK” button

1)Start by pushing “ICE MAKER LOCK” button

“ICE MAKER LOCK” icon is on

“WATER” icon is always on

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

“ICE MAKER LOCK” icon is off

“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

Push the “RESET WATER FILTER” button for 3 seconds after change.

9.“LOCK” button

1)This button stops operation of different button.

“LOCK” icon is on

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.

13

4-2. Defrost Mode

INPUT		CONTROL OBJECT
		1. Comp
1. Defrosting Cycle		2.	F-Fan
		3.	R-Fan
		4.	D-Heater
	CONTENTS		REMARKS
1. Defrost Mode

Pre-Cool	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	Heater
	Defrosting
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 D1Error
	80 minutes : in normal control state
	3) If D-sensor ≥13 , Heater Defrosting is OFF

	Pause	Pause
		Time : 7 minutes
		Comp, F-fan, R-fan, Heater etc. : OFF
		Fan-Delay
	Fan-Delay
		1) Time : 5 minutes
		Comp : ON and F-fan, R-fan, Heater : OFF

2.The defrost mode start with the following conditions

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

Comp. operating rate : more 85%

Total door open time : 2 minutes

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

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 .

14

	CONTENTS	REMARKS

4. Flow Chart of Defrosting Start

		Start
		Comp. operating time	NO
		is over 2 hours?
		YES
YES		Total time is
		over 60 hours?
		NO
YES		Comp. operating time
		is over 24 hours?
		NO
		Comp. operating time	NO
		is over 6 hours?
		YES
YES		Comp. operating rate
		is more 85%?
		NO
YES		Any error ?
		NO
YES		Total door open
		time is over 2 min?
		NO
Defrosting start		End

15

4-3. (Forced Defrosting) Mode

	INPUT	CONTROL OBJECT
		1. Comp
	1. Defrosting Cycle	2.	F-Fan
		3.	R-Fan
		4.	D-Heater
	CONTENTS		REMARKS

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

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

Fan-Delay

Fan-Delay 1) Time : 5 minutes

Comp : ON

F-fan, R-fan, Heater : OFF

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)

4-4. Fan Voltage of Control Mode

			INPUT				CONTROL OBJECT
1.		F-Sensor					1. F-FAN, R-FAN, C-FAN
2.		R-Sensor
				CONTENTS					REMARKS
1. Fan voltage of control mode
	FAN		F-FAN		R-FAN		C-FAN
	Voltage		13 V		13 V		13 V
Refer to the 5-4. (Fan Function )

16

4-5. Louver Heater Control

INPUT	CONTROL OBJECT
1. Comp	Louver Heater
CONTENTS	REMARKS

It is linked with comp.

4-6. Buzzer or Alarm Control

		INPUT		CONTROL OBJECT
	1.	Control (Inner or F-PCB) buttons		Buzzer
	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)

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

		INPUT	CONTROL OBJECT
	1.	Refrigerator door switch	Lamp
	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 switch open.
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.

17

4-8. Demonstration

4-8-1. Basic Model

	INPUT	CONTROL OBJECT
	1. FRZ. TEMP	Comp
		F/R-Fan
	2. Door Switch
		Heater
	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	Comp
		F/R-Fan
		Heater
	CONTENTS	REMARKS

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

18

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

INPUT	CONTROL OBJECT
Main PCB	Resistance of R-sensor Mid ON/OFF Point
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			R-SENSOR	Refer to the 5-2.
					(Function of each sensor)
R36			R36
R37			R37
R38	J2	J1	R38	J19	J18

J1

J18,19

J2

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)	J1	-	cut	cut
	J2	-	-	cut
-U20IA	Temperature	0	-1.5	3
	compensation
FRS(N)	J18	-	cut	cut
	J19	-	-	cut
-U20DA	Temperature	0	-1.5	3
	compensation

19

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

CONTENTS	Display
F-sensor : open (“Lo”), short (“Hi”)	FRZ. LED “5” is on and off
R-sensor : open (“Lo”), short (“Hi”)	FRZ. LED “4” is on and off
RT-sensor : open (“Lo”), short (“Hi”)	FRZ. LED “3” is on and off
D-sensor : open (“Lo”), short (“Hi”)	FRZ. LED “2” is on and off
R-Door Switch : defective	FRZ. LED “1” is on and off
F-Door Switch : defective	REF. LED “5” is on and off
Cycle : defective	REF. LED “3” is on and off
Return after defrosting : defective	REF. LED “2” is on and off
EEPROM : defective	REF. LED “1” is on and off
Full Down mode	REF. LED “1” is on
Forced defrost mode for A/S	REF. LED “1” is on and off (twice)

(Full down mode and forced defrost mode are displayed while pressing “REF.TEMP” button at the error display mode)

20

	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.

RT-S	~ 9	~ 15	~ 21	~ 31	~ 41	Over 41
ON/OFF (min)	14 / 50	16 / 41	27 / 45	26 / 22	35 / 20	35 / 20

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.

RT-S	~ 9	~ 15	~ 21	~ 31	~ 41	Over 41
ON/OFF (min)	OFF	3 / 50	2 / 10	3 / 7	4 / 6	6 / 4

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.

4) “D-sensor” error

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

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

5) “Door” error

Cause : in case it senses that door is open for more than 1 hour. Control : Deletion of function related door switch sensing

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

6) “Cycle” error

Cause : in case comp. works for over 3 hours when D-sensor temp. is over -5 Control : normal operation

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

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

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

8) 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. When all error code is normal, the Refrigerator reset

21

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.

Time

F-Sensor temperatureD-Sensor temperatureR-Sensor temperatureRT-Sensor temperature

P Factor display (Refer to water supply mode of automatic icemaker)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

ERROR CODE	CONTENTS
F1	F-sensor : disconnection (“Lo”), short (“Hi”)
r1	R-sensor : disconnection (“Lo”), short (“Hi”)
rt	RT-sensor : disconnection (“Lo”), short (“Hi”)
d1	D-sensor : disconnection (“Lo”), short (“Hi”)
dr	R-Door Switch : defective
dF	F-Door Switch : defective
dH	Home bar Door Switch : defective
EI	I-sensor : disconnection (“Lo”), short (“Hi”)
EF	Flow sensor : defective
Et	Horizontal switch : error
Eg	Water supply : error
ES	Micro switch : error
EA	Drop the ice while Et
Eu	Full ice switch : error
C1	Cycle : abnormal or defective
F3	Return after defrosting : abnormal or defective
Co	Display Full Down mode
D2	Display forced defrost mode for A/S

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	CONTENTS	REMARKS

5.Control way of Error (if any)

1)“F1” error

Cause : F-sensor disconnection or short

Check point : Measure the resistance between both terminals after separating CN8 (or CN15) of the Main PCB. (Refer to the 5-2.)

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

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.

A		A
< Basic Model >		< Dispenser 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 evaporator)

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

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

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

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.

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			Resistance of R-sensor Mid ON/OFF Point
			CONTENTS				REMARKS
Element A/S Function
	Forced Defrosting		“FRZ.TEMP” + “REF.TEMP” 5 times
	Pull Down		“REF.TEMP”+ “FRZ.DOOR” OPEN/CLOSE 5 times
	Demo function		“FRZ.TEMP”+ “FRZ.DOOR” OPEN/CLOSE 5 times
	Error display		“REF.TEMP”+ “FRZ.TEMP” 5 times

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

		INPUT			CONTROL OBJECT
	Each button				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
	Forced Defrosting			“FREEZER SET” + “REFRIGERATOR SET” 5 times
	Reset water filter			Push “RESET WATER FILTER” for 3 seconds
	Demo function			“REFRIGERATOR SET” + “WATER/ICE” 5 times
	Pull Down		“REFRIGERATOR SET”+ “FREEZER SET”+ “WATER/ICE”5 times
	Error display			“FREEZER SET”+ “SUPER FREEZER” 5 times
	EEPROM clear			“WATER/ICE”+ “RESET WATER FILTER” 5times
	Ice maker test			“WATER/ICE” + “ICE MAKER LOCK” 5 times

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4-12. Back up Function (Basic Model)

	INPUT		CONTROL OBJECT
	None		1. F-FAN, R-FAN, C-FAN
	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			Ice separating motor
		Sensors
			CONTENTS		REMARKS
1. Flow of ice making
		START
		Ice making mode	Ice is being made
		(water supply stand by)
		Ice separating mode	Ice tray is twisted to separate
			ice cubes
		Water supply mode	Water is supplied to ice tray
		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

NO	I-S -9.5	NO
130 min passed?
YES	YES
NO	15 min passed?	NO
I-S 12.5
YES	YES
Ice saparating mode

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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