Turbo Air TSF-23SD Service Manual

Commercial

Refrigerator & Freezer

Service Manual

Solid Door
Model No.: TSR-23SD

TSR-49SD
TSR-72SD
TSF-23SD
TSF-49SD
TSF-72SD

Commercial

Refrigerator & Freezer

Service Manual

Solid Door
Model No.: TSR-23SD

TSR-49SD
TSR-72SD
TSF-23SD
TSF-49SD
TSF-72SD

1

TABLE OF CONTENTS

1. FEA TURE CHART

1-1. FRONT VIEW
1-2. SIDE VIEW

2. WIRING DIAGRAM

2-1. REFRIGERATOR (1DOOR) : TSR-23SD
2-2. FREEZER (1DOOR) : TSF-23SD
2-3. REFRIGERATOR (2DOOR) : TSR-49SD
2-4. FREEZER (2DOOR) : TSF-49SD
2-5. REFRIGERATOR (3DOOR) : TSR-72SD
2-6. FREEZER (3DOOR) : TSF-72SD

3. P ART DETAILS

3-1. TOP GRILLE
3-2. REFRIGERATION COMPARTMENT
3-3. ELECTRICAL BOX
3-4. DOOR
3-5. COOLING COMPARTMENT

4. MAIN COMPONENTS

4-1. COMPRESSOR
4-2. COMPRESSOR RELAY
4-3. CONDENSER DRYER
4-4. CAPACITOR
4-5. EVA FAN MOTOR
4-6. CONDENSOR FAN MOTOR
4-7. EVA DEFROST HEATER
4-8. LAMP
4-9. PCB TRANSFORMER
4-10. MAIN PCB

5. ELECTRONIC CONTROLLER INSTRUCTION

5-1. FREEZER CONTROLLER

5-1-1. HOW TO USE THE PANEL
5-1-2. FUNCTION TABLE
5-1-3. ERROR CODE TABLE

5-2. REFRIGERATOR CONTROLLER

5-2-1. HOW TO USE THE PANEL
5-2-2. FUNCTION TABLE
5-2-3. ERROR CODE TABLE

6. SP ARE PARTS LIST

7. REPLACEMENT OF MAIN COMPONENTS

7-1. TOP GRILLE PARTS
7-2. REPLACING DOOR
7-3. REFRIGERATION COMPARTMENT’S PARTS
7-4. CONDENSING UNIT
7-5. REPLACING CABINET FRAME HEATER (AND/OR) MULLION HEATER

1-1. FRONT VIEW

2

1. FEATURE CHART

1 TOP GRILLE PANEL
2 TOP GRILLE
3 TOP GRILLE FIXTURE
4 DOOR SWITCH
5 DOOR LOCK
6 MAIN PCB
7 TRANSFORMER
8 DISPLAY PCB
9

CONTROL BOARD HOUSING

10 BRAND LOGO
11

DOOR HINGE TOP ASSEMBLY

12 DOOR HINGE SPRING
13 DOOR ASSEMBLY
14 DOOR HANDLE
15

DOOR HINGE BOTTOM ASSEMBLY

16

BOTTOM GRILLE ASSEMBLY

17 CASTER
18 DRAIN PAN
19 SUCTION PIPE
20 CAPILLARY TUBE
21 ELECTRICAL BOX
22 COMPRESSOR
23

CONDENSER FAN MOTOR

24 CONDENSER COIL
25 GRILLE FIXTURE
26

MULLION (CENTER POST)

27 MULLION HEATER
28 FRAME HEATER
29 FRAME COVER

1

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FEA TURE CHAR T

1-2. SIDE VIEW

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29 DOOR BUMPER
30 DOOR GASKET
31 LAMP BULB
32 LAMP SOCKET
33 EVAPORATOR FAN

MOTOR BLADE

34

EVAPORATOR FAN MOTOR

35 EVAPORATOR COIL
36 SUCTION PIPE
37

EVAPORATOR DRAIN PAN

38 EVAPORATOR DRAIN

ELBOW

39 DRAIN HOSE
40 SHELF STANDARD
41 LAMP SHIELD
42 EVAPORATOR FAN

MOTOR GUARD

43 DUCT (A) ‘FRONT’
44 DUCT (B) ‘BOTTOM’
45 SHELF

2. WIRING DIAGRAM

4

WIRING DIAGRAM

2-1. TSR-23SD

WIRING DIAGRAM

2-2. TSF-23SD

5

WIRING DIAGRAM

WIRING DIAGRAM

2-4. TSF-49SD

WIRING DIAGRAM

2-3. TSR-49SD

6

WIRING DIAGRAM

WIRING DIAGRAM

2-6. TSF-72SD

WIRING DIAGRAM

2-5. TSR-72SD

7

3. PART DETAILS

3-1. TOP GRILLE

Door Lock, Switch

3-2. Refrigeration Compartment

Cycle Assembly

Transformer, Main P.C.B

Transformer

Harness

Door Lock

Door Switch

Main PCB

Suction Pipe

Compressor

Condenser Fan Motor Assembly

Condenser Coil Shroud
Condenser Coil

Condenser Pipe

Condenser Dryer

8

P AR T DETAILS

Drain Pan Assembly

Condenser Fan Motor Assembly

3-3. Electrical Box

Drain Wicking Bar

Drain Pan

Condenser
Fan Motor

Bracket

Condenser Fan
Motor Blade

Power Relay (Comp. Relay)

Power Bushing

Drain Wicking Pads

9

P AR T DETAILS

3-4. Door

Gasket

3-5. Cooling Compartment

Freezer Duct & Refrigerator Duct (TSR-49SD, TSF-49SD, TSR-72SD, TSF-72SD Type)

Freezer Evaporator, Fan (TSF-49SD, TSF-72SD)

Gasket

Evaporator Fan
Motor Guard

Duct (A)

Duct (B)

Evaporator Fan Motor Blade

Heater Connectors &
Sensor Connectors

Evaporator Thermal Fuse

EvaporatorLamp Connector

10

P AR T DETAILS

Freezer Duct & Refrigerator Duct (TSR-23SD, TSF-23SD Type)

Freezer Evaporator, Fan (TSF-23SD)

Lamp & Fan Motor Connectors

Evaporator Fan
Motor Blade

Evaporator
Thermal

Evaporator

Evaporator Coil Heater

F-Sensor

Heater Connectors &
Sensor Connectors

Evaporator Fan
Motor Guard

Duct (A)
Duct (B)

11

4. MAIN COMPONENTS

4-1. COMPRESSOR

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Refrigerant R-134a R-404a R-134a R-404a
Voltage 115V / 60Hz 208/230
Comp. Model HBL27YE-1 SK6A1C-H2Y AEA2411ZXA AJA2425ZXA AKA4476YXA CAJ2446Z
Part code 3952127G10 3020014540 30200L0100 30200L0200 30200A4700 30206Q3600
Strating type CSR RSIR CSIR CSIR CSIR CSR

4-4. CAPACITOR

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Voltage 115V / 60Hz 220V/60Hz
Running 230V/10uF x x 370V/15uF x 440V/15µF
Part code 400EL15130 Comp.Assembly
Starting 200V/100uF x

165V/270~324uF 330V/161~193uF

378~445MFD 260V/88µF

Part code 401RD35050 Comp.Assembly

4-3. CONDENSER DRYER

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Refrigerant R-134a R-404a R-134a R-404a
Spec. XH-9(50g)
Part code 30268L0300 30268L0400 30268Q0100 30268Q0210

4-2. COMPRESSOR RELAY

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Voltage 115V / 60Hz 220V/60Hz
Relay Model 783RHBZZ-52 4TM811XHB-53 8300MRTL13 8300CRAN04 8300MRAM53 3ARR3-3A3A

12

MAIN COMPONENTS

4-5. EVA FAN MOTOR

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Voltage 115V / 60Hz
Motor Model IS4420DWSN-2A
Part code 3963328120

4-6. CONDENSOR FAN MOTOR

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Voltage 115V / 60Hz 220V/60Hz
Motor Model IS4420DWSG-1 IS4420DWSQ-1
Part code 3963220410 3963322020

4-8. LAMP BULB

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Voltage 120V / 60Hz
Spec. 25W
Part code 30236L0100

4-9. TRANSFORMER

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Voltage 115V / 60Hz
Spec. DWS-115U
Part code 30284L0100

4-10. MAIN PCB

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Voltage 115V / 60Hz
Part code 30243L0310 30243L0200 30243L0300 30243L0310 30243Q0300
Micom code 1RF1151 1FF1153 2FF1153 1RF1151 3FF1151

4-7. EVA DEFROST HEATER

Model TSR-23SD TSR-49SD TSF-23SD TSF-49SD TSR-72SD TSF-72SD
Voltage 115V / 60Hz
Spec. x 445W 600W x 900W
Part code x 30228L0802 30228L0700 x 30228Q0600

* Last digit of micom code represents micom version.

It may be changed without notice.

21

6. PART-LIST OF SOLID DOOR MODEL

Caster

CASTER 30265L0200 TP5040-22-HDP
CASTER BRAKE 30265L0100 TP5040-22-HDP-TLB

Compressor

COMPRESSOR RUN CAPACITOR 400EL15130 230V/10µF
COMPRESSOR START CAPACITOR 401RD35050 200V/100µF
COMPRESSOR 3952127G10 HBL27YE-1
COMPRESSOR 3020014540 SK6A1C-H2Y
COMPRESSOR 30200L0100 AEA2411ZXA
COMPRESSOR 30200L0200 AJA2425ZXA
COMPRESSOR 30200A4700 AKA4476YXA
COMPRESSOR 30206Q3600 CAJ2446Z
COMPRESSOR POWER CORD (RELAY HARNESS)

30200L3400 INCLUDED PTC, OL

COMPRESSOR POWER CORD (RELAY HARNESS)

30227Q1400

COMPRESSOR POWER CORD (RELAY HARNESS)

30227L0502

COMPRESSOR POWER CORD (RELAY HARNESS)

30227L0602

COMPRESSOR POWER CORD (RELAY HARNESS)

30227L2800

POWER RELAY (COMP. RELAY) 8536490000

G7L-1A-TUB(OMRON)
ELECTRICAL BOX HARNESS 30227L1711
ELECTRICAL BOX HARNESS 30227L0802
ELECTRICAL BOX HARNESS 30227Q1100
MAIN POWER CORD 30213A1010 125V, 15A
MAIN POWER CORD 30213Q0201 115V, 30A

Condenser

CONDENSER COIL 30200L4001
CONDENSER COIL 30200L4201
CONDENSER COIL 30200L4101
CONDENSER COIL 30200L4302
CONDENSER COIL 30200Q3500
CONDENSER COIL SHROUD 30214L4500
CONDENSER COIL SHROUD 30214L4600
CONDENSER COIL SHROUD 30214Q2800
CAPILLARY TUBE 30244Q0300 C1220T L=950 IDø1.2
CAPILLARY TUBE 30244L1302 C1220T L950 IDø1.2
CAPILLARY TUBE 30244Q0400 C1220T L3378 IDø
CAPILLARY TUBE 30244L1402 C1220T L4425 IDø2.0

222233
222233

1
1
1

1

1

1

1

1

1

1

11

1

1
111111
1

1111

1

11111

1

1

1

1

11

1

11

111

1

1

11

1

1

Part name Code Material Description

Model

R-23S R-49S F-23S F-49S R-72S F-72S

22

P AR T-LIST OF SOLID DOOR MODEL

CAPILLARY TUBE (A) 30244Q1000 C1220T L2263 IDø3.56
CAPILLARY TUBE (B) 30244Q1100 C1220T L3505 IDø2.0
CONDENSER DRYER 30268L0300 C1220T XH-9 50g ø3.1
CONDENSER DRYER 30268L0400 C1220T XH-9 50g ø3.5
CONDENSER DRYER 30268Q0100 C1220T XH-9 50g ø5.0
CONDENSER DRYER 30268Q0210 C1220T XH-9 50g ø5.0

Condenser Fan

CONDENSER FAN MOTOR BLADE 30218B0100 AL ø225
CONDENSER FAN MOTOR BLADE 30218A0100 AL ø250
CONDENSER FAN MOTOR 3963220410 IS-4420DWSG-1
CONDENSER FAN MOTOR 3963322020 IS-4420DWSQ-1

Door

DOOR BUSHING 3007H1000 PA-6
DOOR ASSEMBLY 30200L3100
DOOR ASSEMBLY 30200L2900
DOOR ASSEMBLY(LEFT) 30200L2600
DOOR ASSEMBLY(LEFT) 30200L2400
DOOR ASSEMBLY(MIDDLE) 30200Q2320
DOOR ASSEMBLY(RIGHT) 30200L2700
DOOR ASSEMBLY(RIGHT) 30200L2500
DOOR ASSEMBLY(MIDDLE) 30200Q2330
DOOR GASKET 30223L0211 PVC-S
DOOR HINGE SPRING 30251L0100 ø3.4
CABINET FRAME HEATER 30228L0111 45W
CABINET FRAME HEATER 30228L0203 60W
CABINET FRAME HEATER 30228Q0100 75W L=6700mm
MULLION COVER 30214Q2500 STS430
MULLION HEATER 30228L0903 20W L=2520mm
MULLION HEATER 30228Q0300 25W L=2520mm
DOOR HINGE TOP ASSEMBLY LEFT 30229L0800 SPCC, T3.0 MFZN (WH)
DOOR HINGE TOP ASSEMBLY RIGHT 30229L0900 SPCC, T3.0 MFZN (WH)
DOOR HINGE BOTTOM ASSEMBLY LEFT 30229L0100 SPCC, T5.0 MFZN (WH)
DOOR HINGE BOTTOM ASSEMBLY RIGHT 30229L0200 SPCC, T5.0 MFZN (WH)

Drain

DRAIN PAN 30211L0700 HIPS

11

1

11

11

1

1

11 2

111
11111

2

242433
1

1

11

11

1

11

11

1
121233
121233
11

11

11
1 122
11

11
1 111

111122

1 111

111122

11

Part name Code Material Description

Model

R-23S R-49S F-23S F-49S R-72S F-72S

23

P AR T-LIST OF SOLID DOOR MODEL

DRAIN PAN 30211J0103 HIPS
DRAIN WICKING BAR 30230J0700 PVC-H
DRAIN WICKING BAR 30230L0100 PVC-H
DRAIN WICKING PADS 30245L1000 PULP T2.5
DRAIN WICKING PADS 30245A0700 PULP T2.5

Evaporator

DRAIN CAP 30209L0200 PA-6
EVAPORATOR DRAIN PAN 30211L0501 A1100P-H14 0.8T, WH PAINTING
EVAPORATOR DRAIN PAN 30211L0601 A1100P-H14 0.8T, WH PAINTING
EVAPORATOR DRAIN PAN 30211Q0100 A1100P-H14 0.8T, WHPAINTING
EVAPORATOR COIL 30270L0500
EVAPORATOR COIL 30270L0600
EVAPORATOR COIL 30270L0101
EVAPORATOR COIL 30270Q0200
EVAPORATOR COIL 30270L0202
EVAPORATOR COIL 30270Q0100
THERMO PIPE 30244L2410
EVAPORATOR SENSOR 30227Q1200 F-Sensor, D-Sensor
EVAPORATOR SENSOR 30227Q1300 R-Sensor, D-Sensor
DRAIN PAN FIXTURE 30220L0502 A5052P-H14
EVAPORATOR THERMAL FUSE 30272L0400 250V/7.5A PST-3(80/10)
EVAPORATOR DRAIN ELBOW 30225L0100 PA-6
EVAPORATOR DEFROST HEATER 30228L0802 SUS304, ø8 445W
EVAPORATOR DEFROST HEATER 30228L0700 SUS304, ø8 600W
EVAPORATOR DEFROST HEATER 30228Q0600 SUS304, ø8 900W
EVAPORATOR DRAIN PAN HEATER 30228L1400 90W L=6,225mm
EVAPORATOR DRAIN PAN HEATER 30228Q0500 90W L=8,290m
EVAPORATOR DRAIN PAN HEATER 30228L1500 90W L=9,335mm
DRAIN HOSE HEATER 30228L1310 10W L=700mm
DRAIN PAN INSULATOR 30233L0100 E-PS
DRAIN PAN INSULATOR 30233L0200 E-PS
DRAIN PAN INSULATOR 30233Q0100 E-PS
EVAPORATOR FAN MOTOR GUARD 30214K0100 ABS
EVAPORATOR FAN MOTOR BLADE 30218F0200 AL ø175
EVAPORATOR FAN MOTOR 3963328120 IS-4420DWSN-2A

1 111
1 111

11
55

5 555

111111
11

11

11

1

1

1

1
1

1

11 1

11 1
11 1
111111

11 1
111111

1

1

1

1

1

1

11 1
11

11

11
121222
121222
121222

Part name Code Material Description

Model

R-23S R-49S F-23S F-49S R-72S F-72S

24

P AR T-LIST OF SOLID DOOR MODEL

DUCT (A) 30269L0304 SUS 304
DUCT (A) 30269L0404 SUS 304
DUCT (A) 30269Q0500 SUS 304
DUCT (B) 30269L0507 SUS 304
DUCT (B) 30269L0606 SUS 304
DUCT (B) 30269Q0400 SUS 304

Top Grille Panel

TOP GRILLE PANEL ASSEMBLY 30224L0450
TOP GRILLE PANEL ASSEMBLY 30224L0230
TOP GRILLE PANEL ASSEMBLY 30224L0350
TOP GRILLE PANEL ASSEMBLY 30224L0130
TOP GRILLE PANEL ASSEMBLY 30200Q3800
TOP GRILLE PANEL ASSEMBLY 30200Q4000
TOP GRILLE PANEL 30224L0304 STS304-HL
TOP GRILLE PANEL 30224L0104 STS304-HL
TOP GRILLE PANEL 30200Q3900 STS304-HL
TOP GRILLE 30216Q0100 ABS BLACK
TOP GRILLE 30216Q0200 ABS BLACK
TOP GRILLE 30216Q0300 ABS BLACK
BRAND LOGO 30242Q0500

BLACK, HOT-STAMP
PCB HARNESS 30227L1001
FRONT LABEL 30235Q0900 PC, T0.254
FRONT LABEL 30235L0100 PC, T0.254
DOOR LOCK(KEY) 30238G0100
CONTROL BOARD HOUSING 30242L0100 BLACK, HOT-STAMP
DISPLAY PCB 30243Q0100
DISPLAY PCB 30243L0100
MAIN PCB 30243L0300
MAIN PCB 30243L0310
MAIN PCB 30243L0200
MAIN PCB 30243Q0300
POWER SWITCH (ROCKER SWITCH) 30281Q0100 125V/15A
DOOR SWITCH 30281L0100 SP201R-10D
TRANSFORMER 30284L0100 DWS-115U

Bottom Grille

BOTTOM GRILLE ASSEMBLY 30224L1410 STS304-HL

R-23S R-49S F-23S F-49S R-72S F-72S

11

11

11

11

11

11

1

1

1

1

1

1

11

11

11

11

11

11
111111
111111
11 1

11 1
121233
111111
11 1
1

1

11 1

1

1
111111
121233
111111

11

Part name Code Material Description

Model

P AR T-LIST OF SOLID DOOR MODEL

BOTTOM GRILLE ASSEMBLY 30224L1400 STS304-HL
BOTTOM GRILLE ASSEMBLY 30200Q4100 STS304-HL

Lamp

LAMP SHIELD 30214L3200 PP MILKY
LAMP HARNESS 30227L0900
LAMP BULB 30236L0100 25W/120V
LAMP SOCKET 30279L0100

MEDIUM BASE

L-124B-PVC

Shelf

SHELF STANDARD 30220L1001 STS304-2B 0.8T, L=48”
SHELF CLIP 30220L0900 PA-6
SHELF 30278Q0100 STS304
SHELF 30278Q0200 STS304
SHELF 30278Q0210 STS304
SHELF STANDARD (REAR POST ASSEMBLY)

30245Q0400 AL+STS L=51.5”

SHELF STANDARD (FRONT POST ASSEMBLY)

30245Q0410 AL+STS L=50”

COLD AIR FLOW GUIDE WIRE 30269Q0600 PE

25

11

11

111122
111122
111122
111122

484844

12 24 12 24 36 36

33

669

9

22
22

6

Part name Code Material Description

Model

R-23S R-49S F-23S F-49S R-72S F-72S

26

7. REPLACEMENT OF MAIN COMPONENTS

7-1. TOP GRILLE PARTS

- MAIN PCB or TRANSFORMER

- DISPLAY PCB

- DOOR LOCK or POWER SWITCH (ROCKER SWITCH)

- DOOR SWITCH

A. Unscrew the screw located both sides of top grille panel.

27

REPLACEMENT OF MAIN COMPONENTS

B. Unscrew the screws located on top of top grille panel.

28

REPLACEMENT OF MAIN COMPONENTS

C. Unscrew the screws located on bottom of top grille panel.

* Caution : When unscrewing, hold the top grille panel.

Falling down top grille may cause bruise.

D. Place the top grille panel on the top of the cabinet.

E. You can replace PCB, Transformer.

29

REPLACEMENT OF MAIN COMPONENTS

F. Pull out the harness located back of top grille panel.

You can separate top grille panel.
You can replace power switch(rocker switch), door switches(lamp switch) and control board housing.

G. To re-assemble, do reversed in order.

30

REPLACEMENT OF MAIN COMPONENTS

7-2. REPLACING DOOR

A. Disassemble top grille panel as described section 7-1 A.B.C.D.
B.

Remove Bottom Grille by unscrewing the four screws located on each side of the Bottom Grille.

C. Open the electrical box. Then uncap the door heater wire. (Freezer model only)

31

REPLACEMENT OF MAIN COMPONENTS

D.

The figure of the disassembled top grille
panel.

E. Unscrew the hinge.

F. Unscrew the last screw with pushing the

hinge.

G. After unscrewing, the hinge will rotate

about 90˚(CCW), of itself.

32

REPLACEMENT OF MAIN COMPONENTS

H. Lift the door and pull out the door heater’s lead wire.

I. Replace the door with the new one.

J. Ready the hinge as below. It is important to set initial position (angle).

33

REPLACEMENT OF MAIN COMPONENTS

K. Initial position of the hinge must be as below.

L. Turn the hinge 90˚ CW. This turning causes torsion strength of the bar spring that

shuts the door(s) automatically.

M. Screw the hinge with pushing it. After installation of the door(s), assemble the top

grille panel.

34

REPLACEMENT OF MAIN COMPONENTS

7-3. REFRIGERATION COMPARTMENT’S PARTS

A. Disassemble lamp shield.

- LAMP BULB or LAMP SHIELD

- EVAPORATOR FAN MOTOR

- F/D SENSOR or R/D SENSOR

- EVAPORATOR DEFROST HEATER

- EVAPORATOR COIL

B. Disassemble Duct (A).

C. Pull out the lamp harness.

35

REPLACEMENT OF MAIN COMPONENTS

D. Disassembe duct (B).

E. Pull-out the evaporator drain pan heater’s leadwire.

F. Figure of disassembled refrigeration compartments.

In this situation, you can replace fan motor, F/D-sensor, Evaporator coil, ETC.

36

G. Replacing evaporator fan motor

F-1. Pull out the fan motor’s connector.
F-2. Unscrew the four screws which located on bottom of fan motor.

H. Replacing F/D-Sensor or R/D-Sensor

H-1. F-Sensor of Freezer

Unscrew as illustrated below and pull-out the F-Sensor from the cover.

F-Sensor
(Orange Color)

REPLACEMENT OF MAIN COMPONENTS37REPLACEMENT OF MAIN COMPONENTS

H-3. R-Sensor of Refrigerator

Unscrew as illustrated below and pull-out the R-Sensor from the cover.

TSR-49SD
TSR-72SD

TSR-23SD

H-2. D-Sensor of Freezer (Evaporator Defrost Sensor)

Disassemble the D-Sensor from evaporator’s end plate.

D-Sensor
(Blue Color)

R-Sensor
(White Color)

R-Sensor
(White Color)

Unscrew

Unscrew

38

H-5. F/D Sensor or R/D Sensor

After unplug each sensor, pull-out the sensor’s lead wire.

H-4. D-Sensor of Refrigerator

Remove the absorber pad at the end of thermo-pipe and pull-out the D-Sensor.

D-Sensor
(Blue Color)

Thermo-Pipe

D-Sensor

D-Sensor

R-Sensor

F-Sensor

F/D Sensor

(F-Sensor : Orange Color,

D-Sensor : Blue Color)

R/D Sensor

(R-Sensor : White Color,

D-Sensor : Blue Color)

REPLACEMENT OF MAIN COMPONENTS39REPLACEMENT OF MAIN COMPONENTS

A. After disassembling the duct(A) and the

duct(B), get ready as below for replacing
the evaporator defrost heater.

B. Pull out the pins from the bottom of the
evaporator using the nipper, etc.

H. Split the hooks of the evaporator.

REPLACING EVAPORATOR DEFROST HEATER (FREEZER ONLY)

40

REPLACEMENT OF MAIN COMPONENTS

D. After removing all pins, disconnect the connectors from the thermal fuse and the main

E. Take apart the evaporator defrost heater from the evaporator.

41

REPLACEMENT OF MAIN COMPONENTS

F. Install the new evaporator defrost heater in original position.

G. Pat the evaporator defrost heater with the soft hammer.

H. Pinch the hooks of the evaporator.

42

REPLACEMENT OF MAIN COMPONENTS

I . Assemble the pins in original positions.

J. Connect the connectors of the evaporator defrost heater to them of the thermal fuse

* NOTE

Why is always 115 voltage detected between connectors of the evaporator defrost heater
in the main harness?

The SNUBBER(located Main PCB) holds two AC power lines simultaneously.
The SNUBBER prevents Main PCB malfunction from sparks occurred by other electrical
component’s ON/OFF. (SNUBBER = Spark killer)
Because of the SNUBBER, 115 voltage is always detected, but electrical current in this case is
very little(small Amps.). So, this electrical current is not enough to operate the evaporator
defrost heater.

How to measure the Amps. of the evaporator defrost heater.

Disconnect the connectors of the evaporator defrost heater.
Then, prepare the additional Power Source(115V/60Hz) and the Amp. Meter.
Connect the evaporator defrost heater to the additional power source and read amp. value from
the Amp. Meter.

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REPLACEMENT OF MAIN COMPONENTS

7-4. CONDENSING UNIT

- Condensing units : Compressor, Condenser Fan Motor, Condenser Coil, Condenser Dryer....

- Others : Compressor Power Cord (Relay harness), Main Power Cord, Electrical Box, ETC.

A. Disassemble Bottom Grille as described section 7-2. B.

B. Unscrew two screws as below.

C. Unplug the compressor’s power plug.

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D. Pull-out the condensing unit.

REPLACEMENT OF MAIN COMPONENTS45REPLACEMENT OF MAIN COMPONENTS

7-5. REPLACING CABINET FRAME HEATER (and/or) MULLION HEATER

A. Insert the and edge of ‘–’type screw

driver into the gap between the frame
and the frame cover.

B. Take apart the frame cover from the

frame.

C. Separate the frame cover by sliding the

screw driver.

D. Do just like above instructions in other

parts (bottom side, right side and top
side).

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REPLACEMENT OF MAIN COMPONENTS

E. Below picture shows the inlet of the

cabinet frame heater toward the
electrical box.

F. Uncap connectors of the cabinet frame

heater.

G. Pull out the heater wire from the inlet. H. Insert the new cabinet frame heater wire

to the inlet, after surrounding it along the
frame.

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REPLACEMENT OF MAIN COMPONENTS

I. Assemble the frame cover with the frame.

Push and slide the frame cover toward
corner.

J. Fit the end lines of the frame cover each

other.

K. Fit the other side of the frame cover, too. L. Pat the frame cover with the soft

hammer, etc.

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REPLACEMENT OF MAIN COMPONENTS

M. Do like above instructions in other parts (Left side, right side and top side).

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REPLACEMENT OF MAIN COMPONENTS

N. Unscrew the screws from the mullion.

O. Take apart the mullion cover from the

mullion.

P. Take care for the mullion heater not to

be hurt. (It does not matter, if this heater
is out of order).

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REPLACEMENT OF MAIN COMPONENTS

S. Pull out the heater wire from the inlet.

Q. Pull out the insulator from inside. R. Uncap connectors of the mullion heater.

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REPLACEMENT OF MAIN COMPONENTS

U. Change the old mullion heater and

install the new one with the gap between
wires 1.2 inch.

V. Insert the mullion cover(SUS) into the

original pisition.

T. Pull out the mullion cover(SUS) from the mullion cover (ABS).

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REPLACEMENT OF MAIN COMPONENTS

W. Connect the heater wires with the main harness and the electrical box harness.

X. Cover the caps on the connection parts and press them tightly.