Kenmore 795.69372.902, 795.69293.902, 795.69374.902, 795.69299.902, 795.69376.902 Service Manual

R

TOP FREEZER REFRIGERATOR

REFRIGERATOR

SERVICE MANUAL

CAUTION
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

MODELS:

795.69292.902

795.69293.902

795.69299.902

795.69372.902

795.69374.902

795.69376.902

795.69379.902

795.69912.902

795.69913.902

795.69919.902

795.69972.902

795.69974.902

795.69976.902

795.69979.902

795.79292.902

795.79293.902

795.79299.902

795.79372.902

795.79374.902

795.79376.902

795.79379.902

795.79912.902

795.79913.902

795.79919.902

795.79972.902

795.79974.902

795.79976.902

795.79979.902

MFL62078212

Sears, Roebuck and Co., Hoffman Estates, IL60179 U.S.A.

www.sears.com

CONTENTS

- 2 -

WARNINGS AND SAFETY PRECAUTIONS ....................................................................................

1. SPECIFICATIONS .........................................................................................................................

2. PARTS IDENTIFICATION ..............................................................................................................

3. DISASSEMBLY...............................................................................................................................

3-1 Remove Freezer Door...............................................................................................................

3-2 Remove Refrigerator Door........................................................................................................

3-3 Replace Refrigerator Door........................................................................................................

3-4 Replace Freezer Door...............................................................................................................

3-5 Reverse Freezer Door...............................................................................................................

3-6 Reverse and Reattached Refrigerator Door..............................................................................

3-7 Leveling and Door closing.........................................................................................................

3-8 Door Alignment.........................................................................................................................

3-9 Fan and Fan Motor....................................................................................................................

3-10 Defrost Control Assembly........................................................................................................

3-11 Lamp.......................................................................................................................................

3-12 Control Box-Refrigerator.........................................................................................................

4. ADJUSTMENT...............................................................................................................................

4-1 Comprssor................................................................................................................................

4-2 PCT-Starter ..............................................................................................................................

4-3 OLP (Overload Protector).........................................................................................................

5. CIRCUIT DIAGRAM.......................................................................................................................

6. TROUBLE SHOOTING...................................................................................................................

6-1 Compressor and electric components .....................................................................................

6-2 PTC and OLP ...........................................................................................................................

6-3 Other electrical components ....................................................................................................

6-4 Service diagnosis chart ............................................................................................................

6-5 Refrigeration cycle ...................................................................................................................

7. OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER ............................................

7-1 Operation principle ...................................................................................................................

7-2 Ice maker functions ..................................................................................................................

7-3 Defect diagnosis function .........................................................................................................

8. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM ..............................................................

8-1 Function ...................................................................................................................................

8-2 PCB function ............................................................................................................................

8-3 Resistance specification of sensor ...........................................................................................

9. EXPLODED VIEW AND REPLACEMENT LIST............................................................................

2
3
5
6
6
6
7
7
8
9
12
12
13
13
13
13
14
14
14
15
16
17
17
18
19
20
21
22
22
23
25
26
26
29
32
33

SAFETY PRECAUTIONS

Please read the following instructions before
servicing your refrigerator.

1.Check the refrigerator for current leakage.

2.To prevent electric shock,unplug before
servicing.

3.Always check line voltage and amperage.

4.Use standard electrical components.

5.Don't touch metal products in the freezer with
wet hands.This may cause frost bite.

6.Prevent water from spiling on to electric
elements or the machine parts.

7.Before tilting the refrigerator, remove all materials
from on or in the refrigerator.

8.When servicing the evaporator, wear gloves to
prevent injuries from the sharp evaporator fins.

9.Service on the refrigerator should be performed
by a qualified technician.Sealed system repair must
be performed by a CFC certified technician.

- 3 -

1. SPECIFICATIONS

1-1 DISCONNECT POWER CORD BEFORE SERVICING
IMPORTANT RECONNECT ALL GROUNDING DEVICES.

All parts of this appliance capable of conducting electrical current are grounded. If grounding wires, screws, straps, clips,
nuts or washers used to complete a path to ground are removed for service, they must be returned to their original position
and properly fastened.

1-2 IMPORTANT NOTICE

This information is intended for use by individuals possessing adequate backgrounds of electrical, electronic and
mechanical experience. Any attempt to repair a major appliance may result in personal injury and property damage. The
manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in
connection with its use.

1-3 ELECTRICAL SPECIFICATIONS

Temperature Control (Position: MID) .................................................................................................................... -6°F to +8°F

Defrost Control ......................................................................................................................................................... Automatic

Defrost Thermostat ........................................................................................................................................................... 50°F

Electrical Rating: 115VAC, 60Hz ..................................................................................................................................... 1 -5A

Maximum Current Leakage ............................................................................................................................................ 0.5mA

Maximum Ground Path Resistance ......................................................................................................................... 0.14Ohms

Energy Consumption ..............................................................................................................19cuft 396KWh/yr (Energy star)

22cuft 423KWh/yr (Energy star)

1-4 NO LOAD PERFORMANCE

Control Position: MID/MID

And ambient of: 70°F 90°F

Fresh Food, °F .......................................................33°F to 41°F ............................................................................33°F to 41°F

Frozen Food, °F ......................................................-4°F to +4°F ............................................................................-4°F to +4°F

Percent Running Time ..............................................25% - 35% ...............................................................................45% - 60%

1-5 REFRIGERATION SYSTEM 1-6 INSTALLATION

Minimum Compressor Capacity Vacuum .......................... 21 in Clearance must be provided at top, sides and rear of the

Minimum Equalized Pressure refrigerator for air circulation.

@ 70°F ...........................................................49PSIG AT TOP ..............................................................................1in

@ 90°F ...........................................................56PSIG AT SIDES .....................................................................1/18 in

Refrigerant R134a .......................................................... 4.2 Oz AT REAR ...........................................................................1in

Compressor .............................................................700BTU/hr

PERFORMANCE DATA

(NORMAL OPERATING CONDITIONS)

AMB WATTS

70°F

90°F

110°F

98 (+10 / -10)

98 (+10 / -10)

103 (+5 / -5)

SYSTEM PRESSURE (PSIG)

HIGH SIDE LOW SIDE

98 (+5 / -3)

132 (+3 / -3)

180 (+5 / -5)

1-8 AIR FLOW

(-5) to (-2)

(-4) to 1

(-2) to 3

1-7 REPLACEMENT PARTS

Relay (PTC) ..................................EBG32606502

Overload Protector (OLP) ............. 6750C-0005P

Defrost Thermostat ....................... 6615JB2005C

Defrost Heater ................. 19cuft - 5300JK1003D

................. 22cuft - 5300JK1003J

Evaporator Fan Motor ................... 4681JB1029J

Capacitor ...................................... 0CZZJB2012J

Compressor (Hi-Side) .................. TCA33414101

Evaporator (Lo-Side) ........ 19cuft - 5421JJ0003A

........ 22cuft - 5421JJ0002A

Condenser ......................... 19cuft - 5403JJ1010A

......................... 22cuft - 5403JJ1008A

Dryer ............................................. 5851JJ2002F

Temperature Control .................... 6871JB2036D

Main Control ................................ EBR41531306

EVAPORATOR FAN

HOT LOOP

DRYER

COMPRESSOR

CONDENSER

EVAPORATOR

CONDENSER FAN

- 4 -

COLD AIR

MIXED AIR

AIR RETURN TO
EVAPORATOR

EVAPORATOR

FREEZER

CONTROL

FRESHFOOD

2. PARTS IDENTIFICATION

- 5 -

CustomCube Ice maker

Freezer Shelf

Digital Sensor Control

Refrigerator Light

Snack Pan

Freezer Door Bin

Dairy Corner

Can Dispenser

Door Bin

Refrigerator Door Rack

B

C

D

A

E

Use this section to become more familiar with the parts and features. Page references are included for your
convenience.

NOTE:This guide covers several different models.The refrigerator you have purchased may have some
or all of the items listed below.The locations of the features shown below may not match your model.

I

K

L

J

M

Shelves

Crisper

F

G

Base Grille

H

Keeps fruits and vegetables fresh and crisp

A

C

D

E

F

H

I

O

L

G

M

N

O

Vitabox (Inside)*

*On some models

Ice Bin

N

B

K

J

3. DISASSEMBLY

- 6 -

3-1 REMOVE FREEZER DOOR

• Gently pry o the Top Hinge Cover with a at head
screwdriver and remove (see Fig 1).

• Using 10 mm or 13/32-inch socket wrench, remove
the 3 bolts and lift o the Top Hinge (see Fig. 2).
Set parts aside.

• Lift freezer door slightly and remove it.
(Fig. 3). Set aside.

Fig. 1

3-2 REMOVE REFRIGERATOR DOOR

• Loosen and remove the 2 bolts and the phillips head
screw to remove the Middle Hinge Bracket from

refrigerator housing (Fig. 4 and 5). Set parts aside.

• Lift up door slightly and remove it.

To replace doors, begin with refrigerator door and then
follow with freezer door.

Fig. 2

Fig. 5

Fig. 6

Fig. 4

Middle
Hinge Bracket

Middle
Hinge Bracket

Fig. 3

3-3 REPLACE REFRIGERATOR DOOR

• Set door onto Bottom Hinge Pin.

• Place Hinge Pin of Middle Hinge Bracket inside

Hinge Pin Insert on top of door (Fig. 7). Hold door
in place and

the holes in refrigerator housing.

Fig. 7

line up the Middle Hinge Bracket with

• Place Upper Hinge’s Pin in the top of freezer door
and line up the Upper Hinge with holes in top of

refrigerator. Use the 3 bolts to replace Hinge (Fig. 10).

Fig. 10

• Carefully force-t Top Hinge Cover back into place
over Hinge (Fig.11).

• Use the 2 bolts and phillips screw to refasten
the Middle Hinge Bracket and door to the
refrigerator housing. (Fig. 8).

Fig. 8

3-4 REPLACE FREEZER DOOR

• Set the freezer door onto the Middle Hinge Pin
(Fig. 9).

Fig. 9

Fig. 11

ELECTRICAL SHOCK HAZZARD

Before you begin, either unplug the refrigerator or turn
o power at the circuit breaker or fuse box. Remove
food and any Adjustable Door or Utility Bins from doors.
Failure to do so could result in death or serious injury.

- 7 -

3-5 REVERSE FREEZER DOOR

• Gently pry off the Top Hinge Cover with a flat head
screwdriver and remove (see Fig.13).

Fig. 13

• Using 10mm or 13/32-inch socket wrench, remove
the 3 bolts and lift off the Top Hinge (see Fig. 14).
Set parts aside.

Fig. 14

Top Hinge

• Move the Hinge Pin Insert Bracket to the other side
of the door, keeping the same orientation, and move
the Hinge Pin Insert into the hole on the left side
of the bracket (Fig. 17).

Hinge Pin Insert

Hinge Pin
Insert Bracket

• Reverse Door Closer/Stop by flipping over
(see Fig. 18), place on top of Hinge Pin Insert
Bracket, and tighten both down with the screw.

• Lift up door slightly and remove it (Fig. 15).

Fig. 15

Mode Hinge Bracket

Hinge Pin

• Turn freezer door upside down on a non-scratch

surface and loosen the screw to remove Door
Closer/Stop and Hinge Pin Insert (see Fig. 16).

Door Closer/ Stop

• Pry off cover on top of refrigerator on left side to
uncover screw holes (Fig. 19).

• Set freezer door and Top Hinge parts to the side
and remove refrigerator door.

Fig. 19

Cover
(on top of
refrigerator)

- 8 -

3-6 REVERSE AND REATTACH
REFRIGERATOR DOOR

• Using a ¼-inch socket wrench, loosen and remove
Hinge Pin from the Middle Hinge Pin Bracket.
Remove washer underneath the middle hinge and
set aside

NOTE: At this point the door will be loose, lift up

door slightly and remove it. (Fig. 20 and 20a).

Fig. 20

Fig. 20a

• Remove base grill.

• Remove the washer from the Bottom Hinge Pin (Fig.22).

• Using a ¼-inch socket wrench, loosen and remove
the Hinge Pin from the Bottom Hinge. Reattach
the Hinge Pin to the opposite side of the Hinge
(see Fig. 22 and 22a).

NOTE: This is easier to do while the Hinge is still attached.

Fig. 20Fig. 22

Fig. 20aFig. 22a

• Loosen and remove the 2 bolts and the

phillips head screw to remove the Middle
Hinge Bracket from refrigerator housing
(Fig. 21). Set parts aside.

Fig. 21

• Using 10 mm or 13/32-inch socket wrench
with 2-inch extension, loosen the 3 bolts
and remove the Bottom Hinge from right
side of housing (Fig. 23).

Fig. 23

- 9 -

• At this point, remove the Decorative Bolt on bottom on
refrigerator housing from the left side of refrigerator
(Fig. 24). You will need this hole for the Bottom Hinge.

Fig. 24

• Move the Bottom Hinge to the left side of housing keeping
the same orientation, and reattach with 3 bolts (Fig. 25).
Now move Decorative Bolt to hole on lower right side
of housing.

Fig. 25

• Take out the Hinge Pin Insert and move the Bracket to the
other side of the door,keeping the same orientation (Fig. 28).

• Place Hinge Pin Insert into the left side
of the bracket. Tighten Hinge Pin Bracket
to door (Fig. 28).

Fig. 28

Hinge
Pin Bracket

Hinge Pin Insert

• Take Door Closer/stop and flip (see Fig. 29). Line up screw
holes and mount on left side of door bottom with the two
screws. Turn door upright. It is now ready for re-attaching.

NOTE: The Refrigerator Door Closer/Stop is not used on all
models. The model you have may not include this part.

Fig. 29

• Turn refrigerator door upside down on a non-scratching
surface.

• With door upside down, loosen the 2 screws and remove the
Door Closer/Stop (Fig. 26), then loosen the other two screws to
remove the bottom Hinge Pin Insert Bracket with Hinge Pin
Insert (see Fig. 27).

NOTE: The Refrigerator Door Closer/Stop is not used on all
models. The model you have may not include this part.

Fig. 26

Door Closer/Stop

Fig. 27

Hinge
Pin Bracket

Hinge Pin
Insert

• With flat-head screwdriver, carefully pry off and remove the
cover over the screw holes on the left side of refrigerator
housing (Fig. 30).

Fig. 30

• Remove the outer lower Decorative Screw from housing
at area between freezer and refrigerator doors (Fig. 31).
(You will need this hole for the Middle Hinge Bracket).

Fig. 31

- 10 -

• Following illustration, flip the Middle Hinge Bracket (Flange
will now be on top) and position on left side of refrigerator
and re-attach with two bolts and a Phillips screw. (Fig. 32).

• Place refrigerator door down over pin on bottom hinge.
(Fig. 32).

• Place washer between refrigerator door and middle hinge
and re-attach Hinge Pin to Hinge Bracket with 1/4-in.socket
wrench.

• Tighten bolts. Force-fit Top Hinge Cover over Top Hinge.

NOTE: Bracket has been flipped, but Hinge Pin stays in the
same orientation with its hexagonal end facing upward.

• Place Decorative Screw into outer hole on right side of
housing.

• Attach cover on the right side. Cover is force-fitted

Decorative
Screw

Fig. 33

Fig. 36

• Replace cover from left side of refrigerator top onto the
right of top to cover the holes. Cover is also force-fitted

Cover (on top of
refrigerator)

Fig. 37

After changing doors, make sure that the corners of the
Door Gaskets are not folded over. To ensure a good seal,
apply a small amount of silicon grease on the corners of
gaskets.

Corners

REATTACHING FREEZER DOOR

• Put freezer door down over the Hinge Pin on the Middle
Hinge Pin Bracket

• Place Upper Hinge’s Pin in the top of freezer door and line
up the Upper Hinge with holes in top of refrigerator. Use the 3
bolts to replace Hinge.

Fig. 35

Fig. 38

-11 -

3-7 LEVELING AND DOOR CLOSING

To avoid vibration, the unit must be leveled.
adjust the Leveling Legs to compensate for unevenness
of the floor. The front should be slightly higher than the
rear to aid in door closing.

Your refrigerator has two Front Leveling Screws – one on
the right and one on the left. If your refrigerator seems
unsteady or you want the doors to close more easily,
adjust the refrigerator’s tilt using the instructions below:

1. Plug refrigerator power cord into a 3-prong grounded
outlet. Move the refrigerator into its final position.

2. Remove the base grill.
The two Leveling Screws

on the bottom of the refrigerator on either

side (see Fig. 39).

3. Insert a flat screwdriver in slots to adjust the Leveling
Screws (Fig. 39). Turn the leveling screw clockwise
to raise that side of the refrigerator or counterclockwise
to lower it. It may take several turns of the Leveling
Screw to adjust the tilt of the refrigerator.

NOTE: Having someone push against the top of the
refrigerator takes some of the weight off the Leveling
Screws. This makes it easier to adjust the screws.

Fig. 39

are located

If necessary,

3-8 DOOR ALIGNMENT

If the space between your doors is uneven, follow the

instructions below to align the doors:

1. Gently pry off the Top Hinge Cover with a flat head
screwdriver and remove. Loosen the Top Hinge Bolts
using a 10 mm or 13/32-in. socket wrench or
open-end wrench.

2. Have someone hold the freezer door so the space
between the two doors is even, and retighten
the top hinge bolts.

3. Replace the Top Hinge Cover.

4. Open both doors again and check to make sure
that they close easily. If not, tilt the refrigerator
slightly more to the rear by turning both Leveling
Screws clockwise. It may take several more turns,
and you should turn both Leveling Screws the
same amount.

5. Replace the base grill.

- 12 -

3-10 DEFROST CONTROL ASSEMBLY

Defrost Control assembly consists of Defrost Sensor and
FUSE–M.

Defrost sensor functions to defrost automatically. It is
attached to metal side of the Evaporator and senses
Temperature. At the temperature of 162°F(72°C), it stops
the emission of heat from the Heater.

Fuse-M is a safety device for preventing over-heating of
the Heater when defrosting.

1. Pull out the grille assembly. (Figure 41)

2. Separate the connector of the Defrost Control
assembly and replace the Defrost Control assembly
after cutting the Tie Wrap. (Figure 42)

3-11 LAMP

3-11-1 Refrigerator Compartment Lamp

1. Unplug the power cord from the outlet.

2. Remove refrigerator shelves.

3. Release the hooks on both ends of the lamp shield and
pull the shield downward to remove it.

4. Turn the lamp counterclockwise.

5. Assemble in reverse order of disassembly. Replacement
bulb must be the same specification as the original
(Max. 40 W-1EA).

3-12 CONTROL BOX-REFRIGERATOR

1. First, remove all shelves in the refrigerator. Then remove
the Refrigerator Control Box by loosening 2 screws.

2. Remove the Refrigerator Control Box by pulling it
downward.

3. Disconnect the lead wire on the right position and
separate the lamp sockets.

SHROUD

GRILLE

FAN MOTOR

Fig. 40

GRILLE ASSEMBLY

Fig. 41

DEFROST-CONTROL
ASSEMBLY

Fig. 42

COVER LAMP

CONTROL BOX

Fig. 43

Fig. 44

3-9 FAN AND FAN MOTOR

1. Remove the freezer shelf. (If your refrigerator has an
icemaker, unplug and remove the icemaker first).

2. Remove the screw of the cover grille fan

3. Remove the grille by pulling it out and by loosening a screw.

4. Remove the Fan Motor assembly by loosening 4 screws and
disassemble the shroud.

5. Pull out the fan and separate the Fan Motor and Bracket.

FAN

BRACKET

- 13 -

4-2-4 Role of Combo TSD

(1) The combo is attached to the sealed compressor and is
used for the operation and protect the motor.
(2) The compressor is a single phase induction motor. During
the starting and operation, the combo allows current flow to
both the start and main winding.

4-2-5 PTC/Combo - Applied Circuit Diagram

Starting Method for the Motor

4. COMPRESSOR ELECTRICAL

4-1 COMPRESSOR

4-1-1 Role

The compressor intakes low temperature and low pressure gas
from the evaporator of the refrigerator and compresses this gas
to high temperature and high pressure gas. It then delivers the
gas to the condenser.

4-1-2 Composition

The compressor includes overload protection. The PTC starter
and OLP (overload protector) are attached to the outside of the
compressor. Since the compressor is manufactured to
tolerances of 1 micron and is hermetically sealed in a dust and
moisture-free environment, use extreme caution when
repairing it.

4-1-3 Note for Usage

(1) Be careful not to allow over-current.
(2) If compressor is dropped or handled carelessly, poor
operation and noise may result.
(3) Use proper electric components appropriate to the particular
compressor in your product.
(4) Keep compressor dry.
If the compressor gets wet (in the rain or a damp environment)
and rust forms in the pin of the Hermetic Terminal, poor
operation and contact may result. If the hermetic connector
rusts out or fails, refrigerant and oil will be expelled into the
contact area, probably resulting in smoke and fire.
(5) When replacing the compressor, be careful that dust,
humidity, and soldering flux don´t contaminate the inside of the
compressor. Contamination in the cylinder may cause noise,
improper operation or even cause it to lock up.

4-2 PTC-STARTER/ COMBO

4-2-1 Composition of PTC- Starter

(1) PTC (Positive Temperature Coefficient) is a no-contact
semiconductor starting device which uses ceramic material
consisting of BaTiO3.
(2) The higher the temperature is, the higher the resistance
value. These features are used as a starting device for the
motor.

4-2-2 Role of PTC-Starter

(1) The PTC is attached to the Sealed Compressor and is used
for starting the motor.
(2) The compressor is a single-phase induction motor. During
the starting operation, the PTC allows current flow to both the
start winding and main winding.

4-2-3 Combo TSD

TSD (Time Starting Device) is a new electronic starting system
for high efficiency compressors due to the following
characteristics:
(1) Combo concept-overload protector, electronic board and
cover in a single casing.
(2) Fully electronic concept.
(3) Full integration of starting and protection devices.
(4) Free from mechanical and electromagnetic noises.

PK

CAPACITOR PART

Cs

3

2

RD

6

P.T.C

5

Cr

4

BL

BK

BL

OLP

PART

COMP' EARTH

GN

(GN)

/YL

M

S

LD,LQ COMP'

EG COMP'

3

2

* P.T.C OPTION

6

3

2

5

5

6

4

4

* ALTERNATIVE COMP'

ACCESSORIES

CR

BK

L

BL

N

COMBO KIT
(PTC+OLP)

PTC

OLP

COMPRESSOR
ACCESORIES

PTC
DIAGRAM

COMBO KIT
DIAGRAM

- 14 -

4-2-8 Note for using the PTC-Starter / Combo

(1) Be careful not to allow over-voltage and over-current
(2) Do not drop or handle carelessly.
(3) Keep away from any liquid.
If liquid such as oil or water enters the PTC/Combo,
PTC/Combo materials may fail due to breakdown of their
insulating capabilities.
(4) If the exterior of the PTC/Combo is damaged, the resistance
value may be altered. This can cause damage to the
compressor and result in a no-start or hard-to-start condition.
(5) Always use the PTC/Combo designed for the compressor
and make sure it is properly attached to the compressor. Parts
may appear physically identical but could have different
electrical ratings. Replace parts by part number and model
number. Using an incorrect part could result in damage to the
product, fire, injury, or possibly death.

Customer part
number

Lot code/
date code

330 FBYY -S1 BOX98

12345678

Physical

termination
part number

Electrical

characteristics

part number

(OVERLOAD PROTECTOR cross section)

Fig. 45

4-3 OLP (OVERLOAD PROTECTOR)

4-3-1 Definition of OLP

(1) OLP (OVERLOAD PROTECTOR) is attached to the
compressor and protects the motor by opening the circuit to the
motor if the temperature rises activating the bimetal spring in
the OLP.
(2) When high current flows to the compressor motor, the
bimetal wors by heating the heater inside the OLP, and the OLP
protects the motor by cutting off the current flowing to the
compressor motor.

4-3-2 Role of the OLP

(1) The OLP is attached to the sealed compressor used for the
refrigerator. It prevents the motor coil from being started in the
compressor.}
(2) For normal operation of the OLP, do not turn the adjust screw
of the OLP in anyway.

4-2-6 Motor Resarting and PTC/ Combo Cooling

(1) It requires approximately 5 minutes for the pressure to
equalize before the compressor can restart.
(2) The PTC/Combo device generates hea during operation.
Therefore, it must be allowed to cool before the compressor can
restart.

4-2-7 Relation of PTC-Starter / Combo and OLP

(1) If the compressor attempts to restart before the PTC/Combo
device is cooled, the PTC/Combo device will allow current to
flow only to the main winding.
(2) The OLP will open because of the over current condition.
Thissame process will continue (3 to 5 times) when the
compressor attempts to restart until the PTC/Combo device has
cooled. The corret OLP must be properly attached to prevent
damage to the compressor.
Parts may appear physically identical but could have different
electrical ratings. Replace parts by part number and model
number. Using an incorrect part could result in damage to the
product, fire, injury, or possibly death.

- 15 -

5. CIRCUIT DIAGRAM

- 16 -

PWB(PCB) ASSEMBLY, DISPLAY

CON101

2

BNRD1PK3YL4BL

5

RT-SENSOR

6

1 2 3 4 5 6

SB

WH

11 10

9 8 7 6 5 4 3 2 1

6
7

8

4321

1
2
3

4

5

1

2
3
4
5
6
7

10

9

8

BN

GYWH GY

CON5

CON6 CON8

11 10

9 8 7 6 5 4 3 2 1 5 6 71 2 3 4

123

CON3

CON1 CON2

CON7

CON4

RD

BN
PR
GY
WH

BO
BO
WH
WH

PRPK YL BL

SB

BK

BN

BLYLBNSB BL

PR

A B

DEF-SENSOR

R-SENSOR

C-FAN

F-FAN

GN/YL

PK

CAPACITOR PART

WH

1

1

CON4

MOTOR

1

WH

2

ICE MAKER

CON3

WH

2

CON5

1

SHEATH

ICE SENSOR

WH

M

BK

CON1

WH

HEATER,

CON2

Cs

3

2

RD

2

6

BK
1

S/W

CON6

P.T.C

BK

5

Cr

BL

POWER

4

RD
1

BL

I/MAKER W/VALVE

FUSE-M

(GN)

(98 C)

BK

FUSE-M

BL

OLP

PART

COMP' EARTH

(72 C)

GN

BL

HEATER

RD

(GN)

BL

R-LAMP

/YL

M

S

PWB (PCB) ASSEMBLY, ICE MAKER

ICE MAKER PART

POWER

SUPPLY

L

N

CORD

VV

SHEATH

com

nc

nc

com

DOOR S/W-R

A

B

SB BN YL BL BL BK

SB BN

PWB(PCB) ASSEMBLY, MAIN

DIFFERENT LOCALITIES AND MODEL TYPE.

ON CIRCUIT DIAGRAM ARE SUBJECT TO CHANGE IN

P.T.C,COMP' ACCESSORIES AND COMP' EARTH PART

*PLUG TYPE,ICE MAKER PART,CAPACITOR PART,

RD: RED

GN/YL: GREEN/YELLOW

WH: WHITE

BK/WH: BLACK/WHITE

BK: BLACK GN: GREEN GY: GRAY
YL: YELLOW

RD/WH: RED/WHITE

SB: SKY BLUE

PK: PINK

BL: BLUE

BL/WH: BLUE/WHITE

PR: PURPLE

BO: BRIGHT ORANGE

BN: BROWN

(GN)

GN/YL

COMP' ACCESSORIES

* ALTERNATIVE COMP'

LD,LQ COMP'

ACCESSORIES

EG COMP'

3

CR

BK

2

* P.T.C OPTION

L

BL

N

COMBO KIT
(PTC+OLP)

6

3

2

5

5

6

4

PTC

4

OLP

6. TROUBLESHOOTING

- 17 -

6-1 COMPRESSOR AND ELECTRIC COMPONENTS

1

2

3

4

5

2

5

5

3

5

1

43

YES

NO

YES

Open or short

YES

YES

NO

NO

Power Source.

No voltage.

(Rated voltage
±10%)?

Replace OLP.

Reconnect.

Did

compressor

start?

Compressor
is OK

Replace the
compressor

Check connection
condition.

OLP disconnected?

Advise customer that
power supply needs to be
checked by an electrician.

Supply
voltage rating
with ±10%.

Applied voltage isn't
in acceptable range.
(115V ±10%)

Remove PTC-Starter/Combo
from compressor and
measure voltage
between Terminal C of
compressor and

terminal 5 or 6 of PTC/Combo

Check resistance of

PTC-Starter/Combo

Check resistance of two
terminals in OLP.

Check the power supply
under load.
(Compressor attempting
to re-start after being off
for 5 minutes).

.

Check
resistance of
PTC-Starter.

Check OLP.

Check
starting state.

Check resistance
of motor
compressor.

Replace
compressor

Check
resistance of
motor
compressor.

The resistance between pins should be
between 1 and 50 ohms. The resistance to
ground should be infinite.

or short to
ground

Check the resistance
between M-C, S-C and M-S
in motor compressor.
Check each pin to ground.

Check resistance of
two terminals in
PTC-Starter/Combo

At normal temperature

6.8 +20: OK?

If power conducts: OK
If not: NG

6-2 PTC / COMBO AND OLP

Normal operation of
compressor is impossible
or poor.

65

Separate PTC-Starter/Combo

from Compressor and
measure resistance

between No. 5 and 6
of PTC-Starter with a
Tester.

(Figure 1 and figure 2)

Separate OLP from
compressor and check
resistance value between
two terminals of OLP with a
tester.
(Figure 3)

Shows continuity

Open

Observation value is

115V/60Hz : 6.8 ±30%

at room temperature

The resistance value
is 0 (short) or
8(open).

Check another
electric component.

Replace OLP.

PTC/ Combo OK

Replace PTC­Starter/Combo

OLP OK

Figure 1

?

Figure 3

Figure 2

- 18 -

6-3 OTHER ELECTRIC COMPONENTS

• Not cooling at all

Compressor
doesn't run.

• Poor cooling performance

Compressor runs
poorly.

Check for open short or
incorrect resistance readings
in the following components

a. Starting devices

b. OLP

c. Compressor coil

d.Wiring harness

Check a starting
voltage.

Check voltage at
starting devices.

Check current at
Compressor.

Cause

Short, open or broken.

Poor contact
or shorted.

Coil open or shorted.

Poor contact
or shorted.

Low voltage.

Poor or broken or
open contact.

Shorted.

Replace
indicated component.

Raise voltage.

Replace
indicated component.

Fan motor
doesn't run.

Heavy frost buildup on
EVAPORATOR.

Check rating of OLP.

Check wiring circuit.

Check Fan Motor.

Check current flow in
the following
components:

- Sensor

- Fuse-M

Check current flow in
the Defrost Heater.

Lack of capacity.

Wire is open or
shorted.

Coil is shorted or
open.

Open.

Open.

Replace
indicated component.

Replace
indicated component.

Replace
Defrost Heater.

- 19 -

6-4 SERVICE DIAGNOSIS CHART

COMPLAINT SYMPTOM POSSIBLE CAUSES SOLUTION

Electronic Display not

operating correctly

1. No Display at all

1. Supply voltage not within specifications

1. Check supply voltage to refrigerator

Not cooling

Not cold enough

Not defrosting

2. Partial or
abnormal display

1. Display on but
compressor not
operating

1. Display on
compressor is
operating

1. Freezer has to
much frost

2. Open in wiring harness from PWB board

3. Open in door monitor switch circuit

1. Supply voltage not within specifications

2. Open wiring harness from PWB board

1. Compressor not operating

2. Open in compressor circuit

1. Condenser fan motor not operating

2. Condenser coils blocked

3. Evaporator fan motor not operating

4. Internal air flow blocked

5. Sensor not operating properly

6. Door not sealing

7. Evaporator frosted up

8. Sealed system related problem

1. Open in defrost circuit

2. Chack wiring and connectors to PWB board

3. Check door monitor circuit

1. Check supply voltage to refrigerator

2. Chack wiring and connectors to PWB board

1. Check for compressor operation by using the test key
on main circuit board.

2. Check for open on OLP, PTC, compressor, wiring, etc.

1. Check condenser fan motor and wiring circuit

2. Check air flow across condenser

3. Check evaporator fan motor and wiring circuit

4. Check air ducts

5. Check refrigerator and freezer sensors

6. Check for proper door seal

7. Check defrost circuit components

1. Check defrost heater and circuit using Test Key

2. Defrost sensor not operating correctly

3. Defrost drain clogged

- 20 -

2. Check sensor

3. Check drain

6-5 REFRIGERATING CYCLE

• Troubleshooting Chart

CAUSE

STATE OF

THE UNIT

STATE OF THE
EVAPORATOR

TEMPERATURE

OF THE

COMPRESSOR

REMARKS

PARTIAL Freezer Low flowing sound of A little higher • Refrigerant level is low due
LEAKAGE compartment and Refrigerant is heard and than ambient to a leak.

LEAKAGE

Refrigerator don't frost forms in inlet only. temperature. • Normal cooling is possible by
cool normally. restoring the normal amount of

• Refrigerant and repairing the leak.

COMPLETE Freezer Flowing sound of refrigerant Equal to ambient • No discharging of Refrigerant.
LEAKAGE compartment and is not heard and frost isn't temperature. • Normal cooling is possible by

Refrigerator don't formed.
cool normally.

restoring the normal amount of

refrigerant and repairing the leak.

PARTIAL Freezer Flowing sound of refrigerant A little higher • Normal discharging of the
RESTRICTION

RESTRICTION

compartment and is heard and frost forms than ambient refrigerant.
Refrigerator don't in inlet only. temperature. • The capillary tube is faulty.
cool normally.

WHOLE
RESTRICTION

Freezer
compartment and
Refrigerator don't cool.

Flowing sound of refrigerant Equal to ambient • Normal discharging of the
is not heard and frost isn't temperature.

refrigerant.

formed.

MOISTURE Cooling operation Flowing sound of refrigerant Lower than • Cooling operation restarts
RESTRICTION

COMPRESSION

COMP- Freezer and Low flowing sound of A little higher • Low pressure at high side

DEFECTIVE

RESSION Refrigerator refrigerant is heard and ambient

stops periodically. is not heard and frost melts. ambient

temperature.

don't cool. frost forms in inlet only. temperature.

when heating the inlet of the
capillary tube.

of compressor due to low
refrigerant level.

NO COMP- No compressing Flowing sound of refrigerant Equal to ambient • No pressure in the high
RESSION operation. is not heard and there is temperature.

no frost.

pressure part of the

compressor.

Leakage Detection

Check sealed system for leak.

Check if compressor runs.

(If don’t , wait a while until it start to work)

If frost is formed normally

YES

Only check that there is not any
hole or bad welding in Eva in-Eva
out.

Check frost pattern on Evaporator.
(Eva In, Eva Out)

Moisture restriction.
intermittent problem.

No frost or frost forms
in inlet only

Normal Amount

Faulty
Compressor

Replace

Compressor

Confirm refrigerant
amount

None or too much.

Recharge refrigerant

(check correct quantity)

No frost
normally

Restriction

Check for oil leak on high
side (Machinery Room)

Frost formed
normally

Finished OK

YES

Gas leakage

Repair it.

Frost formed
normally

- 21 -

7. OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER

7-1 OPERATION PRINCIPLE

7-1-1 Operation Principle of Icemaker

Power On

Start Position

Icemaking

Mode

Harvest

Mode

Fill

Park Position

Test Mode

• Adjusts Ejector to Start Position whit power on.

•

Waits until water becomes cold after starting the

Icemaking operation.

• Runs MOTOR to drop ice from the tray into the ICE BIN.

• Performs Icemaking Mode after supplying water by operating
the SOLENOID in ICE VALVE.

• With the detect lever, checks if the ICE BIN is full.

• To operate LINE and SERVICE, press and hold the Fill Key
for 3 seconds. The icemaking will run through 3 stages:
Harvest Fill Icemaking.

1. Turning the Icemaker stop switch off (O) stops the icemaking function.

2. Setting the Icemaker switch to OFF and then turning it back on will reset the icemaker control.

Water amount
control button

Power (On/Off) Switch

- 22 -

7-2 ICEMAKER FUNCTIONS

7-2-1 Start Position

1. After POWER OFF or Power Outage, check the EJECTOR's position with MICOM initialization to restart.

2. How to check if it is in place:

- Check HIGH/LOW signals from HALL SENSOR in MICOM PIN.

3. Control Method to check if it is in place:
(1) EJECTOR is in place,

- It is an initialized control, so the mode can be changed to icemaking control.

(2) EJECTOR isn't in place:

A. If EJECTOR is back in place within 2 minutes with the motor on, it is being initialized. If not, go to Step B.
B. If EJECTOR is back in place within 18 minutes after the heater turns from ON to OFF, it is being initialized. If not, it is

not functioning. Repeat Step B with Heater and Motor off.

7-2-2 Icemaking Mode

1. Icemaking refers to the freezing of supplied water in the ice trays. Complete freezing is assured by measuring the
temperature of the Tray with Icemaking SENSOR.

2. Icemaking starts after completion of the water fill operation.

3. The Icemaking function is completed when the sensor reaches -7°C, 60 to 240 minutes after starting.

4. If the temperature sensor is defective, the ice-making function will be completed in 4 hours.

NOTE :After icemaker power is ON, the icemaker heater will be on for test for 9 seconds.

7-2-3 Harvest Mode

1. Harvest (Ice removing) refers to the operation of dropping cubes into the ice bin from the tray when icemaking has
Completed.

2. Harvest mode:
(1) The heater is ON for 30 seconds, then the motor starts.
(2) After performing Step 1 (the heater is turned OFF), the ejector will be back in place wthin 18 minutes. (Hall sensor

sign = OV). Ice removal is then complete. Then the icemaker cycles to the fill mode. The water supply fails to start, it
is not functioning. Put the heater and motor in the off position. Restart every 2 hours. (Refer to figure1)

NOTE :If the motor malfunctions and starts before the detect lever rises, MICOM regards the Ice-Removing phase as
completed. Water then starts flowing. To prevent this, MICOM doesn’t switch to water-supply mode, but restarts the ice­removing mode. If this happens 3 times, the motor is malfunctioning and you should stop the loads (heater, motor). Then
restart the Ice-Removing mode every 2 hours. (See Step 2 above.)

on

Heater

Motor

Hall IC

off

30 sec.

on

off

10 sec.

5V

0V

Icemaking sensor temperature is 10ºC or more
Maximum 18 minutes
After detect LEVER rises

2 ms

Ice removing
completion point

Figure1. Harvest mode Process

- 23 -

7-2-4 Fill/Park Position

1. Once a normal harvest mode has been completed, the water solenoid will be activated.

2. The amount of water is adjusted by pressing the Fill Key repeatedly. This changes the time allowed for fill as illustrated in
the table below.

Water supply amount TABLE

STAGE TIME TO SUPPLY INDICATIONS REMARKS

1

2

3

NOTE :Below is an example used by another vendor as an explanation of what is taking place.

6 sec.

7 sec.

8 sec.

The water amount will vary depending

on the water control switch setting, as

well as the water pressure of the

connected water line.

- 24 -

7-2-5 Function TEST

1. This is a compulsory operation for test, service, cleaning, etc. It is operated by pressing and holding the fill key for 3 seconds.

2. The test works only in the Icemaking Mode. It cannot be entered from the Harvest or Fill mode. (If there is an ERROR, it
can only be checked in the TEST mode.)

3. Caution! If the test is performed before water in the icemaker is frozen, the ejector will pass through the water. When the fill
mode begins (Stage 4), unless the water supply has been shut off, added water will overflow into the ice bin. If the control
Doesn’t operate normally in the TEST mode, check and repair as needed.

4. After water is supplied, the normal CYCLE is followed: icemaking Harvest Fill Park Position.

5. Five seconds after Stage 5 is completed, the icemaker returns to MICOM control. The time needed to supply water
resets to the pre- test setting.

Diagnosis TABLE

STAGE ITEMS INDICATOR REMARKS

Five seconds after heater starts, heater will

1

2

HEATER

MOTOR

go off if temperature recorded by sensor is
10¡C or lever is in up position.

Five seconds after heater starts, you can
confirm that motor is moving.

3

4

5

6

HALL IC

(TRAY)

SOLENOID VALVE

HALL IC

(LEVER)

Reset

Return to Status prior to
TEST MODE

You can confirm Hall IC detection of position.

Two seconds after detection of initial
position, you can confirm that valve is on.

You can check when the Hall IC is sensing a full
ice condition. (If there is a water fill error, the
fifth LED is not on.)

Five seconds after fifth stage is completed,
the icemaker resets to initial status.

7-3 DEFECT DIAGNOSIS FUNCTION

7-3-1 ERROR CODES shown on Ice Maker water supply control panel

NO DIVISION INDICATOR CONTENTS REMARKS

1

2

Normal

Icemaking

Sensor

malfunction

Mark time to

supply

None

Open or short-circuited wire

Display switch

operates properly

Make sure that the wire

on each sensor is

connected.

3

ERROR indicators in table can be checked only in TEST mode.

Icemaker Kit

malfunction

When ejector blades don´t reach

park position over 18 minutes after

harvest mode starts.

- 25 -

Check

HALL IC/MOTOR/

HEATER/RELAY

8. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM

8-1 FUNCTION

8-1-1 Function

1. When the appliance is plugged in, is set to “3” for the refrigerator. You can adjust the Refrigerator control temperature by
pressing the ADJUST button.

2. When the power is initially applied or restored after a power failure, it is automatically reset to “3”.

5

1 2

WARMER COLDER

TEMPERATURE

ADJUST

8-1-2 Defrost Cycle

Defrosting starts each time the accumulated COMPRESSOR running time is between 7 and 50 hours. This time is
determinate by how long the doors are opened.
For initial power on or for restoring power, defrosting starts when the compressor running time reaches 4 hours.
Defrosting stops if the sensor temperature reaches 50 °F (10 °C) or more. If the sensor doesn’t reach the 50 °F (10°C) in 1
hour, the defrost mode is malfunctioning. (Refer to the defect diagnosis function).
Defrosting won’t function if the sensor if defective (wires are cut or short circuited)

4

3

8-1-3 Electrical Parts Operation in Sequence.

Electrical parts such as COMP, defrost heater, freezer FAN, etc. Operate in the following order to prevent noise and parts
damage. Several parts are started at the same time at initial power on and are turned off together when TEST is completed.

OPERATING ORDER REMARKS

OPERATING ORDER REMARKS

Temperature of defrost

Temperature of defrost
sensor is 113°F (45°C)

sensor is 113°F (45°C)

INITIAL POWER ON

INITIAL POWER ON

or more .

or

Temperature of defrost

Temperature of defrost
sensor is lower than

sensor is lower than
113°F (45°C)

113°F (45°C .

POWER

POWER

ON

ON

POWER

POWER

ON

ON

0.5

0.5
Sec

Sec

0.5 Sec

0.5 Sec

0.5

0.5
Se

Se

c

c

Def-

Def-

Heater

Heater

ON

ON

COMP,

COMP,

F-FAN

F-FAN

ON

ON

COMP,

COMP,
F-FAN

F-FAN

ON

ON

10 Sec

10 Sec

Def-

Def-

Heater

Heater

OFF

OFF

- 26 -

8-1-4 Defect Diagnosis Function

1. If there is a problem, an error code will appear..

2. The buttons will not operate.

3. When the problem is repaired, the display will return to normal.

4. The error code is displayed using the LEDs.

1 2

WARMER COLDER

TEMPERATURE

3

ADJUST

5

4

• ERROR CODE on Refrigerator Temperature panel

:ON :OFF

NO Item Error Code Error Description Remarks
R2 R3 R4 R5

1 Ref. Sensor Ref. Sensor Open or Short

2 Heater Sensor Defrost Sensor Open or Short * Check each sensor

3 RT Sensor

Defrosting
4
Problem

5 F-FAN LOCK F-FAN LOCKED

locking the F-FAN

Ambient Sensor Open or
Short

Defrost time last more
than one hour and the
defrost sensor never reach

10°C or 50°F

Check FUSE-M,
DEF-SENSOR,
Drain, Heater Drive
Relay

Check if something is

- 27 -

8-1-5 TEST MODE

1. Test mode allows checking the PCB and the function of the product as well as determining the Defective part in case of an
error.

2. The test button is on the main PCB of the refrigerator (Test S/W).
3 While in the test mode, the ADJUST button will not operate.

4. After exiting the test mode, be sure to reset by unplugging and plugging in the appliance,

5. If an error, such as a sensor failure is detected while in the test mode, the test mode is cleared and the error code is
displayed.

6. While an error code is displayed, the test mode will not be activated.

MODE Key Control Operation Remarks

1) Continuous operation of the
Push the test COMP, Freezer FAN
button once and Cooling FAN. *The maximum
TEST 1 2) DEFROSTING HEATER OFF time for TEST 1

3) ALL DISPLAY ON is 5 min.

4) LAMP RELAY ON/OFF
OPERATED BY DOOR SWITCH

1) COMP OFF Ref. Temp. Display
Push the test 2) Freezer FAN and Cooling
button once while FAN OFF
in TEST MODE 1 3) Defrosting Heater ON
TEST 4) 1, 3, 5 LED ON

Operate max 1 Hr

:ON :OFF

Push the test button Reset to the default settings
Once while in TEST (Compressor will delay 7
RESET MODE 2 minutes for Power ON)

- 28 -

8-2 PCB FUNCTION

Con 1Con 3Con 2

Con 8

Con 2

Con 5 Con 6 Con 7

- 29 -

8-2-1 Power Circuit

Power is supplied to the control board at the pin 11 and 9 of connector #1. (Refer to figure 1)

CON3

123

POWER

SUPPLY

CORD

N

L

GN/YL
(GN)

GN/YL

(GN)

HEATER,

ICE SENSOR

WH

WH

1

2

CON4

CON5

PWB (PCB) ASSEMBLY, ICE MAKER

SHEATH

WH

WH

1

1

CON3

ICE MAKER PART

9 8 7 6 5 4 3 2 1 5 6 71 2 3 4

11 10

BLYLBNSB BL

SB BN YL BL BL BK

CAPACITOR PART

FUSE-M

BK

2

CON2

MM

ICE MAKER

WH
1

CON1

MOTOR

BL

2

BK

POWER

BK
1

(98 C)

S/W

RD
1

CON6

VV

I/MAKER W/VALVE

RD

BL

COMP' ACCESSORIES

FIGURE 1

CON1 CON2

BK

SB

SB BN

PK

Cr

2

Cs

4

3

P.T.C

S

5

M

6

BL

COMP' EARTH

BK

(GN)

PART

GN

/YL

OLP

DOOR S/W-R

BN

com

nc

nc

BB

AA

R-LAMP

BL

com

FUSE-M

(72 C)

RD

HEATER

SHEATH

BL

8-2-2 Load and Door Light Circuit (HV)

1. Load Drive Condition Check

To measure outputs of the control board, check voltages between the pins for the following components:
(Refer to figure 1)

Pin

Circuit

Number

Compressor Con 1 Pin 1 Con 1 Pin 3 115 VAC

Defrost

Heater Con 2 Pin 7 Con 1 Pin 3 115 VAC

R LAMP Con 2 Pin 3 Con 1 Pin 3 115 VAC

Ice Maker

Con 1 Pin 7 Con 1 Pin 5 115 VAC

NOTE: When the door of the refrigerator is left open for 7 minutes or longer, the lamp of the refrigerator turns off automatically.

Pin

Number

Output

Voltage

CONNECTOR 1

PIN 11 9 7 5 3 1

N L1

L(I/M)

N(I/M)

N COMP

CONNECTOR 2

PIN 5 7

1 3

N/C DEF-HTRN/C DOOR LAMP

- 30 -

2. Door Monitor Circuit (LV)

Refrigerator

pins 4 and 3 Con 8

Door Close 0 volts
Door Open 5 volts

Measurement between

PIN 1 2 3 4

CONNECTOR 8

RT-SNR R-DOOR S/W

8-2-3 Temperature Sensor Circuit (Refer to figure 2)

Voltage supplied to each sensor wil range between 0.5 volts -22°F(-30°C) and 4.5 volts 122°F(50°C) depending upon the
temperature in the compartments. A measurement of 0 volts indicates a short in the sensor circuit. A measurement of 5
volts indicates an open in the sensor circuit.

PWB(PCB) ASSEMBLY, DISPLAY

C-FAN

F-FAN

CON101

BN

RD

1 2 3 4 5 6

CON5

CON4

1

SB

2

BN

3

PR

4

5

GY

6

WH

7
8

9

10

2

BNRD1PK3YL4BL

11 10

PWB(PCB) ASSEMBLY, MAIN

5

6

PR

9 8 7 6 5 4 3 2 1

PRPK YL BL

CON6 CON8

RT-SENSOR

A B

WH

GYWH GY

CON7

1
2
3

4
5

6

7

8

4321

DEF-SENSOR

BO
BO
WH
WH

R-SENSOR

FIGURE 2

CONNECTOR 7

PIN 1 2 3 4 5 6 7 8 PIN 1 2 3 4

N/C N/C N/C N/C

To measure the outputs of the sensors, check the voltages between the pins as in the table. And refer the values in the
section “RESISTANCE SPECIFICATION OF SENSOR”

To measure the outputs of the fans on the control boards check the voltages between the pins for the following components:

FAN PIN NUMBERPIN NUMBER

Freezer Fan Con 4 pin 5 Con 4 pin 6
Cooling Fan Con 4 pin 2 Con 4 pin 3 10 - 14 VCD 2 VCD or less

PIN 1 2 3 4 5 6 7 8 9 10

C-FAN F-FAN N/C

N/C G V F G V N/C N/C N/C N/C

SENSOR Pin Number Pin Number

D-SNR Con 7 Pin 3 Con 7 Pin 4
R-SNR Con 7 Pin 5 Con 7 Pin 6

RT-SNR Con 8 Pin 1 Con 8 Pin 2

OUTPUT VOLTAGE

MOTOR ON MOTOR OFF

10 - 14 VCD

CONNECTOR 4

- 31 -

CONNECTOR 8

RT-SNR R-DOOR S/WD-SNR R-SNR

2 VCD or less

8-3 RESISTANCE SPECIFICATION OF SENSOR

RESISTANCE OF REFRIGERATOR &

TEMPERATURE

DEFROST SENSOR

VOLTAGE

-20 °C (-4 °F)

-15 °C (5 °F)

-10 °C (14 °F)

-5 °C (23 °F)
0 °C (32 °F)
5 °C (41 °F)

10 °C (50 °F)
15 °C (59 °F)
20 °C (68 °F)
25 °C (77 °F)

30 °C (86 °F)
40 °C (104 °F)
50 °C (122 °F)

• The resistance of the SENSOR has a ±5% common difference.

•Temperature of the SENSOR must be stabilized for minimum of 3 minutes before accurate measurement can be
taken.

• Measure the F-SENSOR, SUPER FROST SENSOR, R1, R2-SENSOR after disconnect CON5 of PWB ASSY, MAIN.

77
60

47.3

38.4
30

24.1

19.5

15.9
13
11

8.9

6.2

4.3

3.73

3.49

3.22

2.95

2.67

2.4

2.14

1.89

1.66

1.46

1.27

0.96

0.72

- 32 -

#EV#

9. EXPLODED VIEW (Better IM Ready Models)

CASE PARTS

CAUTION: Use the part number to order part, not the position number.

619B

419B

314A

328A

411A

S01

328A

307A

312A

S01

S01

412D

410G

501A

318A

501F

282X

105A

405B

304A

317A

308A

310A

327A

623H

309A

103A

307B

323B

103B

282E

282H

125D

106A

281A

S14

S01

281B

145A

145B

106A

125D

406B

B01

305B

418A

305C

120B

503C

B03

503D

282C

301A

903D

283B

282B

315A

409B

401A

120A

S01

S16

158A

103C

420A

405B

329C

319C

319A

305C

305B

-33-

S01

105F

S01

#EV#

FREEZER PARTS

CAUTION: Use the part number to order part, not the position number.

405F

330B

125A

S01

284A

131A

S22

110D

284C

332A

404A

149F

149A

405C

319E

329A

404Z

-34-

#EV#

REFRIGERATOR PARTS

CAUTION: Use the part number to order part, not the position number.

140E

143F

140B

142D

S24

140B

140D

143E

S24

S24

128B

142E

140E

S24

140B

128A

140D

170A

143E

S24

S24

140E

103E

S24

140B

167B

140D

154A

143E

S24

103E

151A

-35-

151A

155B

151C

#EV#

DOOR PARTS

CAUTION: Use the part number to order part, not the position number

200A

201A

241E

205D

205D

241C

241A

241B

233A

203A

212G

286A

210B

210A

230A

231A

281E

241C

241C

241D

286A

243A

283F

-36-