refrigerator service manual - encompass · caution: please read the safety precautions of this...
TRANSCRIPT
CAUTION:PLEASE READ THE SAFETY PRECAUTIONS OF THIS MANUAL CAREFULLYBEFORE REPAIRING OR OPERATING THE REFRIGERATOR.
REFRIGERATORSERVICE MANUAL
MODEL:LTNS16121V /00
CONTENTS
SAFETY AND SERVICE PRECAUTIONS ........................
.................................................................................................................................................................
..............................................................................................................................................
..................................................................................................................................................................................................................................................................................................................
Removing Refrigerator Door.............................................................................................................................................................................................................................................................................................................
...................................................................................................................................................................................................................................................................................................................
......................................................................................................................................................................................................................................................................................................
4. ADJUSTMENTS ...................................................................................................................................................................
..............................................................................................................................................................
...........................................................................................................................................................................................................................................................................................
.........................................................................................................................................................................................................................................................................................
........................................................................................................................Actions for LED blinking and activation current ...........................................................................................................
.................................................................................................. 6.7 LED is blinking 7 times.................................................................................................................................................... 6.8 Check compressor and harness ..................................................................................................................................... 6.9 Another electric components .......................................................................................................................................... 6.10 Problem Diagnosis Chart .............................................................................................................................................. 6.11 Refrigeration Cycle .......................................................................................................................................................
7. COMPRESSOR ....................................................................................................................................................................
...........................................................................................
9. ERRORS ................................................................................................................................................................................
10. EXPLODED VIEW ..............................................................................................................................................................
...................................................................................................... .
1. SPECIFICATIONS
2. PARTS IDENTIFICATION
3. DISASSEMBLY 3.1 Removing the Freezer Door 3.2 3.3 Switch............. 3.4 Fan & Fan Motor .. 3.5 Refrigerator Lamp ... 3.6 Control Panel Disassembly . 3.7 PCB Disassembly .
5. CIRCUIT DIAGRAM
6.TROUBLESHOOTING 6.1 Compressor activation defect ......... 6.2 Compressor service manual . 6.3 Simple verification order .. 6.4 Actions for each number of LED blinking 6.5 ... 6.6 Activation current and LED blinking 6 times .................
8. DESCRIPTION AND FUNCTION OF ELECTRONIC CIRCUIT
3
5
6
77777888
9
11
121213131414151617181920
21
22
27
52
2
3
Extension tube(load)
Con.Hen.
Hansenmaleconnector
Welding point
Service Tube Extension
Breaking point
Pressure
Vacuum
pump
gauge
SAFETY AND SERVICE PRECAUTIONS
RefrigerationSystem
Cylinder of R-134a
Figure # 4
Figure # 1 Figure # 2
Figure # 3
SAFETY PRECAUTIONSPlease read before start your service refrigerator:
1. Disconnect your refrigerator before starting the service in order to prevent electric discharge2. Check visually there's not a gas leakage or short circuit in the refrigerator.3. In case of realize tests with the connected refrigerator, use rubber gloves to prevent any accident.4. If you use any appliance, verify voltage and capacity regularly.5. Don't touch metallic parts with humid hands, they could be adhered.6. Make sure there's no water drain to electric or metallic parts.7. When the freezer door is open and you're checking the low part, be careful when you lift your head, you could get hurt.8. Remove all the glasses, metal or other freely parts when you tilt the refrigerator.9. When servicing the evaporator, wear gloves to prevent injuries from the sharp evaporator fins.
SERVICE CAUTIONS
Refrigerant Charge to CompressorTest compressor operation before recharge the refrigerant, this is important in order to detect immediately failures and assure compressor motor reliability.
If the failure has been identified, clean possible R-134a remnants' in the system breaking the end of the compressor service tube in the thinnest part (as shown in Figure #1).
Change the filter and any other damaged part. Disjoint and pull away the rest of the service tube. Put a new tube extension in the Hansen male connector. Weld the new tube (See Figure #2).
It's necessary to realize the welding process with the opened valve to allow the freely output of gasses from oil.
Use a female connector to join the new tube extension and the Hansen connector with the vacuum pump (see Figure #3).
The vacuum process to the system starts as soon as the pump starts to work. The refrigerator system must be kept under vacuum until the low pressure meter indicate Absolute 0 or -1 atm, -760 mmhg (see Figure #3). In any case, the pump must not be working for more than 30 minutes.
In case of leakage and the vacuum couldn't be realized, it's necessary to apply a small amount of Freon to the system. If the vacuum isn't achieved (the lower pressure meter doesn't indicate Absolute 0 or -1 atm, -760 mmhg) turn on the refrigerator and try to localize the leakage with a leakage locator. If you identify a welding failure, open the valve to normalize the interior pressure with the same exterior pressure before welding. The molten solder could be suctioned or expelled and block the cycle tubes if the vacuum system isn’t stabilized.
As soon as the vacuum process is finished, charge the correct refrigerant R-134a gram amount in the system. Remember, each system use an exact R-134a amount with a tolerance of ±5 grams (see Figure #4).
4
Vacuum pump
Valve must be closedafter achieving a vacuum
Chargingthe cylinder
Refrigerator
System
RefrigerantLoading tube
Valve should be openwhen refilling the gas
Figure # 5
To know the refrigerant amount that contains and that it’s necessary to be charged to the system, review the graduated scale cylinder. For example, if we have 750 grams Freon in the cylinder and we must charge 165 grams to the system, this amount will be reached when the cylinder indicator shows 585 grams. Remember that the charge indicator shows a lower lever than real. Do this after select the scale that corresponds to gas pressure indicated in the pressure meter attached in the column upper part.
Before performing this operation, make sure that the valve attached between the vacuum pump and recharge cylinder is closed in order to keep the Freon to be charged into the system (see Figure #5).
To make R-134a flow to the system, open the valve whichis attached in the cylinder base and is connected to the filling tube. The Freon gas amount must not be completely charged in one session because it could block the compressor motor; therefore, charge 20~30 grams and immediately close the valve, the pressure increase and the compressor motor start the suction, this make pressure decrease, open the valve again and repeat the previous steps until rise the established amount of R-134a gas for the system. When the system is under operation, the suction pressure must stabilize between 0.30 and 0.6 atmosphere of pressure.
1. SPECIFICATIONS
8
MODEL
LTNS16121V
Platinum Silver 3
31 (W) x 29 (D) x 71 (H)
83 KG
15.7
R134a (133 gr)
Template (N)
115V/60Hz
Fan Cooling
MICOM Control
Heater Defrost
Cyclo Pentanane
BLDC Inverter
Fin Tube
Wire
Molecular Sieve XH-7
ID Ø0.67
4 Hours
7-40 Hours
Heater, Sheath
PCM (Normal)
PET
Curved Handle
LG
4 full
"Twist" type
Yes (LED)
2 Glass
Yes (1)
No
Yes
Yes (1)
No
No
2 full
No
Glass (1)
SPECIFICATIONS
GEN
ERA
L FE
ATU
RES
Color
Dimensions (in)
Net Weight
Capacity (cu ft)
Refrigerant
Climate Class
Rating
Cooling System
Temperature Control
Defrosting System
Insulation
Compressor
Evaporator
Condenser
Egg Tray
Hygiene Filter
Water Dispenser
Drier
Capillary Tube
First Defrost
Ciclo de Deshielo
Defrost Cycle
FREE
ZER Basket
Lamp
Shelf
FRID
GE
Case Material
Door material
Handle Type
Internal Graphics
Basket
Ice Tray
Lamp
Shelf
Vegetable Drawer
Meat Tray
Cover TV (Tray Vegetable)
NOTE: Your refrigerator could have some or all of the features and parts listed below. The location of someof the parts may not correspond with your model.
2. PARTS IDENTIFICATION
Freezer Shelf (Glass)
Moving Twist’n Serve (Ice Maker)
Internal Temperature Control (Refrigerator)
Refrigerator Lamp (LED)
Refrigerator Shelf (Glass)
Magic Crisper,Cover for vegetable drawer, it controls humidity
Vegetable Drawer,Keeps fruits and vegetables fresh
A
6
I
J
K
L
K
H
A
B
C
F
G
D
E
M
I
Leveling Screws
Freezer Big Basket
Temperature Control (Freezer)
Refrigerator Big Basket
Multi Flow Air Duct,Distributes air to all refrigerator compartments
Egg Tray
B
C
D
E
F
G
H
J
K
L
M
I
3. DISASSEMBLY3-1. DOOR
7
Freezer Door Remove the top-hinge cover by using a Phillips screwdriver. 1.
Remove the middle hinge bracket.2.
Counterclockwiseto remove
Remove the three bolts with either a 10 mm or 3/8 in. socket wrench, and lift off the top hinge. Set the parts aside.
2.
Top Hinge
Carefully lift up the freezer door from the middle hinge bracket. Place the door on a non-scratching surface.
3.
Hinge Pin
Middle Hinge Bracket
Carefully lift up the refrigerator door from the bottom hinge pin. Place it on a non-scratching surface.
3.
Bottom HingePin
3-2. DOOR HANDLERemove the top side of the handle by using a flathead screwdriver.Using a Phillips screwdriver, remove the screws that are attached to the door.Pull out the handle to remove.
1.
2.
3.
Loosen and remove the two bolts with the socket wrench.1.
Middle HingeBracket
Bolt
Refrigerator Door
NOTE: Place the top hinge cover on the cabinet and make sure do not damage the wires assembled to it.
Handle TopSide
8
3-3. DOOR MAGNETIC SWITCH
1 2
3-4. DOOR GASKETTo remove the door gasket, pull it out from any corner untildetaching it. Keep pulling it until remove it from all framedoor.
3-5. DOOR BINSThe door bins are removable for easy cleaning and adjustment.1. To remove the bin, simply lift the bin up and pull straight out.2. To replace the bin, slide it in above the desired support and push down until it snaps into place.
3-6. SHELFS
To remove the door switch, remove it with a screwdriveras shown in below figure.
1.
Disconnect the lead wire from the switch.2.
1. Lift the back of the shelf from below.2. Use enough force to lift the shelf and release it from the holders.3. Slide the shelf forward to remove it completely.
Shelf
1
Holder2
Shelf
3
1. Ice bin must be removed in order to remove ice tray2. Once ice bin is removed, pull out ice trays.3. Fill ice trays to the indicated level.
4. Icemaker can be moved from one side to the other to suit your individual storage needs.
1
2
Ice Bin
Ice Trays
3
3-7. ICEMAKER
P/No & MFG Image
3.8 COMPONENTS: MAIN PCB
EBR808608**
9
CON1: Power SourceCON2: AC loadCON5: F-Fan Motor DCCON6: DisplayCON8: Sensor, R-Door Switch, R-LED LampCON9: PCB Assembly Smart Buzzer (SDS)CON102: OLP InverterCON201: Compressor Terminals
CON1
CON201
CON8 CON9
CON5
CON6
CON2 CON102
P/No & MFG Image
3.8 COMPONENTS: LED LAMP (REFRIGERATOR AND FREEZER)
RefrigeratorLED LampEAV61472005
Smart Buzzer EBR64730409
10
PCB for SDS (System Diagnosis Intelligent)
3-11. PCB To replace the PCB, you must first remove the connectors that are connected, you should just press on the lock to remove. The case PCB that is holding PCB has a lock for secure it, for disassembly pull out the lock applying som force (as shown in the image above)while removing PCB. To assemble the new PCB, do the same inreverse (the cables can not possibly be assembled in an incorrectconnector).
11
5
3-9. FAN MOTOR AND FAN 1. Remove the shelves from freezer compartment.2. Loose the screw placed in fan grille (use a Phillips
screwdriver ).3. Hold the upper side of the shelf and pull it out carefully .4. Remove the plastic cover from the fan by pulling it put
carefully .5. Unplug the wires.6. Loose the two screws that hold the motor support and pull
it out in order to remove the fan and fan motor .7. Remove fan from motor support .
12
3
45
1 22
3 4
5
3-10. CONTROL PANEL DISSASSEMBLY1. Remove refrigerator shelves.2. Loose and remove the screw placed in the lower side of the
panel.3. Take the panel from the lower side and pull it out in order to
remove it from refrigerator.4. Press the connectors to release them.
1 2 3
3-12. PCB DISSASSEMBLY 1. Loose the screws from the cover.2. Remove the cover
1
2
12
3-12. PCB DISASSEMBLY3. Disconnect all the terminals.4. Remove the PCB by pressing the hooks placed on
lower side.5. Remove and replace the PCB (just if it’s necessary).
3 4
5
FREEZERCOVER DEFROST CONTROL
3-13. DEFROST CONTROL
1. Remove freezer cover, then take out the grill fan.2. Disconnect the wire that is connected to the defrost controlassembly and replace it (just if it’s necessary).
3-14. CYCLE SYSTEM
For access to cycle system, remove the screws attached to theback cover, then remove it.
For removing the Drip Tray1. Remove the screws attached to the tray.2. Remove the fan.3. Loose the guide fan.4. Remove the guide fan.
1 2
3 4
5. Remove the pipe drain.6. Remove the screws from the condenser bracket.7. Carefully pull out the condenser for removing it from the
support and lift it.8. Remove the drip tray to the left side in order to release
the locks placed on its bottom side.
5 6
7 8
The defrost control assembly consists of a sensor and a malleable fuse that opens with heat. The sensor function is to control the temperature and automatically finish the defrost, the transmitter is placed on one side of the metal part of the evaporator. The malleable fuse is a safety device for prevent-ing overheating of the melt strength when working. At a temperature of 77 ° C the fuse opens and the resistance stops emitting heat.
13
1 2
3 4
1
9. Disconnect the power source of the motor.10. Remove the motor from the tray using a screwdriver.11.Remove it carefully for avoid the pipes to colapse.12.Lift the condenser and place carefully the new tray.
NOTE: For assembly the new tray, follow follow in reverse the above steps.
For removing or replacing the motor1. Disconnect the power source.2. Remove the screw from the guide fan.3. Remove the guide fan (release the locks placed on its bottom
side).4. Remove the fan.
5. Quite los tornillos que sujetan al motor.6. Retire el motor y reemplacelo.
9 10
11 12
5 6
For removing or replacing the fan motor1. Disconnect the power source.2. Remove the screw from the guide fan.3. Remove the guide fan (release the locks placed on its bottom
side).4.Remove the fan.
1 2
3 4
NOTE: For assembly the motor, follow follow in reverse the above steps.
NOTE: For assembly the new tray, follow follow in reverse the above steps.
5. TROUBLESHOOTING
5.1 COMPRESSOR ACTIVATION DEFECT
15
1
Indicator LED for errors ofInverter Compresspr
1. Open the cover of Main PCB.
2. Check the number of LED that are blinking (Refer to next chapter, Actions for each number of LED blinking).
3. Open the back cover.
4. Check temperature of discharge pipe and compressor.5. Check if fan freezer is working.6. Check the disconnection between OLP and compressor (U, V, W= Red, Blue & Yellow).
Check the performance after forcing it in TEST MODE in the PCB and readjust the power after checking the voltage in thecompressor side.
Location of Test Mode Buttonon main PCB
2
3
4
5
6
5.2 COMPRESSOR SERVICE MANUAL
5.3 SIMPLE VERIFICATION ORDER
1. Check LED Remove the PCB cover and check the number of blinks that are on the LED. Verify the actions for each number of LED blinking � Check when it is not RESET (before turning off the refrigerator). Write the service information according to the quantity of LED blinking. Write the service information and check again after power reset.
� Refer to the actions for each number of LED blinking.
Is LEDblinking?
Leakage
There’s no cold air
Check again
Reset
ResetLED blinks 1 time
Yes
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes Yes
Reset
Reset
LED blinks 7 times
LED is bliking6 times
ReplaceCompressor
Replacemain PCB
Checkagain
Heavy repair
Is compressorworking?
CheckCompressor(Check C)
IPM Output>
80V-20%
16
CheckCompressor(Check C)
Is compressorworking?
Leakage
Checkagain
Replacemain PCB
Replacemain PCB
LED blinks 1 time
LED blinks 7 times
LED is bliking6 times
Heavy repair
5.4 ACTIONS FOR EACH NUMBER OF LED BLINKING
LED 6 times repeated
Blink Blink Blink Blink Blink Blink Off Blink Blink Blink Blink Blink Blink Off
1
LED 7 times repeated
Blink Blink Blink Blink Blink Blink Blink Off Blink Blink Blink Blink Blink Blink Blink Off
2
LED 1 time repeated
Blink Off Blink Off Blink Off Blink Off Blink Off Blink Off Blink Off Blink Off Repeated
3
No. LED Operation Status Cause Service Tips
AD OffsetError
Circuitovercurrent
error
PCB Defect(IPM)
1. Check normal operationafter power reset.
2. If the same error occursagain, replace PCB.
Repeated
Repeated
5.5 ACTIONS FOR LED BLINKING AND ACTIVATION CURRENT
1. LED blinking 1 time (AD Offset Error)
Purpose: Detect motor voltage or current detection defect. Actions: Check CC326 voltage, if it’s out of the range 2.2~2.8V, PCB must be replaced.
Blink OFF Blink OFF
Checkprotection
logic
Replace PCB
Power reset
Is it out of specification?(2.2-2.8V)
LED blinks 1 timeAD Offset Error
Yes
No
17
4
LED 8 times repeated
Blink Off RepeatedBlink Blink Blink Blink Blink Blink Blink Blink OffBlink Blink Blink Blink Blink Blink Blink
1. Check normal operationafter power reset.
2. If the same error occursagain, replace PCB.
3. If the same error occurstwice, replace compressor.
1. Check normal operationafter power reset.
2. If the same error occursagain, replace PCB.
1. Check normal operationafter power reset.
2. If the same error occursagain, replace PCB.
CommunicationError
Cause: PCB with short circuit, defect part detection.
Activation current and LED blinking 6 times (Activation Current) .2
Blink Blink Blink Blink Blink Blink OFF
CC326
18
6 times blinking (activation current) may occur in a temporal disconnection situation like when refrigerator is turn on/off for 3minutes.
1. If it’s blinking 6 times but there’s no a significant difference between the temperature inside the refrigerator and the settemperature, there’s no problem in PCB, Compressor or refrigeration cycle2. If it’s blinking 6 times and problem such as no cooling occurs, it means cycle leakage or cycle clogged (moisture, trash).
Cause: Cycle leakage or clogging, excessive increase in compressor temperature, compressor piston is locked, PCB IPM,device is burned due to condenser fan defect.Cause: Over-current protection.Action: Check PCB output, verify compressor operation, leakage inspection and check cycle clogging (for re-vaccum, 30minutes in additional vaccum).
Checkprotection
logic.
Check current or LED that is blinking 6 times (current trip)
Intermittentoperation of compressor
Check PCB output
Checkcompressor
defect
Replacecompressor
Check inspection procedure again
Did current trip occur?
PowerReset
Replace PCB
Check harness PU.V.W.
Modify harness P
Yes
Yes
Yes
Yes
No
No
NoNo
Check PCB output
3. LED is blinking 7 times (IPM Fail)
U
Ground
19
Cause: IPM with short circuit, defect (burned or damaged).Purpose: Protection of the over-current caused by IPM with short circuit or defect.Actions: Visual verification of burned IPM when the compressor is not operation. Check if there’s a short circuit in U, V, o W.Replace PCB.
U part among 3 compressor phases connectors (CN201)Ground
Replace PCB
Check protection
logic
Check IPM Fault orLED blinking 7
times(IPM Fault)
Compressor is not activated
Powerreset
Check again inspection procedure
Visualverification of
IPM burnCheck Point A shortcircuit IPM output
>80V-20%
Yes
YesNo
No
5.6 CHECK COMPRESSOR AND HARNESS
Freezing capacity is poor
20
5.7 ANOTHER ELECTRIC COMPONENTS
U W
VMultiTester
U W
V
Compressor Terminal
Motor resistance
7.96 +/- 0.8
Compressor
BMA069LAMV
� Measure the resistance of compressor connector (Power & Common).� Verify isolation resistance: Measure the resistance between the COMP power connector and the ground connection.
Resistance values can vary some according to the environment temperature and the operation conditions.
Note: Check resistance by disconnecting PCB connector
Poor contacting.
In short circcuit
Fan motor is notworking
Check that current is flowing in door switch.
Check that current is flowing in the fan motor.
Coil is making short circuit
Replace eachcomponent
Check the current flow in the next components:���������� ���������
Check the current flow in the next components:����� ����� ������ ����
Big amount of ice is placed in the evaporator
Replace eachcomponent
Replace eachcomponent
5.7 ANOTHER ELECTRIC COMPONENTS
21
Short
Poor and/or opencontact
Increase voltage Low voltage
Replace eachcomponent
Cause
Coil is shorted
Damaged contact
Short
Compressor coil
Low capacity
a. Starting components Short circuit or open.
Freezing capacity is poor
Check initial voltage
Check OLP capacity
Items already describedare OK?
Check if current is flowingto other components
Check OLP capacity
Check current flowingin fan motor
Fan motor is not working
Heavy frost build upon Evaporator
Replace eachcomponent
Replacecompressor
Replace eachcomponent
Replace eachcomponent
Compressor isnot working
Check if the power flowsto the next components:
Poor contact or shorted.
Coil is shorted.
Poor contact or shorted.
Compressor is notworking efficiently
Check if current is flowingto compressor coils.
Compressor coil
Short circuit parts
Check that current flowsin the next component:- Def control assy
Check that current flowsin the next components:- L-Cord- Heater Plate
Replace eachcomponent
Freezing capacity is not posible
5.8 PROBLEM DIAGNOSIS CHART
22
Repair the cycle
The cycle is not
Check therefrigeration system
Check if humidity is
compartment
Not defrosting
Replace the components
of the defrosting circuit
PROBLEM
Freezing is not possible
CHECK POINTS SOLUTION
¿Is the power cord unplugged from the outlet?Check if the power switch is set to OFF.Check if switch fuse has short circuit.Measure the voltage of power outlet.
There are abnormalnoises.
Freezing is poor (notenough).
Freezing is notefficient.
Food in refrigeratorcompartment is freezing.
Humidity or ice areinside refrigeratorcompartment.
Humidity is formedin cabinet (refrigerator
Door closing is noteasy.
Ice and food have anunpleasant odor.
For other possible problems, make reference to the next points in order to solve problems:
Check if the refrigerator is placed so close to the wall.
Check if the refrigerator is placed so close to the stove,gas oven and sunlight.
¿Is the ambient temperature high or the door is closed?
Check if hot foods have been recently stored.
¿Was the door continuously open or was not properlyclosed?
Plug to the outlet.Set power switch in ON position.Replace with a normal fuse.If the voltage is low, report this condition with your
Leave a clearance of 10 cm between refrigerator and
Place your refrigerator away from heat sources.
Decrease temperature in the room.
Storage the food when is already cold.
Do not open the door so often and close it firmly.
Ambient temperature is too low (10° C)..
¿Is there food placed in the cooling air outlet?
Check if the temperature control is set in 3.
¿Is liquid food storage?Hot food was placed inside the refrigerator.The door was continuously opened or it’s not properly
If the humidity and the ambient temperature are high.
There’s a gap between the door gasket and the cabinet.
¿Is the unit placed over a firm and even surface?¿Is there any unnecessary object placed in the back sideof the refrigerator?Check if the drip tray is not firmly fixed.Check if the compressor cover is properly is in itscorrect position.
Check if the door gasket is clean.¿Is the appliance placed on proper floor conditions?¿Is there a big amount of food inside the refrigerator?
Check if the inside of the unit is dirty.Foods with a strong odor were not properly wrapped.It smells like plastic.
For a cooler freezer you must set the temperature ina position between 2-3 and set the refrigerator controlin position 7.
Place the food in the high-temperature section(front part).Set the control in 2.
Seal the food with vinyl wrap.Store food when is already cold.Do not open the door so often and close it firmly.
Wipe moisture with a dry cloth. It will disappearin low temperature and humidity.
Repair the gap by changing the door gasket.
Adjust the leveling screws and place it in a firm place.Remove the objects.
Fix the tray in its original position.Place the cover in its original position.
Clean door gasket.Place over firm door and adjust the leveling screws.Check that the food is not blocking the doors.
Clean the inside of the unit.Wrap all the foods with a strong odor.New products usually smell like plastic, but thiscondition disappears 2 weeks later.
electrical company.
walls.
closed
exterior).
working
formed in freezer
5.8.1 TEMPERATURE SETTINGS CHART
The next table explains to you the recommended temperature adjust in relation with food amount:
23
Food Amount erutarepmeT rezeerF* erutarepmeT rotaregirfeR
When a large amount of food is stored you need to adjust the controls in the coldest temperature (for refrigerator) and normal temperature for freezer compartment.
To reach a colder temperature verify that the lastLED is turned on.
Adjust the control in position number 3.
When you store a regular amount of food, both controls must be adjusted in middle position.
To adjust in a medium temperature you must verifythat third LED is on.
Adjust the control in position number 3.
For a refrigerator with a low amount of food, it’s necessary adjust the controls in the less cold positions.
For a less cold temperaturlight is on.
e verify that only the �st
Adjust the control in position number 1.
* Refrigerator control may vary according to y��������������� ���
)
2
2
2
)
)
PI ZZA!
LEC
LEC
SODA
SODA
SODA
Jug
Helado Helado
YogurthYogurth
Mantequilla
CARNE CONGELADACARNE CONGELADACARNE CONGELADA
P I ZZA!
LEC
SODA
SODA
Jug
Helado
Yogurth
Mantequilla
CARNE CONGELADACARNE CONGELADA
LEC
SODA
Helado
Yogurth
Mantequilla
CARNE CONGELADA
5.9 REFRIGERATION CYCLE
Troubleshooting Chart
Leakage Detection Observe the discharging point of the refrigerant in the compressor and evaporator.
Compressor starts working?
Yes
Check electricalconnections
No
Check status for
PTC & OLP
Se forma escarcha en evaporador
Se forma escarcha en evaporador
Escarcha en todo el evaporador
Clogged bymoisture
Hacer barrido a tuberías para limpiar el sistema
Hacer barrido a tuberías para limpiar el sistema
No se forma escarcha o solo en la entrada del evaporador Existen fugas
de aceite
SiGas leakage Detect leakage
and repair it
No
Breakeservice tube
Observar cantidad de refrigerante expulsado
Cantidad normalCompressor
with failures
Removecompressor
Hacer barrido a tuberías para limpiar y/o remover residuos de humedad del sistema
Cambiar Drier
Hacer barrido a tuberías para limpiar y/o remover residuos de humedad del sistema
Cambiar Drier
Install compressor(new or repaired)
Hacer vacío al sistema y cargar refrigerante
Hacer vacío al sistema y cargar refrigerante
Nada o poca cantidad
IF the problempersists
Start
Hacer barrido a tuberías para limpiar el sistema
Cambiar Drier
Start
Hacer vacío al sistema y cargar refrigerante
Hacer vacío al sistema y cargar refrigerante
Hacer barrido a tuberías para limpiar el sistema
Cambiar Drier
Hacer vacío al sistema y cargar refrigerante
Hacer vacío al sistema y cargar refrigerante
24
PARTIALCLOG
COMPLETECLOG
CLOGGED BYMOISTURE
NO
CAUSE
PARTIALLEAKAGE
STATE OF THE UNIT
COMPRESSORTEMPERATURE
STATE OF THE EVAPORATOR
REMARKS
COMPLETELEAKAGE
Cooling operationstops running periodically.
There’s no compression work.
A few amount of refrigerant has beendischarged.Normal cooling is possible when a regular amount of refrigerant has beencharged.
Normal discharge of refrigerant.
Normal discharging of the refrigerant.
The capillary pipe is faulty.
No discharging refrigerant
COMPRESSION
The pressure of the high pressure section of the compressor is low.
There’s no pressure in the highpressure section of the compressor.
LEA
KA
GE
SC
LOG
GE
D B
YD
US
TD
EFE
CTIV
EC
OM
PR
ES
SIO
N
Freezer compartment and refrigerator
don’t cool normally.
Low flowing sound of refrigerant is heard and frost forms in inlet
only.
A little higher thanambient temperature.
Freezer compartment and refrigerator never
cool normally.
You cannot hear the sound of the refrigerant flow and the frost
is not formed.
Equal to ambient temperature.
Freezer compartment and refrigerator do not
cool enough.
You can hear the sound of the refrigerant flow and the frost is
only formed in the inlet.
A little higher thanambient temperature.
Equal to ambient temperature.
A little higher thanambient temperature.
Equal to ambient temperature.
Lower thanambient temperature.
You can hear the sound of the refrigerant flow and the frost is
not formed.
You cannot hear the sound of the refrigerant flow and the frost
is melting.
Low flowing sound of refrigerant is heard and frost forms in inlet
only.
You cannot hear the sound of the refrigerant flow and the frost
is not formed.
Freezer and Refrigeratorare not cooling
Freezer and Refrigeratornever get cold.
Normal cooling is possible when a regular amount of refrigerant has beencharged.
Cooling operation restarts whenheating the inlet of the capillary pipe.
COMPRESSION
Start
Start
Start
Detect leakageand repair it
Gas leakage
Soldadura de Plata (Composición Química) Ag (Plata): 30%, Cu (Cobre): 27%, Zn (Zinc): 23%, Cd (Cadmio): 20%Temperatura de soldadura: 710 ~ 840 °C
CBCuP2 Soldadura de Cobre (Composición Química)Cu (Cobre): Alrededor de 93%, P (Fosforo): 6.8~7.5%Resto: un 0.2%Temperatura de soldadura: 735 ~ 840 °C
ComposiciónBorax (Borato de Sodio): 30%Borax (Borato de Sodio): 35%Fluoruro de Kalium: 35%Agua: 4%
PreparationMix all the ingredients
Ensamblar el secador (drier) inmediatamente después de su desempaque.Mantener el secador (drier) desempacado a una temperatura de 80 ~ 100 °C.
Realizar el vacío en el sistema hasta que el valor sea menor a 0.05 torr.
La presión del aire seco deberá estar entre 12~16 kg/cm².La temperatura deberá estar entre 20 ~ -70 °C.
Check leakages using water and soup.Replace cople (in case of leakage).
Place all copper connecting pipes in a clean box and close it well to prevent dust and moisture from entering.
5.10 CONTROL GENERAL DEL CICLO DE REFRIGERACION
ObservacionesContenidos y EspecificacionesTemas.oN
2 Flux
3 Drier assembly
4 Vacío
5 Aire seco y gasde Nitrógeno
6 Niple y Cople cople.
7 Pipes
1 Welding rod
26
Se recomienda H34 conteniendo un 34% Ag en el centro de servicio.
Preparar solo la cantidad diaria.Life time: 1 day.Cerrar la cubierta del contenedor para evitar que la suciedad se mezcle con el flux.Store inside a stainless steel container.
Utilizar un medidor de vacío sin fallas.Llevar acabo la operación de vacío apropiado hay que checar fugas en la linea de ciclo y en la conexión del adapta-dor.Si no alcanza un grado de vacío apropiado, hay que checar fugas en la línea de ciclo y en la conexión del adapta-dor.
Keep the drier in a dry place, keep it awayfrom humid places.
U W
Terminal Compresor
Multitester
B OLP
C
6. COMPRESSOR6.1 How to find out Inverter BLDC Compressor defectIf Inverter BLDC Compressor defect occurs, you can check in the following order.
Standard for judging normality�������� ������� �������������������������� ��� �������o!������ ��$������<�@���[\]^_!`���� ������� �����������shows the value of the level in the following figure, you can say that it is normal.
Standard for defining compressor defect Disassembly compressor PTC cover and verify that is correctly ����� ��� �������� ���������<�� ��!`������{�����
the figure, if it’s correctly connected you must check directly the compressor resistance for doing so you have to disconnect ���������� ����������������|�}� {���� ��� �����������V`����, V��!����� ’��������$���������� ����������^���[���!`� ���������}������������}���������$���[�P. During compressor defects diagnosis, through resistance measu���� `�����������}� {���� ���������`�V`����� �������� �
�[\]^_��<�� A) show the resistance value according compressor specification then the compressor motor is correct.�����|� �� � ���[�P� ���������<�� �@!������� �������� ��, if it’������������� ��������[�P resistance between its
terminals. If the resistance value is 5 or lower, it’s normal condition. In case that the value is higher̀ � ���[�P is damaged and as consequence there’s no voltage supply from PCB and compressor will not work; it’���������������$��[�P and check again the correct performance. If there’��������� �������[�P resistance values issues, it could be compressor defect, check the compressor resistance.
If there’s no problem with compressor resistance value, it could be Main PCB defect, you must check Main PCB defects section.
Caution_� Turn off the refrigerator and make sure is unplugged, if you are going to perform some measures wait few minutes after the device was unplugged.]����� ����������� ��������������� ��������� ���� `�� ������be a wrong diagnosis due to the resistance may vary according to the ambient temperature or operation conditions.
VCON 201A
Multitester
U W
VMultitester
Motor Resistance
���������^���
Compressor
@��^������
A difference of some can occur in the resistance value due to ambient temperature and operation conditions.
]�
TempLow / Middle Middle / HighControl Low Middle High
TEMP(ºC)
COMPARTMENT REFRIGERATOR
: ON :OFF
7-1. FUNCTION
27
1. When the appliance is connected, the temperature is set in the middle setting. Every time the button is pressed the displaychanges as follows: “R2”
2. When there’s a power interruption, the temperature will be set in the last selected temperature.
R0 R1 R2 R3 R4
7. DESCRIPTION AND FUNCTION OF ELECTRONIC CIRCUIT
7-1-1 TEMPERATURE CONTROL FUNCTIONING
SOUND
Closed Open
1 minute 30s 30s 30s
3 times 3 times 3 times 3 times
Freezer and refrigeratordoors are open
Less than 1 minute
OpenClosed Closed
Door alarm LEDTurn on Turn off
28
7-1-2 CONTROL OF FREEZER COMPARTMENT FAN1.- When the freezer or refrigerator doors are open, the fan motor will be on for 60 seconds.
7-1-3 OPEN DOOR ALARM1. If the door is left open for more than 1 minute, the alarm will sound 3 times in thirty seconds intervals.2. This function makes sound the alarm every time that one door is left open for more than 1 minute. 3. The sound of the alarm will stop when the door is closed.
7-1-4 “DING” SOUND
7-1-5 DEFROST
1. When a button is pressed on the display, a “ding” sound will be heard.
1. For the initial turn on, only for unique time, the defrost begins when the compressor reaches 4 hours of being turned on.
2.The defrost begins when the accumulated turned on time of the compressor is between 7 and 50 hours. This time isdetermined by the frequence and duration of the refrigerator doors opening.
3. The defrost stops when the sensor temperature reaches 13°C or more. If the sensor does not reach that temperature in aperiod of 2 hours, the defrost mode will not work properly.
4. The defrost process does not work if the sensor is damaged (if the wires are cut or short circuit).
0.5 secondsConect Compressoris working
OperationConditions
OperationSequence
Whe
n th
e re
frig
erat
or is
turn
on 0.5 seconds Freezer
fan is on
0.5 minutesAll loadsare off
Compressoris on
0.5 seconds Freezer fanis on
If the temperature of thedefrosting sensor is 45 °C or above (for theinitial use after the purchase or grounding).
If the temperature of the defrosting sensor is below 45 °C (after a power failure or SVC).
When is returned fromTEST MODE.
29
7-1-6 OPERATION SEQUENCE FOR ELECTRIC COMPONENTSThe electric components operation such as compressor, defrost resistance and fans is sequently started in order to avoid noisesand damages in the parts, this can result when several components are running at the same time or after a test has finished.
5s0.5sTurn onrefrigerator
Defrost heater is on
5.5sCompensationresistance is on
Compressorand Freezerfan are on
4min
0.5sDefrost heater is off
Compensationresistance is off
: ON :OFF
No ErrorError shown on display
Cause R0 R1 R2 R3 R4 Compressor / Fan Defrost Heater
1.
2.
3.
4.
15 min ON/15 min OFF
No defrosting
Operation Status with error
Al presionar botón de ajuste porun segundo.
30
7-1-7 ERRORS DIAGNOSIS MODE
1. The error diagnosis function allows to the technician or service center see if a failure is affecting product performance duringits normal operation.
2. The refrigerator has a failure when the button is and the LED on does not change position.3. When the problem has been solved and the refrigerator is working again, the error will disappear.4. The error code is shown in temperature indicator (LED where the refrigerator temperature is adjusted).
Failure on refrigeratorsensor (placed insiderefrigerator control box)
Failure on defrostsensor.
Short circuit, non continuouswires of refrigerator sensor.
Failure on ambienttemperature sensor.
Failure on defrostoperation.
Short circuit, non continuouswires of defrost sensor.
Short circuit, non continuouswires of temperature ambientsensor.
- M-Fuse open- Defrost heater is open or broken- Heating relay is broken- Blocked drain
5.
6.
Failure on Fan Motorat Freezercompartment
Failure on Fan Motorat mechanic room.
If there is no motor signal (motor could be locked)
If there is no motor signal (motor could be locked)
7-1-8 TEST MODE
.
31
The test mode allows checking the PCB and the function of the product as well as finding out the defective part in case of anerror.The test button is on the main PCB of the refrigerator (Test S/W).The Test Mode will be finished in 5 minutes in Test Mode 1 and it will last 2 hours in Test Mode 2 or until the defrost sensor reaches a temperature of 13°C (55.4 °F) or more, after this the original conditions are set again.While the Test Mode is in process, the tone of the button for temperature adjustments won’t be able.After you leave Test Mode, make sure of unplugged the refrigerator.In case of an error, such as sensor failure, and if it’s detected during the Test Mode, the error code will be display in the LEDerror indicator.While an error is detected, the Test Mode will not be activated until the error disappears from display.Test Mode for LED: When the temperature button is pressed for more than 1 second, each LED on display will be on simultaneously. When you stop pressing the button, the Test Mode will be off.
MODE
RESET
TEST MODE 1
ACTION1. Continuous operation of compressor.2. Continuous operation of freezer fan.3. Defrost heater is OFF.4. All LEDs on display are ON.
1. Compressor is OFF.2. Freezer fan is OFF.3. Defrost heater is ON.4. LED #1, #3 & #5 are ON.
Reset to the original conditions.
Press Test Mode button.
Press once more the Test ModeButton while you are in Test Mode 1.
Press once more the Test ModeButton while you are in Test Mode 2.
CONTENT REMARKS
Reset if the defrost sensortemperature is 13 °C ormore.
The compressor will startworking after 7 minutes.
<LED status for Test Mode 1> <LED status for Test Mode 2>
: ON :OFF
TEST MODE 2
TEST MODEBUTTON
7-2 RESISTENCE, VOLTAGE & SPECIFIC TEMPERATURE FOR SENSORS
°C °F-26.0 -14.8 104.60 4.00-24.0 -11.2 94.30 3.92
-22.0 -7.6 85.14 3.83
-20.0 -4.0 76.96 3.73-18.0 -0.4 69.66 3.64
-16.0 3.2 63.13 3.54
-14.0 6.8 57.29 3.44
-12.0 10.4 52.05 3.33-10.0 14.0 47.34 3.22
-8.0 17.6 43.12 3.12
-6.0 21.2 39.31 3.01-4.0 24.8 35.88 2.89
-2.0 28.4 32.79 2.78
0.0 32.0 30.00 2.672.0 35.6 27.47 2.56
4.0 39.2 25.19 2.46
6.0 42.8 23.12 2.35
8.0 46.4 21.24 2.2410.0 50.0 19.53 2.14
12.0 53.6 17.98 2.04
14.0 57.2 16.57 1.9416.0 60.8 15.28 1.85
18.0 64.4 14.10 1.75
20.0 68.0 13.03 1.6722.0 71.6 12.05 1.58
24.0 75.2 11.16 1.50
26.0 78.8 10.34 1.42
28.0 82.4 9.59 1.3430.0 86.0 8.90 1.27
32.0 89.6 8.26 1.20
34.0 93.2 7.68 1.1436.0 96.8 7.15 1.08
Voltage (V)*Resistence (k )Temperature
REMARKS:1. The sensor resistance has a variation of + 5%2. Sensor resistance measurement must be done after 3 minutes since the sensor has been exposed to that temperature,
this is necessary for getting a reliable value.3. For checking voltage, make sure of connection for PCB connector.
Sensors “R” y “D”
32
°C °F-26.0 -14.8 104.60 4.56-24.0 -11.2 94.30 4.52
-22.0 -7.6 85.14 4.47
-20.0 -4.0 76.96 4.43-18.0 -0.4 69.66 4.37
-16.0 3.2 63.13 4.32
-14.0 6.8 57.29 4.26
-12.0 10.4 52.05 4.19-10.0 14.0 47.34 4.13
-8.0 17.6 43.12 4.06
-6.0 21.2 39.31 3.99-4.0 24.8 35.88 3.91
-2.0 28.4 32.79 3.83
0.0 32.0 30.00 3.752.0 35.6 27.47 3.67
4.0 39.2 25.19 3.58
6.0 42.8 23.12 3.49
8.0 46.4 21.24 3.4010.0 50.0 19.53 3.31
12.0 53.6 17.98 3.21
14.0 57.2 16.57 3.1216.0 60.8 15.28 3.02
18.0 64.4 14.10 2.93
20.0 68.0 13.03 2.8322.0 71.6 12.05 2.73
24.0 75.2 11.16 2.64
26.0 78.8 10.34 2.54
28.0 82.4 9.59 2.4530.0 86.0 8.90 2.35
32.0 89.6 8.26 2.26
34.0 93.2 7.68 2.1736.0 96.8 7.15 2.08
TemperatureResistence (k ) Voltage (V)*
7-2 RESISTENCE, VOLTAGE & SPECIFIC TEMPERATURE FOR SENSORS
Sensors “RT” (Ambien Temperature)
33
REMARKS:1. The sensor resistance has a variation of + 5%2. Sensor resistance measurement must be done after 3 minutes since the sensor has been exposed to that temperature,
this is necessary for getting a reliable value.3. For checking voltage, make sure of connection for PCB connector.
7-3 RESISTANCE (HEATERS) VALUES CHART
Defrost resistance value.
“DEF
Diagram
Capacity Voltage Resistance Value�16 cu ft
�
34
Capacity Voltage Resistance Value16 cu ft
Isolation resistance value.Defrost resistance
Isolation resistance
Capacity Voltage Resistance Value16 cu ft �
Check resistance between blue and brown connectors for CON2.
Defrost resistance values.Check resistance between red connectors.
Defrostresistance
IsolationResistance
DefrostResistance
Relay
7-4 HOW TO REMOVE TERMINAL POSITION ASSURANCE (TPA)
REMARK: After finishing with the measures, TPA must be assembled.
<DC TPA>
Lift up T.P.A.Press right hook. Press left hook.
35
1 2 3
7-5 COMPONENTS LOCALIZATION ON PCB
P/N EBR808608
8. TROUBLESHOOTING FOR PCB8-1. CONTENTS
- Refrigerator Sensor Error- Defrost Sensor Error- Ambient Temperature Sensor Error- Defrost Operation Failure- Freezer Fan Error.- Condenser Fan Error- LED is not working (Multiduct)- Poor cooling on refrigerator compartment- Excesive cooling on refrigerator section
Troubleshooting
36
- Refrigerator Sensor Error
1
No Checking Result and SVC countermeasure
Result SVC Support
Connected Go to step 2.
Loose
2
0 Short Go to step 3.
OFF Open
Other Normal
3
Check if there’s a connector loose on CON8.
0 Short
OFF Open
Otro Valor Normal
37
Connect firmly and check again. Is there a problem?Yes: Go to step 2.No: Explain to customer.
Unplugged the refrigerator and all the PCBconnectors, check the resistance betweenwhite wires for CON8.
Check temperature and resistance(see chart of section 7-2).Go to step 4.
Change harness from multi duct,if it’s necessary.
Result SVC Support
Result SVC Support
1. Check temperature and resistance(see chart of section 7-2).2. Place multi duct in its original position.3. Go to step 4.
Remove multi duct and check the resistancebetween white wires of connector.
Image represents erroron display
- Refrigerator Sensor Error
4
No Checking Result and SVC countermeasure
5
Check the voltage between white wires (theseare connected to PCB) for CON8.
0 Short
OFF Open
Other value Normal
Check the voltage between white wires(sensor wires) for CON8.
0V Out ofControl Replace (PCB)
5V
Other valuebetween0V & 5V
Normal
38
1. Check temperature and resistance(see chart of section 7-2).2. Go to step 5.
Result SVC Support
Result SVC Support
Replace the product.
1. Check temperature and resistance(see chart of section 7-2).2. Explain to customer about looseand dirty connectors.
- Defrost Sensor Error
1
2
3
Check if there’s a connector loose on CON8.
39
In the freezer compartment remove the ventilator and check the resistance points(orange wires).
No Checking Result and SVC countermeasure
Result SVC Support
Connected Go to step 2.
LooseConnect firmly and check again. Is there a problem?Yes: Go to step 2.No: Explain to customer.
0 Short Go to step 3.
OFF Open
Other Normal 1. Check temperature and resistance
(see chart of section 7-2).2. Go to step 4.
Result SVC Support
0 Short
OFF Open
Other Normal
Change sensor harness.
Result SVC Support
1. Check temperature and resistance(see chart of section 7-2).2. Place multi duct in its original position.3. Go to step 4.
Unplugged the refrigerator and all the PCBconnectors, check the resistance betweenorange wires for CON8.
Image represents erroron display
- Defrost Sensor Error
4
5
40
Check the voltage between orange wires (these are connected to PCB) for CON8.
No Checking Result and SVC countermeasure
0 Short
OFF Open
Other value Normal 1. Check temperature and resistance
(see chart of section 7-2).2. Go to step 5.
Result SVC Support
Replace the product.
Check the voltage between orange wires(sensor wires) for CON8.
0V Out ofControl Replace (PCB)
5V
Other valuebetween0V & 5V
Normal
Result SVC Support
1. Check temperature and resistance(see chart of section 7-2).2. Explain to customer about looseand dirty connectors.
- Ambient Temperature Sensor Error
1
2
3
0 Short Replace the product
OFF Open Change sensor
41
1. Remove the cover from the upper hinge.2. Cut the sensor and check the resistance
value of the cabinet side.
No Checking Result and SVC countermeasure
Check if there’s a connector loose on CON8.Result SVC Support
Connected Go to step 2.
LooseConnect firmly and check again. Is there a problem?Yes: Go to step 2.No: Explain to customer.
Unplugged the refrigerator and all the PCBconnectors, check the resistance betweengray wires for CON8. 0 Short Go to step 3.
OFF Open
Other Normal 1. Check temperature and resistance
(see chart of section 7-2).2. Go to step 4.
Result SVC Support
Go to step 4.
Result SVC Support
Image represents erroron display (when you press the button for 1 second)
- Ambient Temperature Sensor Error
4
5
6
Error Different Proceed according to the errorshown on display
YesNormalSame
Explain to customer.Got to step 6.
42
1. Remove the sensor cover.2. Cut the sensor and peel off the terminals.3. Make short circuit in the terminals from
the cabinet side.4. Measure the resistance for CON8.
1. Reconnect CON8.2. Reset power in the refrigerator.3. Check that there’s no error on display.
Check the voltage between gray wires(sensor wires) for CON8.
No Checking Result and SVC countermeasure
0 Short Change sensor
OFF Open Replace the product
Result SVC Support
Result SVC Support
0V Out ofControl Replace (PCB)
5V
Other valuebetween0V & 5V
Normal
Result SVC Support
1. Check temperature and resistance(see chart of section 7-2).2. Explain to customer about looseand dirty connectors.
- Defrost Operation Failure
1
2
3
Part Result SVC Support
DefrostResistance
See resistancechart in
section 7-2
DefrostSensor
0Ω
OFF
Otro
DefrostController
0Ω Go to step 3.
OFF
Result SVC Support
115 V Go to step 5
0 V Replace PCB
4 Check the voltage between brown and bluewires for CON2 (PIN3 & PIN9).
43
Neutral F-DEF HTR
For any anormality, check the sealing door.
Unplug the product, remove the fan coverand check the resistance in the defrost control part.
Connect the refrigerator, remove the PCB cover and start Test Mode 2 (press twice thebutton on PCB).
Resistance is the same asthe value from the chart?
Yes: Keep checking the defrost sensor.
No: Change the defrost resistance.
1. Refer to Defrost Sensorprocedure.
2. Keep checking the fuse.
Change defrost controller.
NOTE: Defrost sensor must be cold for start this mode (less than 13 °C).
The next sequence confirms that you started Test Mode 2:
Test Mode 2
)
No Checking Result and SVC countermeasure
DefrostSensor
DefrostController
DefrostResistance
Image represents erroron display
- Defrost Operation Failure
4
Result SVC Support
0 V Explain to customer
115 V Replace PCB
5 Check the voltage between brown and bluewires for CON2 (PIN3 & PIN9).
44
Neutral F-DEF HTR
Finish Test Mode 2 (press once more thebutton on PCB).
No Checking Result and SVC countermeasure
- Freezer Fan Error
45
Symptom Check Point
1. Freezer Fan Error 1. Check the air flow2. Check the fan motor3. Check the PCB Fan motor voltage
TEST MODE 1 Voltage [V]
CON54th pin ~ 5th pin
CON102 CON2
CON CON8
CON201
CON1
8V~13V
CON55th pin ~ 6th pin
Not 0V, 5V
Fan Motor
CON5
CON6
CON5
Image represents erroron display
- Freezer Fan Error
1
46
Reset the unit and start Test Mode 1 (press once the button on PCB).
Check the Fan motor voltage. Is fan motor voltage 8V~13V?
TEST MODE 1 Voltage [V]CON54th pin ~ 5th pin 8V~13V
TEST MODE 1 Voltage [V]CON55th pin ~ 6th pin
Not 0V, 5V
CON5
Open the freezer door and check the air flow. Does it feelwindy?
Result SVC Support
Yes Go to step 3
No Go to step 2
Check the fan motor. Rotate fan using hand. Does it feel sticky?
Result SVC Support
Yes Change the motor
2
No Go to step 3
3
Result SVC Support
Yes Go to step 4
No Replace PCB
Check the Fan motor voltage. Is fan feedbackvoltage 0V, 5V?
4
Result SVC Support
Yes Change the motor
No Explain to customer
No Checking Result and SVC countermeasure
CON5
- Condenser Fan Error
47
Symptom Check Point
1. Condenser Fan Error 1. Check the air flow2. Check the fan motor and connector3. Check the PCB Fan motor voltage
TEST MODE 1 Voltage [V]
CON51st pin ~ 2nd pin
8V~13V
CON52nd pin ~ 3th pin
Not 0V, 5V
Fan Motor
CON5
Image represents erroron display
CON102 CON2
CON CON8
CON201
CON1
CON6
CON5
- Condenser Fan Error
1
48
Reset the unit and start Test Mode 1 (press once the button on PCB).
Check the Fan motor voltage. Is fan motor voltage 8V~13V?
TEST MODE 1 Voltage [V]CON51th pin ~ 2nd pin 8V~13V
TEST MODE 1 Voltage [V]CON52ndpin ~ 3th pin
Not 0V, 5V
CON5
Check the fanrotating. Does it fanrotate?
Result SVC Support
Yes Go to step 3
No Go to step 2
Check the Fan motor. Rotate fan using hand.Does it feel sticky?
Result SVC Support
Yes Change the motor
2
No Go to step 3
3
Result SVC Support
Yes Go to step 4
No Replace PCB
Check the Fan motor voltage. Is fan feedbackvoltage 0V, 5V?
4
Result SVC Support
Yes Change the motor
No Explain to customer
No Checking Result and SVC countermeasure
Fan Motor
Fan Motor
CON5
- LED is not working (Multiduct)
1
2
3
Damaged wires, dust,dirt, lack of T.P.A.
Normal appearance andcorrect connection Go to step 2
Forced movement Normal Change door switch
Free movement No normal Go to step 3
Result SVC Support
Firmly connected Go to step 4
Loose
49
* Yes: Replace the door magnetic switch.
Disassembly multi duct and check that allthe wires are firmly connected to LED, the terminals must be secured with a T.P.A. and the LED wire must be free of any damage.
Open the refrigerator door. Check visually the door magnetic switch. Are the magneticswitch wires loose?
Disconnect the magnetic switch and confirmwhether there is continuity between theterminals. Is there continuity?
DoorSwitch
Resistance [
Doormagnetic
switch
Normal
0
InfinitePlace the
magnet closeto magnetic
switch
* Yes: Replace the door magnetic switch.
Replace LED lamp. Is therea problem?Yes: Go to step 2.No: Explain to customer.
Connect firmly, then check again (connectand disconnect. Is there a problem?Yes: Go to step 4.No: Explain to customer.
Result SVC Support
No Checking Result and SVC countermeasure
Result SVC Support
- LED is not working (Multiduct)
4
5
6
11~12 VDC Normal Go to step 5
0 V Replace PCB
50
CON8 Voltage [ V ]
Refrigerator door switch7th~8th Open 5V
NOTE: For detect continuity, the magnet and switch must be aligned.
*No: Replace the door magnetic switch.
CON8
CON8
Go to step 6 V5
No 5V Replace PCB
CON8 Voltage [ V ]
Closed 5V
Resultado Respuesta de SVC
Go to step 7V0
No 0V Replace PCB
No Checking Result and SVC countermeasure
Result SVC Support
No normal
Disconnect the magnetic switch and confirmwhether there is continuity between theterminals. When you close magnet to themagnetic switch, is there continuity?
Result SVC SupportConect the magnetic switch and check on the PCB, el voltage for CON8 (pin 7th~8th). While the door is open, is the voltage valueof 5V?
Check the voltage of CON8 (7th~8th). While the door is closed, is the voltagevalue of 0V?
Refrigerator door switch7th~8th
- LED is not working (Multiduct)
7
51
8
9
10
Check the R-LED when the door is open. Is the R-LED turn on?
CON101
Yes Explain to customer
No Go to step 8
CON101 Voltage [ V ]
1er ~ 3ro
1er ~ 3ro
Door
OpenClosed
12V0V
Yes Change LED from refrigerator
No Go to step 9
CON8
Go to step 10Yes
No Replace PCB
CON8 Voltage [ V ]
Refrigerador LED lamp(11th~12th)
Closed 0V
CON8 Voltage [ V ]
Closed 12V
Yes Explain to customer. Product is normal
No Replace PCB
CON8
No Checking Result and SVC countermeasure
Result SVC Support
Result SVC Support
Result SVC Support
Result SVC Support
Check the R-LED. When the door is open, the voltage value for R-LED is 12 V?
Check the voltage of door switch PCB. Whilethe door is closed, is the voltage value of 0Vfor CON8 (11th~12th)?
Check the voltage of door switch PCB. While the door is open, is the voltage value between 10 & 12V for CON8 (11th~12th)?
Refrigerador LED lamp(11th~12th)
- Poor cooling on refrigerator compartment
1
2
Connected Go to step 2.
Loose
0 Short Refer to “Refrigerator Sensor Error”sectionOFF Open
OtherValue
Normal
Check if there’s a connector loose on CON8.
Air Flow Normal Go to step 5
No air flow No normal Go to step 6
3
4
52
Connect firmly and check again. Is there a problem?Yes: Go to step 2.No: Explain to customer.
Unplugged the refrigerator and all the PCBconnectors, check the resistance betweenwhite wires for CON8.
1. Check temperature and resistance (seechart of section 7-2).
2. Check the box corresponding to thetemperature of the resistance by the value (see “R” in the sensor graphic).
3. Check if the equivalent temperaturematches with the real temperature ofthe compartment.
Go to step 3.
1. Connect the refrigerator. 2. Remove the PCB cover and start Test
Mode 1 (press once the button on PCB).
1. Open the freezer door.2. Press manually the door switch.3. Check the air flow.
No Checking Result and SVC countermeasure
Result SVC Support
Result SVC Support
Result SVC Support
- Poor cooling on refrigerator compartment
5
6
Freezer Fan
1 2
3 4
Forced Movement
Free Movement
53
1. Open refrigerator door.2. Press manually the door switch, wait for
10 seconds.3. Check the air flow.
1. Turn off the refrigerator.2. Remove grill fan and check manually the
freezer fan motor movement, feel the rotation condition, then proceed. 1. Replace freezer fan motor.
1. Check compressor performance (refer to Troubleshooting section).
No Checking Result and SVC countermeasure
Result SVC Support
Result SVC Support
Normal Go to step 7Air Flow
No Normal Go to step 6No Air Flow
- Excesive cooling on refrigerator section
1
2
3
4
0
OFF
Check if there’s a connector loose on CON8.
54
No Checking Result and SVC countermeasure
Result SVC Support
Result SVC Support
Connected Go to step 2.
Loose
Connect firmly and check again. Is there a problem?Yes: Go to step 2.No: Explain to customer.
Result SVC Support
Unplugged the refrigerator and all the PCBconnectors, check the resistance betweenwhite wires for CON8.
1. Connect the refrigerator. 2. Remove the PCB cover and start Test
Mode 1 (press once the button on PCB).
1. Open the freezer door.2. Press manually the door switch.3. Check the air flow.
Air Flow Normal Go to step 5
No air flow No normal Replace PCB
Refer to “Refrigerator Sensor Error”section.
Short
Open
OtherValue
Normal
1. Check temperature and resistance (seechart of section 7-2).
2. Check the box corresponding to thetemperature of the resistance by the value (see “R” in the sensor graphic).
3. Check if the equivalent temperaturematches with the real temperature ofthe compartment.
Go to step 3.
- Excesive cooling on refrigerator section
5
55
Reset power in the refrigerator.Remove the PCB cover and start TestMode 2 (press twice the button on PCB).
1. Open the refrigerator door.2. Press manually the door switch.3. Check the air flow.
Replace PCB.
Check compressorperformance (refer to Troubleshooting section).
No Checking Result and SVC countermeasure
Result SVC Support
Air Flow No normal
No Air Flow Normal
304A
411A
406B
315A
282B
281B
B01
323B
329A
420A
319A315B
315B
315C
318A
314A307A
312A
317A
310A
281A
319C
309A
103A
105A
407A
301A
418A
103A
B01
501A
S38
501F
106B
104C
901A
401A
303B
303BS02
106B
283B
B03
CASE PARTSCAUTION: Use the part number to order part, not the position number.
9. EXPLODED VIEW#EV#
412D
120A
120D
120B
120C
409A
158A
501G
154B
149A
149C
149C
151A
330B
405C
404A
405A
900D
329C
S10
REFRIGER ATOR AND FREEZER PARTSCAUTION: Use the part number to order part, not the position number.
#EV#
332A
203A201A
200A
212G
233A231A
230A
210B
210A
212C
212A
244C
243A
243B
244A
241B
235A
DOOR PARTSCAUTION: Use the part number to order part, not the position number.
#EV#
205B
205A
205B
241A
241C