Sharp SJ-A20S-SL User manual

SERVICE MANUAL
SJ-A20S/B21S/A24S/B25S/A28A/B27S/A31S/A34S-SL
No.S9902SJ22FTVTT
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
CONTENTS
Refrigerator-freezer
MODELS SJ-A20S-SL
SJ-B21S-SL
SJ-A24S-SL
SJ-B25S-SL
SJ-A28S-SL
SJ-B27S-SL
SJ-A31S-SL
SJ-A34S-SL
DESTINATION T
Refer to "HFC-134a COOLING UNIT" Service Manual for handling this refrigerant.
Refrigerant; HFC-134a
SJ-A28S-SL
SJ-B27S-SL
CHAPTER 1. SPECIFICATION
CHAPTER 2. DESIGNATION OF VARIOUS PARTS
[1] EXTERNAL DESCRIPTION........................... 2-1
[2] CONSTRUCTIONS........................................ 2-2
CHAPTER 3. DIMENTIONS
[1] OUTER DIMENTIONS AND
CLEARANCE ................................................. 3-1
[2] INNER DIMENTIONS .................................... 3-4
CHAPTER 4. LIST OF ELECTRICAL PARTS
CHAPTER 5. WIRING DIAGRAM
[1] WIRING DIAGRAM ........................................ 5-1
[2] ELECTRIC ACCESSORIES LAYOUT ........... 5-2
CHAPTER 6. FAILURE DIAGNOSIS
[1] OUTLINE OF CONTROL ............................... 6-1
[3] RE-SETTING OF MICROCOMPUTER AT
POWER FAILURE.......................................... 6-2
[4] DIAGNOSIS METHOD OF FAILURE ............6-2
[5] CONVERSION TABLE ..................................6-3
[6] CIRCUIT DIAGRAM OF MAIN PWB .............6-4
CHAPTER 7. FUNCTIONS
[1] ADJUSTABLE TEMPERATURE
CONTROL .....................................................7-1
CHAPTER 8. ASSEMBLI NG PROCEDURES OF
MAIN PARTS AND CAUTIONS
[1] F-LOUVER ASS'Y (SJ-A20S/B21S/A24S/
B25S/A28S/B27S)..........................................8-1
[3] R CONTROL COV. ASS'Y.............................8-7
[4] HOW TO REPLACE THE LAMP ...................8-9
[5] DEFROST HEATER ......................................8-10
CHAPTER 9. COOLING UNIT
[1] COOLING UNIT.............................................9-1
[2] LOCATION ....................................................9-2
Parts Guide
[2] F-LOUVER ASS'Y (SJ-A31S/A34S)...............8-4
[1] SJ-A20S/B21S/A24S/B25S/A28S/B27S........ 2-1
[2] SJ-A31S/A34S .......................................... 2-2
[3] PRECAUTION FOR USING LEAD-FREE
SOLDER........................................................5-3
[2] CHECK MODE OF DEFROST HEATER
(Forced Defrosting) ........................................ 6-1
SJ-F230G
SJ-F230G
SJ-F230G
Ag

1 – 1
SJD34NSLG Service Manual
CHAPTER 1. SPECIFICATION
RATING
PLUG TYPE
Plug cord 2 pin
Plug type -
Destination mark T
COLOR
Items -SL
Outside color Silver
Inside color White
SJ-A20S
SJ-B21S
SJ-A24S
SJ-B25S
SJ-A28S
SJ-B27S
Outer dimensions Height 1253mm(49.3") 1389mm(54.7") 1491mm(58.7")
Width 545mm(21.5") 545mm(21.5") 545mm(21.5")
Depth 620mm(24.4") 620mm(24.4") 620mm(24.4")
184liter(6.5cu.ft) 212liter(7.5cu.ft) 227liter(8.0cu.ft)
Defrosting System
Start
Finish
Freezer Compartment F-shelf
Ice cube maker
Ice storage box
Door pocket 2
Refrigerator Compartment Fresh case
R shelf (plastic) 1 2 -
R shelf ass'y (glass) - - 2
V shelf (plastic) 1 1 -
V shelf ass'y (glass) - - 1
Vegetable case
Egg pocket
Small pocket -
Door pocket B -
Bottle pocket
Door pocket
1
1
Deodorizing unit
Items
Type
No-frost freezer
Interior lamp
Evaporating pan
1
Rate storage volume (Rated volume)
Temperature control
Automatic (Adjustable)
Yes
1
1
1
2-Door
Heater system
Automatic
Automatic
1
1
Twin ice cube maker
1
1
1
1
1 (Honeycomb type)
SJ-A20S/B21S/A24S/B25S/A28S/B27S
Stand Yes
SJ-A20S
SJ-B21S
SJ-A24S
SJ-B24S
SJ-A28S
SJ-B27S
Rated voltage (V~)
Rated frequency (Hz)
Climate class
Rated power input (W)
Rated current (A)
Current input (A)
Defrosting input (A)
Defrosting power (W)
HFC-134a(75 g) HFC-134a(75 g) HFC-134a(95 g)
Net Weight (kg) 39 41 45
0.85
0.58
50
T
220
Insulation blowing gas [Flammable]
Items
Refrigerant (Charging quantity) [Non-flammable]
Cyclo pentane (HC)
128
0.58
100
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1 – 2
SJD34NSLG Service Manual
RATING
PLUG TYPE
Plug cord 2 pin
Plug type -
Destination mark T
COLOR
Items -SL
Outside color Silver
Inside color White
SJ-A31S SJ-A34S
Outer dimensions Height 1580mm(62.2") 1700mm(66.9")
Width 600mm(23.6") 600mm(23.6")
Depth 631mm(24.8") 631mm(24.8")
292liter(10.3cu.ft) 313liter(11.1cu.ft)
Defrosting System
Start
Finish
Freezer Compartment F-shelf
Ice cube maker
Ice storage box
Door pocket
Refrigerator Compartment Fresh case
R shelf ass'y (glass) 2 3
V shelf ass'y (glass)
Vegetable case
Egg pocket
Egg tray
Small pocket 1 2
Door pocket B
Bottle pocket
Door pocket
1 (Honeycomb type)
1
1
1
1
2-Door
Automatic
2
Temperature control
Automatic
1
Twin ice cube maker
1
Deodorizing unit
Items
Type
No-frost freezer
Interior lamp
Evaporating pan
Rated storage volume (Rated volume)
1
Heater system
1
1
Automatic (Adjustable)
Yes
1
1
1
SJ-A31S/A34S
SJ-A31S SJ-A34S
Rated voltage (V~)
Rated frequency (Hz)
Climate class
Rated power input (W)
Rated current (A)
Current input (A)
Defrosting current (A)
Defrosting power (W)
Cyclo pentane (HC)
Net Weight (kg) 52 54
0.95
0.58
Insulation blowing gas [Flammable]
Items
Refrigerant (Charging quantity) [Non-flammable]
HFC-134a(100 g)
220
50
T
109
0.58
128
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2 – 1
SJ26NSL Service Manual
CHAPTER 2. DESIGNATION OFVARIOUS PARTS
[1] EXTERNAL DESCRIPTION
The names in parenthesis "[ ]" are the denominations used in the REPLACEMENT PARTS LIST.
1. Freezer shelf [F-shelf]
2. Freezer temp.control knob
3. Ice cube maker
4. Ice cube box [Ice storage box]
5. Fresh room
6. Refrigerator temp.control knob
7. Light [Lamp]
8. Refrigerator shelf
[ R-shelf (plastic) : SJ-A20S/B21S; 1 pc.
SJ-A24S/B25S; 2 pcs.
R-shelf ass’y (glass) :SJ-A28S/B27S/A31S;
2 pcs, SJ-A34S; 3 pcs.]
9. Vegetable shelf
10. Vegetable crisper [Vegetable case]
11. Adjustable foot [Adjustable leg]
12. Magnetic door seal [Door packing]
13. Door pocket
16. Light switch
15. Egg pocket
(SJ-A20S/B21S/A24S/B25S; 2 pockets,
SJ-A28S/B27S/A31S/A34S; 3 pockets)
17. Small pocket (right) [Small pocket]
18. Small pocket (left) [Door pocket B]
19. Bottle pocket
(SJ-A24S/B25S/A28S/B27S/A31S; 1 pocket,
SJ-A34S; 2 pockets)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
13
12
14. Egg holder [Egg tray]
(SJ-A24S/B25S/A28S/B27S/A31S/A34S)
(Only SJ-A31S/A34S)
[ R-shelf (plastic) : SJ-A20S/B21S/A24S/B25S,
R-shelf (glass) : SJ-A28S/B27S/A31S/A34S ]
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2 – 2
[2] CONSTRUCTIONS
Fan motor
Def-thermistor
F-temp. control knob
R-temp. control knob
Evaporator
Defrost heater
Deodorizing unit
R-thermistor
PWB L ass'y
Running capacitor
Lamp
Compressor
Starting relay
Protector
Evaporating pan
Mark: Cold air flow
Fuse ass'y
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3 – 1
SJD26LVSL
CHAPTER 3. DIMENTIONS
[1] OUTER DIMENTIONS AND CLEARANCE
1. SJ-A20S/B21S
2. SJ-A24S/B25S
(Unit:mm)
9
34
4
610
628.5
1085
545
1145
365
970
545
443.5
757.5
1253
(Unit:mm)
9
34
4
610
628.5
1085
545
1145
365
970
545
443.5
893.5
1389
6060
60
60
60
60
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3 – 2
3. SJ-A28S/B27S
(Unit:mm)
9
34
4
610
628.5
1085
545
1145
365
970
545
515.5
923.5
1491
60
60 60
4. SJ-A31S
600 600
541.5
986.5
34
4
1065
1161
1221
405
631
1580
9
649.5
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3 – 3
5. SJ-A34S
600
541.51106.5
34
4
631
1161
600
1221
405
1065
1700
9
649.5
[2] INNER DIMENTIONS
1. SJ-A20S/B21S
380
390
253
321 45
146
149
300
67
107
67
196
55
43
391
38
33
138
417
417
363
208
371
366
366
137
208
204
154
103
250
143
107
66
120
80
211
292
340
(Unit:mm)
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3 – 4
2. SJ-A24S/B25S
(Unit:mm)
196
55
43
380
390
45
391
38
33
138
169
417
417
363
208
180
371
366
366
67
30
107
67
137
208
253 271 214
187
434 204
154
103
250
143
107
66
120
80
91
211
292
68
340
417 292
154 86
3. SJ-A28S/B27S
391
38
3355
43
138
390
169
417
417
417
363
208
137
208
253 271 214 45
103
250
143
107
66
66
202
464
144123184
196
120
80
91
180
68
30
107
67
371
366
67
366
67
366
292
211
(Unit:mm)
292
254
204
154
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3 – 5
4. SJ-A31S
5. SJ-A34S
430
38
3355
43
138
445
472
472
472
411
217
152
217
259
330
147
170
210
530
217 45
111
380
92
107
66
66
231
254
204
154
217
120
80
91
180
68
237
30
10767
430
430
67
416
67
416
231
312
312
430
38
3355
43
138
445
480
472
472
411
217
152
217
533282
147
170
160
650
155 45
111
380
92
107
66
66
231
254
204
154
217
120
80
91
91
180
68
237
5930 30
107
67
430
430
67
416
67
416
231
312
150
155
237
155
312
472
312
170
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4 – 1
SJ26NSL
CHAPTER 4. LIST OF ELECTRICAL PARTS
ITEMS TYPE NAME RATING SPECIFICATIONS
R Thermistor
Defrost Thermistor
―
―
DC 5V
DC 5V
R0 = 6.4 k , B(0) = 3811
R0 = 6.4 k , B(0) = 3811
Thermo. fuse SF70E 250V 10A Working temp. : 70 °C
Defrost heater ―220 - 240V 378 140W at 230V
Fan motor
(A20S/B21S/A24S/B25S/
A28S/B27S)
(A31S/A34S)
3R00121
3R00101B
AC 200-240V, 50Hz
AC 220-240V,50Hz
AC 220-230V,60Hz
Door switch SDKNA20101
250V 0.25A
125V 0.5 A
3 Terminals push-botton type
R Lamp ―240V 15W #187 Straight Terminal, Pitch 6
Compressor
(A20S/B21S/A24S/B25S)
(A28S/B27S)
(A31S/A34S)
FL0845-ST
FL1152-SZ
FL1257-SW
220-240V/50Hz
220-240V/50Hz
Cooling capacity : 106 W (50Hz)
Main coil : 23.8
Aux. coil : 29.7
(at 75 °C)
Cooling capacity : 136 W (50Hz)
Main coil : 23.8
Aux. coil : 42.4
(at 75 °C)
Cooling capacity : 170 W (50Hz)
Main coil : 18.4
Aux. coil : 31.5
(at 75 °C)
Starting Relay PEN0SBT 50/60 Hz 22 ± 4.4 (at 25 °C)
Overload Relay (Protector)
(A20S/B21S/A24S/B25S)
(A28S/B27S)
(A31S/A34S)
5TM158RFBYY-53
5TM149NFBYY-53
5TM189RFBYY-53
―
―
―
Open/ Close : 120 ± 0.5 / 61 ± 9.0°C
Open/ Close : 120 ± 0.5 / 61 ± 9.0°C
Open/ Close : 130 ± 0.5 / 61 ± 9.0°C
Running capacitor
(A20S/B21S/A24S/B25S/
A28S/B27S)
(A31S/A34S)
RC-EZA237CBZZ
RC-EZA249CBZZ
400V 3
400V 4
Main PWB FPWB-A667CBKZ 220-240V ―
220-240V/50Hz
―
―
―
―
F
F
Common
Aux. coil Main coil
(A31S/A34S)
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5 – 1
SJD26LVSL
CHAPTER 5. WIRING DIAGRAM
[1] WIRING DIAGRAM
Be sure to replace the electrical parts with specified ones for maintaining the safety and performance of the set.
(BL)
STARTING RELAY
COMPRESSOR
RUNNING CAPACITOR
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5 – 2
[2] ELECTRIC ACCESSORIES LAYOUT
F-LOUVER ASS’Y
FAN MOTOR FM
LEAD EV COVER
FUSE
DEF-THERMISTOR
DEF-HEATER
R-CBOX-K
PWB
LAMP
R-THERMISTOR
DOOR SWITCH
TERMINAL COVER
COMPRESSOR
PROTECTOR
STARTING RELAY
CABINET
HARNESS FL ASS’Y
RELAY WIRE ASS’Y
(BOTTOM ANGLE)
RUN CAP.
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5 - 3
1. Employing lead-free solder
The PWB of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual. The suffix letter
indicates the alloy type of the solder.
Example:
2. Using lead-free wire solder
When repairing a PWB with the "LF" symbol, only lead-free solder should be used. (Using normal tin/lead alloy solder may result in cold soldered
joints and damage to printed patterns.)
As the melting point of lead-free solder is approximately 40°C higher than tin/lead alloy solder, it is recommend that a dedicated bit is used, and that
the iron temperature is adjusted accordingly.
3. Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is higher and has poorer wettability, (flow), to prevent damage to the land of the PWB, extreme
care should be taken not to leave the bit in contact with the PWB for an extended period of time. Remove the bit as soon as a good flow is achieved.
The high content of tin in lead free solder will cause premature corrosion of the bit. To reduce wear on the bit, reduce the temperature or turn off the
iron when it is not required.
Leaving different types of solder on the bit will cause contamination of the different alloys, which will alter their characteristics, making good soldering
more difficult. It will be necessary to clean and replace bits more often when using lead-free solder. To reduce bit wear, care should be taken to clean
the bit thoroughly after each use.
Indicates lead-free solder of tin, silver and copper
[] PRECAUTIONS FOR USING LEAD-FREE SOLDER
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SJ431NSL Service Manual
CHAPTER . FAILURE DIAGNOSIS
[1] OUTLINE OF CONTROL
1. ON/OFF Control of Compressor
When the plug of refrigerator is connected, the compressor will start automatically and run for approximately 5 minutes. After then, ON/OFF of the
compressor will be controlled depend on the temperature detected by the R-thermistor. During minutes after the compressor stops, it will not start
regardless of the detected temperature by R-thermistor..
2. Defrosting
Microcomputer calculates the appropriate timing of defrosting and defrosting is made automatically. Therefore no manual operation by user is
required. The cycle of defrosting varies depend on the usage condition of the refrigerator. (Maximum time 50 hours, minimum time 4 hours)
3. Thermistor
Thermistors are installed in 2 places; in the refrigerator compartment and close to the
Evaporator. (R-thermistor and Def-thermistor)
It is not installed in the freezer compartment.
R-thermistor reads the temperature in the refrigerator compartment and controls ON/OFF
of compressor.
Def-thermistor detects the temperature around the evaporator and shows the progress of
defrosting.
[2] CHECK MODE OF DEFROST HEATER (Forced Defrosting)
The operation of the defrost heater can be checked by starting it.
In case the failure of defrosting is suspected, this is an effective inspection method.
1. Starting Method
At the power OFF condition.
1) Keep the door of the refrigerator compartment open.
2) Set the Temp. Control Knob in the refrigerator compartment to the following position.
220-240V models: Center
110-127V models: Max
3) Keep the door open and supply power source.
2. Normal Operation
1) Approximately 3 seconds after power supply, the relay on the PWB will be turned ON and the defrost heater will be electrified for 5 seconds.
2) After 5 seconds, if the temperature of Def-thermistor reaches high enough (over 10°C) and judged as defrosting completion, the compressor runs
for 5 minutes and then returns to the normal control.
On the other hand, if the temperature of Def-thermistor is still low (under 10°C), the defrost heater will be electrified until the temperature of Def-
thermistor reaches the specified temperature or higher.
After completion of electrification, the compressor runs for 5 minutes and then returns to the normal control.
* In the case that any abnormality in Door Switch, Volume, R-thermistor or Def-thermistor, or the Temp. Control Knob is not in the position corre-
sponding to the value of the rating voltage settled to the PWB itself, this mode will not be entered nor the defrost heater is electrified.
Def-thermistor
Evaporator
Defrost heater
R-thermistor
PWB
Compressor
(Center)
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[3] RE-SETTING OF MICROCOMPUTER AT POWER FAILURE
• At the power failure for over 0.1 second, the control of the microcomputer will be reset.
When the power is re-supplied, the temperature of R-thermistor will be detected again and ON/OFF of the compressor will be decided.
• At the momentary power failure (less than 0.1 second), the protector of the compressor might work due to the high load to the compressor for re-
starting.
• When resetting is made during the operation of the defrost heater, the normal cooling will be resumed.
[4] DIAGNOSIS METHOD OF FAILURE
Check by the following procedure;
1. Disconnect power supply and check the following point.
• Is there any failure portion in inserting connectors?
2. Detach the PWB and check the appearance.
• Is there any burning or abnormal damage?
3. Check the conditions of the fuse and the varistor. (Fuse and varistor are located at the position in the figure.)
• Melting in the fuse cannot be checked visually (as the safer one than transparent glass tube is used). Be sure to detach the connector “CN1”
before measuring the resistance between the both ends of the fuse by the tester.
• Next, measure the resistance value between the both leads of the varistor.
4. Check whether the temperature (resistance value) shown by R-thermistor is correct or not. (Refer to the table below.)
• Detach the connector “CN3” on the PWB and measure the resistance value between 1 and 2 pins.
5. Check whether the temperature (resistance value) shown by Def-thermistor is correct or not. (Refer to the table below.)
• Detach the connector “CN3” on the PWB and measure the resistance value between 3 and 4 pins.
Varistor→ Normal (several hundreds Ω~several KΩ egamaD)
Fuse↓
Melting
Flow of excessive current is considerable for some rea-
sons.
Check for any portion to cause short circuits especially
on the primary circuit.
There is a possibility of excessive voltage applied from out-
side with the factor such as thunder etc. When repeated
with a factor other than thunder, there might be the appara-
tus near by generating noises.
Conduction
Fuse and varistor are normal.
Possibility to be caused by excessive current or voltage
near the power supply is low. Proceed to the next check
item.
—
Fuse
Varistor
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– 3
[5] CONVERSION TABLE
Conversion Table between R-thermistor and Def-thermistor Temperature and Resistance Value
Temperature
(°C)
Resistance Value
(kΩ)
Temperature
(°C)
Resistance Value
(kΩ)
Temperature
(°C)
Resistance Value
(kΩ)
-25 2 .1 -11 11.49 3 5.5
-24 24.54 -10 10.88 4 5.23
-23 23.08 -9 10.3 5 4.98
-22 21.72 -8 9.75 4.74
-21 20.4 -7 9.24 7 4.52
-20 19.27 - 8.7 8 4.3
-19 18.1 -5 8.3 9 4.1
-18 17.13 -4 7.87 10 3.91
-17 1 .1 -3 7.47 11 3.73
-1 15.25 -2 7.09 12 3.5
-15 14.4 -1 .74 13 3.4
-14 13. 0 .4 14 3.24
-13 12.85 1 .08 15 3.1
-12 12.15 2 5.78
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[ ] CIRCUIT DIAGRAM OF MAIN PWB
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7 – 1
SJD2 LVSL
CHAPTER 7. FUNCTIONS
[1] ADJUSTABLE TEMPERATURE CONTROL
1. Temperature control
1) FREEZER COMPARTMENT
The FREEZER TEMP. CONTROL regulates the quantity of cold air to the freezer.
"MAX" setting directs more cold air to the freezer compartment. (making the freezer compartment colder)
"MIN" setting directs less cold air to the freezer compartment. (making the freezer compartment less colder)
2) REFRIGERATOR COMPARTMENT
The REFRIGERATOR TEMP. CONTROL controls the compressor running time of the refrigeration system.
"Coldest"(5) setting will result in colder temperature in the both (refrigerator and freezer) compartments.
"MIN"(1) control setting will result in warmer temperature in the both (refrigerator and freezer) compartment.
NOTE:
• For hot summer conditions (about over 35 °C ambient temperature), set your FREEZER TEMP. CONTROL to less colder than "MID"
(towards "MIN"). This is because "MAX" setting may result in too little air flow to the refrigerator compartment, causing too warm tempera-
ture in the refrigerator compartment. And set your refrigerator compartment freeze, you must set the REFRIGERATOR TEMP. CONTROL
to less colder setting. (toward "MIN").
• In a cold kitchen (about under 10 °Cambient temperature), set your FREEZER TEMP. CONTROL to "MAX" to avoid too warm tempera-
ture in the freezer compartment. This is because the compressor operation is too short in winter, and not enough cold air is provided to
the freezer compartment. And if the foods in the refrigerator compartment freeze, you must set the REFRIGERATOR TEMP. CONTROL to
less colder setting. (toward "MIN").
• With the FREEZER TEMP. CONTROL set to "MAX" , there will be less cold air directed to the refrigerator compartment, and the refrigera-
tor compartment may not become cold enough.
2. Reference value of temperature
The values tables above refer to the measurement carried out center area and 1/3 of overall height from the bottom at each of the refrigerator and the
freezer after the machine has been operated at an ambient temperature of 32 °C with no food stored and the door closed until the temperature is sta-
bilized.
The values vary depending upon frequency of opening and closing, the doors ambient temperature, amount of stored foods and manner of storing
foods.
KNOB
SETTING
MAX
MID
MIN
PURPOSE
For making ice rapidly of fast freezing. And winter season.
When restocking with fresh food.
For normal freezing.
For storing frozen food for a short period (up to one month).
When frozen food or ice cream is not stored.
FREEZER TEMP.CONTROL
KNOB
SETTING
MIN
MAX
(Center)
PURPOSE
For keeping freshness of food longer.
When the refrigerator does not provide sufficient cooling.
For normal operation.
When the refrigerator provides excessive cooling.
When refrigerator temperature control sets to the "MAX", some foods stored
may become frozen. In this case adjust control set back to the center position.
REFRIGERATOR
TEMP.CONTROL
SETTING OF
FREEZER TEMP.
CONTROL KNOB
Freezer
temperature
MAX
(Coldest)
MID
Approx. Approx. Approx.
The values shown above refer to the case where the
refrigerator temp. control knob is set at "MID".
SETTING OF
REFRIGERATOR TEMP.
CONTROL KNOB
Refrigerator
temperature
MAX
(Coldest)
MIN
Approx. Approx. Approx.
The values shown above refer to the case where the
freezer temp. control knob is set at the center position.
(Center)
MIN
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7 – 2
3. Temp. control system
Ambient temperature
Refrigerator compartment temperature (at the center position)
Freezer compartment temperature (at MID position)
0
Normal operation (ex. at 20 C ambient temperature)
ON Compressor & Fan
10
20
30
-20
-10
Time
OFF OFF
ON
Temp.( C )
FREEZER
COMPARTMENT
FREEZER
COMPARTMENT
REFRIGERATOR
COMPARTMENT
REFRIGERATOR
COMPARTMENT
Evapo-
rator
Cold air
Fan
Compressor
much cold air
less cold air
FREEZER
COMPARTMENT
REFRIGERATOR
COMPARTMENT
low cold power
less cold air
regulating the quantity
of cold air.
much cold air
regulating the quantity
of cold air.
controlling the compressor
& the fan running time
high cold power
controlling the compressor
& the fan running time
Freezer Temp. Control Knob
The FREEZER TEMP. CONTROL regulates the quantity of cold air to the freezer.
MAX setting directs more cold air to the freezer compartment.
(making the freezer compartment colder)
MIN setting directs less cold air to the freezer compartment.
(making the freezer compartment less colder)
Refrigerator Temp. Control Knob
The REFRIGERATOR TEMP. CONTROL controls the
compressor & the fan running time of the refrigerator system.
MAX setting will result in colder temperature in the both
(refrigerator and freezer) compartments.
MIN control setting will result in warmer temperature in the
both (refrigerator and freezer) compartments.
Coldest Coldest
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