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Samsung RB37A52N0SA [68/101] Troubleshooting
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68
4. TROUBLESHOOTING
Defrost Sensor is normal?
(Check it with Self-Diagnosis)
The Sensor Temperature Value
is lower than 8℃.
After heating up
for a while, it goes back to
Cooling Operation
MAIN PCB
Connection is normal?
Power is applied to
F-Defrost Heater.
Start
Do Forced Defrost
Normal
Check Bimetal, Heater Wire Cut or
Wire Contact
Repair Defective Relay or
replace PCB Assy
Replace the Sensor
Forced Operation for a while
Repair Connector
Check the related sensors
if they are defective.
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Temp vs. Resistance Table
30℃ 4.22㏀
For more
detail data,
refer to
DATA1. Temp
Table
20℃ 6.05㏀
10℃ 8.87㏀
0℃ 13.29㏀
-10℃ 20.42㏀
-20℃ 32.23㏀
-30℃ 52.41㏀
** Sensor Resistance Reading Location **
F-DEF : Between CN30 #4 (RED) ↔ CN30 #7 (GRU)
** 0Ω : Short / ∞Ω : Open
** Sensor Voltage Reading Location **
F-DEF : Between PCB COMMON Ground
and CN30 #4 (or SEN_2)
** 0V : Short / 5V : Open
Note When the temperature of the F DEF Sensor
goes over 8℃ with the Defrost Heater heating up, it
stops heating and it goes back to Cooling Operation.
After pressing the Freezer and the Fridge
buttons simultaneously for 4 seconds,
push the Freezer button to enter the
Test Mode. And then, when any one of
the buttons is pressed twice, the Forced
Defrost will start and the relevant LED
Lamp will light up on the display panel.
** Heater Resistance Reading Location **
F-DEF : Resistance between CN70 #5 (BRN) ↔
CN77 #3 (ORG) should be 260 ohm ± 10%.
** 0Ω : Short / ∞Ω : Open
(Bimetal / Thermal Fuse / Heater Defect)
Refer to Self-Diagnosis
Check Bimetal, Heater
Continuity or Wire Connection
All Defrost Heaters
are normal?
Yes
No
4-2-5) When Defrost does not work (F DEF Heater)
- When there is a trouble in defrosting, select the Self-Diagnosis function before turning off the unit.
And, check if there is any defect in the Defrost Heater. If not, plug out the unit and do the Trouble-Shooting.
(Refer to the Self-Diagnosis function and check the details)
☞ When checking with the Self Diagnosis
Содержание
- Refrigerator 1
- Refrigerator contents 1
- Important safety notice 2
- Warning 2
- Precautions safety warnings 3
- Caution 4
- Precautions safety warnings 4
- Symbols 4
- Warning 4
- Warning caution 4
- Do not disassemble 5
- Precautions safety warnings 5
- Prohibition 5
- Warning caution 5
- Product specifications 6
- 1 introduction of main function 7
- Product specifications 7
- Samsung refrigerator has the following characteristics 7
- 2 model specification 8
- Product specifications 8
- Product specifications 9
- Product specifications 10
- 3 electric parts specification 11
- Product specifications 11
- Product specifications 12
- Product specifications 13
- Product specifications 14
- 4 dimensions mm 15
- Product specifications 15
- Disassembly reassembly 16
- 1 precaution 17
- Disassembly reassembly 17
- Need tool 17
- 2 assy door 18
- Disassembly reassembly 18
- Removing the refrigerator door 18
- Disassembly reassembly 19
- Removing the freezer door 19
- 3 door sub parts 20
- Disassembly reassembly 20
- Disassembly reassembly 21
- 4 refrigerator compartments 22
- Disassembly reassembly 22
- 5 freezer compartments 23
- Disassembly reassembly 23
- Disassembly reassembly 24
- Disassembly reassembly 25
- Disassembly reassembly 26
- Disassembly reassembly 27
- Disassembly reassembly 28
- 6 machine compartment 29
- Disassembly reassembly 29
- Disassembly reassembly 30
- 7 compressor 31
- Disassembly reassembly 31
- 8 reversing the door swing 32
- Disassembly reassembly 32
- Handle parts carefully to avoid scratching paint 2 set screws down by their related parts to avoid using them in the wrong places 3 provide a non scratching work surface for the doors ex blanket 4 during door reversing refrigerator should not be stained with oil 32
- Read these instructions completely and carefully 32
- Disassembly reassembly 33
- Basic position 34
- Disassembly reassembly 34
- Figure description 34
- Position reversed 34
- Disassembly reassembly 35
- Disassembly reassembly 36
- Disassembly reassembly 37
- Disassembly reassembly 38
- Disassembly reassembly 39
- Troubleshooting 40
- 1 1 test function forced operation forced defrost 41
- 1 check list before trouble shooting 41
- Troubleshooting 41
- ① ② 41
- Troubleshooting 42
- Troubleshooting 43
- Troubleshooting 44
- Troubleshooting 45
- 1 2 self diagnosis function 46
- Hold 13 sec 46
- Troubleshooting 46
- Self diagnosis check list 47
- Troubleshooting 47
- Self diagnosis error description 48
- Troubleshooting 48
- 1 3 load status display function 49
- Troubleshooting 49
- ① press the freezer fridge buttons for 7 seconds at the same time then the display leds will blink for 3 seconds at this time release the buttons 49
- ① ② 49
- ② and press the fridge button once 49
- Load mode check list 50
- Troubleshooting 50
- 1 4 restoration of previous settings upon instant power outage 51
- 1 5 demo mode function for store display 51
- Troubleshooting 51
- ① press the freezer fridge buttons for 7 seconds at the same time then the display leds will blink for 3 seconds at this time release the buttons ② and press the freezer button once 51
- ① ② 51
- 1 6 option setting function 52
- Troubleshooting 52
- ① press the freezer fridge buttons for 4 seconds at the same time then the display leds will blink for 3 seconds at this time release the buttons 52
- ① ② 52
- ② and press the fridge button once 52
- Option mode button operation description 53
- The bar type display panel shows the numbers as shown in the following tables binary type 53
- Troubleshooting 53
- ① displays the selected option set value ② displays the selected option ③ option set value increase by one degree rotation type ④ option increase by one degree rotation type 53
- ① ② 53
- ③ ① ② ④ 53
- ③ ④ 53
- Troubleshooting 54
- 1 7 option table 55
- Troubleshooting 55
- Troubleshooting 56
- Troubleshooting 57
- Troubleshooting 58
- 2 troubleshooting flow chart by symptoms 59
- Data1 temp table conversion table temperature micom port voltage resistance sensor chip px41c 59
- Troubleshooting 59
- Voltage ω voltage ω voltage ω 59
- 2 1 when self diagnosis error occurs 60
- Refer to circuit diagram 60
- Troubleshooting 60
- Voltage at ic10 micom 23 is the same as the value between cn30 5 org and cn30 7 gry 60
- When the r sensor is defective 60
- Data1 temp table 61
- Refer to circuit diagram 61
- Sensor micom connector 61
- Troubleshooting 61
- Voltage at ic10 micom 21 is the same as the value between cn31 1 wht and cn31 2 wht of the cn31 on main pba 61
- Voltage between 4 v 0 v 61
- When the ext sensor is defective 61
- Refer to circuit diagram 62
- Sensor micom connector 62
- Troubleshooting 62
- Voltage at ic10 micom 25 is the same as the value between cn30 3 brn and cn30 7 gry 62
- Voltage between 4 v 0 v 62
- When the f sensor is defective 62
- Data1 temp table 63
- Refer to circuit diagram 63
- Sensor micom connector 63
- Troubleshooting 63
- Voltage at ic10 micom 24 is the same as the value between cn30 4 red and cn30 7 gry 63
- Voltage between 4 v 0 v 63
- When the def sensor is defective 63
- Data1 temp table 64
- Refer to circuit diagram 64
- Sensor micom connector 64
- Troubleshooting 64
- Voltage at ic10 micom 26 is the same as the value between cn30 2 blk and cn30 7 gry 64
- Voltage between 4 v 0 v 64
- When the cool select zone sensor is defective csz models only 64
- 2 2 when the freezer fan does not operate bldc motor 65
- This refrigerator uses the bldc fan motor the bldc motor operates with dc 7 12v the f fan motor generally runs together with the compressor 65
- Troubleshooting 65
- When checking with the self diagnosis 65
- Content to be displayed when checking the self diagnosis function 66
- Troubleshooting 66
- When the refrigerator r fan does not work restricted to r fan applied models only 66
- 2 4 when the c fan does not operate applies to models with c fan 67
- This refrigerator uses the bldc fan motor the bldc motor operates with dc 7 12v the f fan motor generally runs together with the compressor 67
- Troubleshooting 67
- When checking with the self diagnosis 67
- 2 5 when defrost does not work f def heater 68
- Troubleshooting 68
- When there is a trouble in defrosting select the self diagnosis function before turning off the unit and check if there is any defect in the defrost heater if not plug out the unit and do the trouble shooting refer to the self diagnosis function and check the details 68
- 2 6 when there is no power main pba 69
- Caution 69
- Troubleshooting 69
- 2 7 when there is no power inverter pba a 70
- Caution 70
- Inverter pba refer to the operation descriptions and reference section 70
- There is ac230v or dc310v at the inverter pba power circuit so be cautions when repairing the unit or measuring values 70
- Troubleshooting 70
- When checking the 70
- 2 8 when the compressor is not working inverter pba 71
- Troubleshooting 71
- When the inverter pba led is on it indicates that the compressor does operate normally 71
- 2 9 when the compressor is not working inverter pba a 72
- Troubleshooting 72
- When the inverter pba led is on it indicates that the compressor does operate normally 72
- 2 10 when the unit keeps alarming buzzer sound 73
- Troubleshooting 73
- ① when there is ding dong sound not stopping 73
- ② when it keeps beeping 73
- This model has a buzzer affixed on the main pcb if there is no buzzer sound upon button press forced operation or door open disconnect main pcb and check if the buzzer is damaged or there is any defective soldering if it is not a soldering problem it is recommended replacing main pcb due to difficulties in repairing it may not be able to check when it is a closed built in environment and there is lots of noise around 74
- Troubleshooting 74
- ③ no buzzer sound 74
- 2 11 when panel pcb operates abnormally 75
- Troubleshooting 75
- ① when panel pcb does not light up or partially does 75
- ② when panel pcb buttons are not working when the trouble is being remained after the above 75
- 2 12 when the room lamp led does not light up 76
- Door s w 76
- Troubleshooting 76
- V high 76
- 2 13 when fridge damper does not work 77
- Troubleshooting 77
- 2 14 when cool select zone damper does not work applies only to models with csz 78
- Troubleshooting 78
- 2 15 led blinking frequency depending on protecting functions inverter pba 79
- Troubleshooting 79
- 1 part layout main board 80
- Pcb pba diagram 80
- 2 parts layout inverter board 81
- Pcb pba diagram 81
- 3 parts layout inverter board a 82
- Pcb pba diagram 82
- 4 connector layout description main board 83
- Pcb pba diagram 83
- This document can not be used without samsung s authorization 83
- 5 connector layout description main board a 84
- Pcb pba diagram 84
- This document can not be used without samsung s authorization 84
- 6 connector layout description main board twin cooling 85
- Pcb pba diagram 85
- This document can not be used without samsung s authorization 85
- 7 connector layout description inverter board 86
- Pcb pba diagram 86
- This document can not be used without samsung s authorization 86
- 8 connector layout description inverter board a 87
- Pcb pba diagram 87
- This document can not be used without samsung s authorization 87
- 9 connector layout description inverter board 3050 2m a 88
- Pcb pba diagram 88
- This document can not be used without samsung s authorization 88
- 10 connector layout description pba sub 89
- Pcb pba diagram 89
- This document can not be used without samsung s authorization 89
- 11 connector layout description pba coil filter 90
- Pcb pba diagram 90
- This document can not be used without samsung s authorization 90
- 1 wiring diagram a a 91
- This document can not be used without samsung s authorization 91
- Wiring diagram 91
- 2 wiring diagram a 92
- This document can not be used without samsung s authorization 92
- Wiring diagram 92
- 3 3050 2m a 93
- This document can not be used without samsung s authorization 93
- Wiring diagram 93
- 4 3050 2m a 94
- This document can not be used without samsung s authorization 94
- Wiring diagram 94
- 1 pba main 95
- Block diagram 95
- This document can not be used without samsung s authorization 95
- 2 pba main a 96
- Block diagram 96
- This document can not be used without samsung s authorization 96
- 3 pba inverter 97
- Block diagram 97
- This document can not be used without samsung s authorization 97
- 4 pba inverter a 98
- Block diagram 98
- This document can not be used without samsung s authorization 98
- 5 nomenclatrue 99
- Block diagram 99
- Reference information 100
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