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2. FUNCTIONS

- ERROR DISPLAY 
   - If appliance has any errors, LED on the Main PCB is flickering.   
   - If the appliance is normal (no error),  LED IS off. 
 
A. 'R1' ERROR 
  : It happens when R-Sensor is OPEN or SHORT. 
  (1) LED DISPLAY: Shortly flickering(0.3sec.) 1 times. 
  (2) CONTROL:  
      Controlled by the following condition of RT 
                                                                                       
 
 
 
 
     

 

If 'RT ERROR' happens at the same time, “COMP. ON/OFF Operating Time” is 16min/24min. 

  (3) RELEASE: When R-Sensor is working normally. 
 
B. 'RT' ERROR 
  : It happens when RT-Sensor is OPEN or SHORT. 
  (1) LED DISPLAY: Shortly flickering(0.3sec.) 2 times. 
  (2) CONTROL: Delete the conditions of 'RT-sensor Control' and operate normally. 
  (3) RELEASE: When RT-Sensor is working normally. 
 
C. 'd1' ERROR 
  : It happens when D-Sensor is OPEN or SHORT. 
  (1) LED DISPLAY: Shortly flickering(0.3sec.) 3 times. 
  (2) CONTROL: Return to next limit defrost time (40 min) 
  (3) RELEASE: When D-Sensor is working normally. 
 
D. 'DR' ERROR  
   : It happens when the system senses door opens more than 1 hour.  
   (1) LED DISPLAY: Shortly flickering(0.3sec.) 4 times. 
   (2) CONTROL: Delete function relating to door switch sensing 
   (3) RELEASE:  When sensing close from door S/W. 
 
 
 

 When pusing 'TEST KEY' on the main PCB,  

       LED is long(1.0sec.) flickering several times. 
    ex.  'Forced Defrost Mode:' long flickering 2 times    

 

LED Lamp 

CONTROL OBJECT 

INPUT 

Sensor Error 

2-9. Error Display

 

6/34 

~13 

10/30 

~19 

16/24 

~29 

20/20 

29

~

 

    COMP. Operating ON/OFF TIME 
                                        (unit:min.) 

    RT sensor TEMP        (unit:

℃)

 

To Confirm Errors: 

Check LED on the main PCB   
 

- The Priorities of Error : 
    R1

RT

D1

DR 

DR Switch 

4times 

DR 

D sensor 

3times 

d1 

RT sensor 

2times 

RT 

R sensor 

1time 

R1 

ERROR 

LED 

CODE 

flicker 

17

Summary of Contents for RN-531N

Page 1: ...Service Manual RN 531N RN 532N RN 533N RN 534N RN 535N RN 536N SN RN5316N001...

Page 2: ...4 Function of Low Ambient Temperature 14 2 5 Time Saving Function 15 2 6 Control of R Sensor OFF Point 16 2 7 Error Display 17 3 DISASSEMBLY 3 1 Door Switch 18 3 2 Cover Multi Flow Duct As in Fresh fo...

Page 3: ...Refrigerator R 600a Refrigerant Charge 0 044kg Evaporator Type Fin Type Condenser Type Natural Convection Cooling System Desiccant Molecular Sieve xH 9 Capillary Tube unit mm ID0 7 x T0 55 x L2290 He...

Page 4: ...amp Window 3 Multi Duct 4 Knob R Control 5 Cover Vegetable Case 6 Vegetable Case 7 Refrigerator Pocket R 8 Refrigerator Pocket J 9 Freezer Shelves 10 Freezer Case A 11 Freezer Case B 12 Adjusting Leg...

Page 5: ...Capacitor Run 2 Power Cord 3 Switch P Relay As 4 Earth Comp Wire 5 Fixture Compressor Washer 6 Drain Hose 7 Compressor Absorber 8 Suction Pipe As 9 Dryer As 10 Case vaporization As 11 Pipe connector...

Page 6: ...1 4 Refrigerant Cycle Welding Point 1 SPECIFICATIONS Copper Welding Ag 5 5 Point Silver Welding Ag 30 3 Point Suction Pipe Capillary Tube Evaporator Compressor Pipe connector A Dryer 6...

Page 7: ...target temperature not actual temperature within refrigerator Refrigeration function is weak in the initial time Please adjust temperature as above after using refrigerator for minimum 1 2 days 1 SPE...

Page 8: ...1 6 Wiring Diagram 1 SPECIFICATIONS 8...

Page 9: ...1 7 Main PCB Circuit Diagram 1 SPECIFICATIONS 9...

Page 10: ...on the COVER M FLOW DUCT 2 1 PCB VOLUME Control PCB VOLUME R SENSOR DIAL KNOB COVER M FLOW DUCT AS Air Duct Device in the Refrigerating Compartment Temperature is controlled by PCB Volume assembled wi...

Page 11: ...Temp Difference 8 0C E Temperature of Freezer Control It will be only controlled by using KNOB F LOUVER in the Freezer Comaprtment COMPRESSOR FAN CONTROL OBJECT INPUT Turn DIAL KNOB R sensor 2 2 Tempe...

Page 12: ...and Control Dial Knob MIN MAX 1 times 2 or by press Test Key 3 times on Main PCB If appliance has any error Forces Defrost Mode don t start Process same as Normal Defrost Mode except PRE COOL Heater...

Page 13: ...ccumulated Compessor Run Times R R O C Running Rate of Compressor RT Ambient temperature Start Yes No A C R T 6 8 10 12hours No Yes Any Error No Yes R R O C per 2hrs of A C R T 90 No Yes Accumulated D...

Page 14: ...Function of Low Ambient Temperature RT COMP It takes several minutes to protect Compressor 1 6 minutes after Comp off 2 30 minutes at operation of Low RT but 6 minutes when the doors open more than 2...

Page 15: ...30 min If you press FAST KEY continuously you can reduce 30 minutes on each 2 5 seconds with buzzer B Example for usage when reduce test time CONTROL OBJECT INPUT FAST KEY 2 7 Time Saving Function Te...

Page 16: ...service 1 Resistance R25 Default resistance 31 4Kohms 2 Resistance R26 Cut the J1 off to reduce basic resistance by 1 5 C 2Kohms up 3 Resistance R27 Cut the J2 off additionally to reduce basic resista...

Page 17: ...hen D Sensor is OPEN or SHORT 1 LED DISPLAY Shortly flickering 0 3sec 3 times 2 CONTROL Return to next limit defrost time 40 min 3 RELEASE When D Sensor is working normally D DR ERROR It happens when...

Page 18: ...Inuput a thin driver in the upper part as above picture And lift up Door Switch carefully Inuput a thin driver in the lower part as above picture And lift up Door Switch carefully Disconnect the wire...

Page 19: ...osition on Cover 2 Lever two window lock with flat driver Number of the marks are model dependent 2 Push the cover inside and Unlock Open window turning on the axis A Remove two screw cap with flat dr...

Page 20: ...the Louver F As from Freezer Unscrew to disassemble as each component part Remove the Louver F As pulling the top side Unlock carefully especially inside 3 locks Disconnect Fan motor wire housing Defa...

Page 21: ...od compartment Tilt down the appliance to the rear And unscrew middle hinge Don t forget the washer for middle hinge Lift up top cover hinge to remove Unscrew and remove top hinge Lift up middle cover...

Page 22: ...rew and remove under hinge Turn the Adjusting Leg Left CCW and Remove Don t forget the washer for under hinge The washer for under hinge s bigger than middle one Remove door in frozen food compart men...

Page 23: ...d e f g Refrigerator Door 1 3 Move following Door Accessories in the opposite position Cover Bushings i Door Stoppers j 1 4 Change the position of following parts each other and assemble them Adjustin...

Page 24: ...d avoid any naked flames or potential sources of ignition and air the room in which appliance is standing for several minutes In order to avoid the creation of a flammable gas air mixture if a leak in...

Page 25: ...Time 10min Coupling cap and gas charging cap should be seperated before welding NO SVC process Image Details 1 Connect the discharging hose to the pinch plier 2 The outlet of discharging hose should...

Page 26: ...rging pipe OUT DOOR fire explosion as leakage gas in the room 1 Discharge the R 600a ref to outdoor Befor connecting the vacuum pump It should have enough time more than 7 minutes to discharge 1 And t...

Page 27: ...e pinch plier charging pipe OUT DOOR NO SVC process Image Details 1 Reassemble the valve ass y with coupling pipe to clockwise 2 Connect the blue hose of the guage to the coupling pipe and the yellow...

Page 28: ...er of refrigerator and then start to charge the ref 10min Charge the ref until going out the water vapour condensing on the can outlet 1 Check the leakage You must rework from Step 1 when the leakage...

Page 29: ...O D21 x I D8 MFZN 1 1 1 1 1 3012764100 HARNESS D SENS RFP 340 NBC K43 24 3017070020 EVA AS RFP 301 A 230V 130W 3012831200 HEATER SHEATH AS RFP 301 230V 130W BASE COMP AS 3010365500 RFP 301 301119VJ00...

Page 30: ...ET FAN MOTR PP NATURAL T2 0 3011835900 FAN OD100 SHAFT OD3 17 3013415800 KNOB F CONTL PP 3010564910 CASE ICEING AS CASE ICEING VINYL B1 301119V100 CASE F A GPPS CRYSTAL 301119V110 GPPS GRAY 301119V120...

Page 31: ...NTL HIPS PRINT GPPS BLUE COVER M FLOW DUCT AS RFP 301 30143KW260 PCB VOLUME AS BALLISTA VOLUME 3017861100 SHELF R AS RFP 241 301119V400 CASE GLAS VEGTB T3 2 301149C400 C3 301119V000 CASE VEGTB GPPS CR...

Page 32: ...PSH1P D1 1 3012331000 GASKET R DR AS RFP 301 GRAY 3012331010 RFP 301 BLACK D1 D1 2 3011450300 COVER CAP HOLE A ABS WHITE 1 3011450310 ABS SILVER 3011450340 ABS BLACK ASSY F DR WHITE DWG1C BLACK BLH1C...

Page 33: ...100B9YL0 WHITE DWH1L 30100B9YC0 AL SILVER ASG4P 1 3011450340 ABS BLACK 30100B9YD0 PLATINUM SILVER PSH1P 301099BV00 CAP DR ABS WHITE 30100B9YF0 WHITE DWG1C 301099BV10 301099BV20 30100B9X20 ABS SILVER A...

Page 34: ...1 1 BLACK BLH1C NO PART CODE PART NAME SPEC D8 30100B9X10 ASSY F DR WHITE DWG1C 30100B9YG0 AL SILVER ASG4P 30100B9YH0 TITANIUM SILVER TSH1P 30100B9YJ0 301099BV20 ABS SILVER ABS BLACK D7 30100B9YK0 PLA...

Page 35: ...Door Compartment NO PART CODE PART NAME 30000CPM10 AL SILVER ASG4P 30000CPM20 TITANIUM SILVER TSH1P 30000CPM30 D10 30000CPM00 ASSY R DR WHITE DWG1C PLATINUM SILVER PSH1P BLACK BLH1C 30000CPP40 PLATINU...

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