Gebruiksaanwijzing /service van het product LRTN22310 van de fabrikant LG Electronics
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CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. REFRIGERATOR SERVICE MANUAL models LRTN19310 ** LR TN22310 **.
SAFETY PRECAUTIONS ....................................................................................................................................................... 2 SPECIFICA TIONS...............................................................
Ref. No.: 19Cuft / 22Cuft - 3 - 1. SPECIFICA TIONS ITEMS SPECIFICA TIONS DOOR DESIGN Slide Rounded DIMENSIONS (mm) 755 X 806 X 1664 (W X D X H ) - 19 Cu.
2. P ARTS IDENTIFICA TION - 4 - FREEZER COMPARTMENT REFRIGERATOR COMPARTMENT Ice Bin Freezer Shelf Digital Sensor Control Snack Corner Shelves Crisper Keeps fruits and vegetables fresh and crisp.
3-1 DOOR ● Freezer Door 1. Remove the hinge cover by pulling it upwards. 2. Loosen hexagonal bolts attaching the upper hinge to the body and lift the freezer door . 3. Pull out the door gasket to remove from the door foam assembly . ● Refrigerator Door 1.
3-3 F AN AND F AN MOTOR 1. Remove the freezer shelf. (If your refrigerator has an icemaker , remove the icemaker first) 2. Remove the grille by pulling it out and by loosening a screw . 3. Remove the Fan Motor assembly by loosening 4 screws and disassemble the shroud.
4-1 COMPRESSOR 4-1-1 Role The compressor intakes low temperature and low pressure gas from the evaporator of the refrigerator and compresses this gas to high-temperature and high-pressure gas. It then delivers the gas to the condenser . 4-1-2 Composition The compressor includes overload protection.
4-3 OLP (OVERLOAD PROTECTOR) 4-3-1 Definition of OLP (1) OLP (OVERLOAD PROTECTOR) is attached to the Compressor and protects the Motor by opening the circuit to the Motor if the temperature rises and activating the bimetal spring in the OLP .
GOOD MODEL 5. CIRCUIT DIAGRAM - 9 -.
6. TROUBLESHOOTING - 10 - 6-1 COMPRESSOR AND ELECTRIC COMPONENTS Readings OK Open or short 1 2 3 4 5 2 5 5 3 5 4 5 5 1 4 3 YES YES Readings OK Readings OK Open or short Open or short YES YES NO NO Power Source. No V oltage. (Reated V oltage ± 10%)? Replace OLP .
- 11 - 6-2 PTC AND OLP 6 5 Shows continuity Open Normal operation of Compressor is impossible or poor . Separate PTC-Starter from Compressor and measure resistance between No. 5 and 6 of PTC-Starter with a T ester .(Figure 12) Separate OLP from Compressor and check resistance value between two terminals of OLP with a T ester .
- 12 - ▼ Not cooling at all ▼ Poor cooling performance Compressor doesn't run. Compressor runs poorly . Check a starting voltage. Check for open short or incorrect resistance readings in the following components a. Starting devices b. OLP c. Compressor coil d.
6-4 SERVICE DIAGNOSIS CHART - 13 - COMPLAINT POINTS TO BE CHECKED REMEDY ● Other possible problems: Check if frost forms in the freezer . Check Components of the defrosting circuit. Check the refrigeration system. Check the Thermistor . Not defrosting.
6-5 REFRIGERA TING CYCLE - 14 - ▼ T roubleshooting Chart ▼ Leakage Detection YES YES Check if compressor runs. Check if frost forms in Evaporator . Observe the discharged amount of Refrigerant. Inject refrigerant in compressor and check cooling operation.
- 15 - NO. ITEMS UNIT ST ANDARDS PURPOSES REMARKS ▼ General Control of Refrigerating Cycle Pipe and piping system opening time Welding N 2 sealed parts Refrige- ration Cycle Refrigerant weighing Drier replacement Leak check 1 2 3 4 5 6 7 Min. Nitrogen pressure Confirm N 2 leak Min.
7-1 FUNCTION 7-1-1 Function 1. When the appliance is plugged in, it is set to "3" for the Refrigerator . Y ou can adjust the Refrigerator control temperature by pressing the ADJUST button. 2. When the power is initially applied or restored after a power failure, it is automatically reset to "3".
- 17 - 7-1-4 Defect Diagnosis Function 1. Defect diagnosis functions are easy SVC when defects occur which can affect product performance. 2. When a defect occurs, the buttons will not operate; but the tones. such as "ding". will sound. 3. When the defect CODE removes the sign, it returns to normal operation (RESET).
7-1-5 TEST Mode 1. The T est mode allows checking the PCB and the function of the product as well as finding out the Defective part in case of an error . 2. The test button is on the main PCB of the refrigerator (T est S/W). The test mode will be cleared in 2 hours regardless of the type of test mode.
7-2 PCB FUNCTION 7-2-1 Power Circuit 1. Power is supplied to the control board at pins 1 and 5 of connector #4. - 19 -.
7-2-2 Load / Buzzer Drive & Open Door Detection Circuit 1. Load Drive Condition Check T o measure outputs of the control board, check voltages between the pins for the following components: NOTE: When the door of the freezer/refrigerator is left open for 7 minutes or longer , the lamp of the freezer/refrigerator turns off automatically .
2. Open Door Circuit (Door Monitor Circuit) - 21 - Freezer or Refrigerator Measurement between pins 5 and 6 at Con 3 Both Closed 0 volts One door open 5 volts.
7-2-3 T emperature Sensor Circuit V oltage supplied to each sensor wil range between 0.5 volts -22 ° F(-30 ° C) and 4.5 volts 122 ° F(50 ° C) depending upon the temperature in the compartments. A measurement of 0 volts indicates a short in the sensor circuit.
- 23 - 7-3 RESIST ANCE SPECIFICA TION OF SENSOR • The resistance of the SENSOR has a ± 5% common difference. • Measure the resistance of the SENSOR after leaving it for over 3 minutes in the measuring temperature. This delay is necessary due to sensor response speed.
- 24 - 7-4 TROUBLESHOOTING COMPLAINT Electronic Display not operating correctly Not Cooling Not cold enough Not defrosting 1. No Display at all 2. Partial or abnormal display 1. Display on but compressor not operating 2. Display on compressor is operating 1.
7-5 MAIN PWB ASSEMBL Y AND P ARTS LIST 7-5-1 Main PWB Assembly - 25 -.
CASE P ARTS CAUTION: Use the part number to order part, not the position number . - 26 - 8. EXPLODED VIEW & REPLACEMENT P ARTS LIST 106A 106A 315A 401A 304A 501A 411A 410G 501F S01 309A 318A 308A .
FREEZER P ARTS CAUTION: Use the part number to order part, not the position number . - 27 - 405C 404A 405A S20 330B S21 332A 149A 149B 284C 284A 329A 110D S22 147B 125A 131A.
REFRIGERA T OR P ARTS CAUTION: Use the part number to order part, not the position number . - 28 - 128A 170A 141B 141C 141A 141B 141C 141A 141C 141A 141B 141B 141C 141A 141C 141A 141B 154A 167B 151A 1.
DOOR P ARTS CAUTION: Use the part number to order part, not the position number . - 29 - 241C 241C 205D 233A 203A 200A 201A 231A 281D 281D 281E 281E 234B 244A * S25 * S25 * 244B * S25 * 212A * S25 * S.
P/No. 3828JL8015A MAR., 2003 Printed in Korea.
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