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CASE PARTS

CAUTION: Use the part number to order part, not the position number.

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9. EXPLODED VIEW & REPLACEMENT PARTS LIST

316A

316B

607A

624A

624C

624D

626A

106A

315A

400A

501A

411A

501F

303C

318A

303B

314A

300A

312A

317A

304A

103A

S02

S01

S01

105A

283B

283B

328A

207B

103B

207A

271C

271B

271A

271B

315B

315B

315C

315C

323B

329C

420A

309B

319A

319C

408A

503D

410A

409D

409B

158A

405F

404A

405C

332A

135D

405A

S16

B03

B04

S17

S15

158B

145B

B03

409B

106A

120B

145A

406D

610A

610A

406A

282F

405B

329A

103C

135C

402A

402A

410G

406B

S10

S12

S13

S11

S19

S20

S18

S02

S08

B01

S03

S03

B01

S11

S14

262B

B02

B02

S14

262H

310B

327A

610D

610B

301A

S18

313A

249D

249C

610C

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Содержание LFD21860ST

Страница 1: ...ING THE PRODUCT READ THE SAFETY PRECAUTIONS IN THIS MANUAL REFRIGERATOR SERVICE MANUAL COLORS WESTERN BLACK SB TITANIUM TT SUPER WHITE SW STAINLESS ST LFD21860ST LFD25860ST LFD21860SW LFD25860TT LFD25860SB LFD25860SW MODELS ...

Страница 2: ...TS 15 SERVICE DIAGNOSIS CHART 16 REFRIGERATION CYCLE 17 18 OPERATION PRINCIPLE AND REPAIR METHOD OF ICEMAKER 19 22 DESCRIPTION OF FUNCTION AND CIRCUIT OF MICOM 23 40 EXPLODED VIEW AND REPLACEMENT PARTS LIST 41 CONTENTS 2 Please read the following instructions before servicing your refrigerator 1 Unplug the power before handling any elctrical componets 2 Check the rated current voltage and capacity...

Страница 3: ...e EVAPORATOR Fin Tube Type CONDENSER Wire Condenser REFRIGERANT R 134a 115 g LUBRICATING OIL ISO10 280 ml DEFROSTING DEVICE SHEATH HEATER LAMP REFRIGERATOR 60 W 2 EA FREEZER 60 W 1 EA Description LFD21860 LFD25860 Depth w Handles A 30 in 34 1 4 in Depth w o Handles B 27 1 2 in 31 3 4 in Depth w o Door C 23 5 8 in 27 7 8 in Depth Total with Door Open D 42 1 4 in 46 1 2 in Height to Top of Case E 68...

Страница 4: ...or Light Shelves Optibin Crisper Keeps fruits and vegetable fresh and crisp Customcube Icemaker Glide N Serve Ice Bin Durabase Divider Pullout Drawer Tilt Out Door Basket Modular Door Bin Modular Door Bin Bottle Holder Dairy Bin Modular Door Bin Tilting LFC25860 Only ...

Страница 5: ... back until clips snaps out 3 Continue prying back along seam until all clips snap out 3 Remove gasket Pull gasket free from gasket channel on the three remaining sides of door Door gasket replacement 1 Insert gasket bracket clips 1 Insert gasket bracket edge beneath door frame edge 2 Turn upper gasket bracket spring so that both spring ends are in the door channel 3 Push in clip until you hear it...

Страница 6: ...er and working down snap the cover back into door 3 2 DOOR ALIGNMENT If the space between your doors is uneven follow the instructions below to align the doors 1 With one hand lift the door you want to raise at middle hinge 2 With other hand use pliers to insert snap ring as shown 3 Insert additional snap rings until the doors are aligned Three snap rings are provided with the product 6 Figure 7 F...

Страница 7: ...freezer door up to unhook it from the rail support and remove Pull both rails to full extension Step 5 First Remove the gear from the left side first by releasing the tab behind the gear place a screwdriver between the gear and the tab and pull up on the gear Second Remove the center rail Third Remove the gear from the right side by following the same steps for the left side NOTE THIS TAB MUST BE ...

Страница 8: ...l align itself by pushing the rails all the way into the freezer section Pull the rails back out to full extension Step 6 Reinstall the two screws into the guide rails one from each side Step 3 Insert the rail into the left side gear and insert the gear into the clip Step 5 Reinstall the freezer door by inserting the rail tabs into the guide rail Step 7 Reinstall the lower basket and close the fre...

Страница 9: ...ently lift the gear part of rear left and right side of the drawer and pull it out in direction To install reposition the gear part of rear left and right side of the drawer after pulling out both rails as much as possible and gently push down both left and right side while checking the hook on the front part 2 3 1 Hook 9 ...

Страница 10: ...otor Durign the starting operation the PTC allows current flow to both the start winding and main winding 4 2 3 PTC Applied circuit diagram Starting method for the motor 4 2 4 Motor restarting and PTC cooling 1 It requires approximately 5 minutes for the pressure to equalize before the compressor can restart 2 The PTC device generates heat during operation Therefore it must be allowed to cool befo...

Страница 11: ...ay 4 4 TO REMOVE THE COVER PTC 1 Remove the back cover of the mechanical area 2 Disconnect the two connectors on the top of the compressor 3 Loosen two screws on compressor base 4 Use a flat screwdriver to pry off the cover 5 Assembly is the reverse order of disassembly 11 Part Customer part number Lot code date code 330 FBYY S1 BOX98 12345678 Physical termination part number Electrical characteri...

Страница 12: ...5 CIRCUIT DIAGRAM 12 ...

Страница 13: ...ly needs to be checked by an electrician Replace compressor Supply voltage rating with 10 Applied voltage isn t in acceptable range 115V 10 Remove PTC Starter from compressor and measure voltage between terminal C of compressor and terminal 5 or 6 of PTC Check resistance between M C S C and M S in motor compressor Check resistance of two terminals in PTC Starter Check resistance of two terminals i...

Страница 14: ...ure resistance between No 5 and 6 of PTC Starter with a tester Figure 19 Separate OLP from compressor and check resistance value between two terminals of OLP with a tester Figure 20 Observation value is 115V 60Hz 6 8Ω 30 The resistance value is 0Ω short or open Check another electric component Replace OLP Replace PTC Starter Figure 19 Figure 20 ...

Страница 15: ...city Replace indicated component Advise customer that the power supply needs to be checked by an electrician Replace indicated component Cause Check voltage at starting devices Check current flowing in sub coil of compressor Check rating of OLP Fan motor doesn t run Heavy frost buildup on evaproator Wire is open or shorted Coil is shorted or open Open Open Replace defrost heater Replace indicated ...

Страница 16: ...e high Is there a gap in the door gasket Is the unit positioned in a firm and even place Are any unnecessary objects placed behind of the unit Check if the drip tray is not firmly attached Check if the cover of the compressor enclosure in the lower front side is taken out Check if the door gasket is dirty with an item like juice Is the refrigerator level Is there too much food in the refrigerator ...

Страница 17: ...or don t in inlet only temperature The capillary tube is faulty cool normally WHOLE Freezer Flowing sound of refrigerant Equal to ambient Normal discharging of the CLOG compartment and is not heard and frost isn t temperature refrigerant refrigerator don t cool formed MOISTURE Cooling operation Flowing sound of refrigerant Lower than Cooling operation restarts CLOG stops periodically is not heard ...

Страница 18: ...ial Very Fast Inefficient Compressor Partial Restriction Complete Restriction Equalization Test Condenser Temperature None Very Fast Very Slow Very Slow Hotter than Normal Air Low Side Leak Loss of Change Compressor Not Pumping Cap Tube Sound Room Temperature Trace of Oil Undercharge Leak Yes No Faint Fast None to Weak The equalization test is trying to restart a compressor using a start kit after...

Страница 19: ...sition Icemaking Mode Harvest Mode Park Position Fill Test Mode Waits until water becomes cold after starting the icemaking operation Runs MOTOR to drop ice from the tray into the ICE BIN Performs Icemaking Mode after supplying water by operating the SOLENOID in ICE VALVE To operate LINE and SERVICE press and hold the Fill Key for 3 seconds The icemaker will run through 3 stages Harvest Fill Icema...

Страница 20: ... of the Tray with icemaking SENSOR 2 Icemaking starts after completion of the water fill operation 3 The icemaking function is completed when the sensor reaches 7 C 60 to 240 minutes after starting 4 If the temperature sensor is defective the icemaking function will be completed in 4 hours NOTE After icemaker power is ON the icemaker heater will be on for test for 9 sec 7 2 3 Harvest Mode 1 Harves...

Страница 21: ...usted by pressing the fill key repeatedly This changes the time allowed for fill as illustrated in the table below Water supply amount table 21 STAGE TIME TO SUPPLY INDICATIONS REMARKS 1 2 3 6 sec 7 sec 8 sec The water amount will vary depending on the water control switch setting as well as the water pressure of the connected water line ...

Страница 22: ...ozen the ejector will pass through the water When the fill mode begins stage 4 unless the water supply has been shut off added water will overflow into the ice bin If the control doesn t operate normally in the test mode check and repair as needed 4 After water is supplied the normal cycle is followed icemaking harvest fill park position 5 Five seconds after stage 5 is completed the icemaker retur...

Страница 23: ...tivate this function you need to press the ICE PLUS key and the icon will turn ON This function will remain activated for 24 hours The first three hours the compressor and freezer fan will be ON The next 21 hours the freezer will be controlled at the lowest temperature After 24 hours or if the iICE PLUS key is pressed again the freezer will return to its previous temperature 5 During the first 3 h...

Страница 24: ...ed a Ding Dong sound is produced 8 1 8 Defrosting removing frost 1 Defrosting starts each time the compressor running time reaches 7 hours 2 For initial power on or for restoring power defrosting starts when the compressor running time reaches 4 hours 3 Defrosting stops if the sensor temperature reaches 8 C or more If the sensor doesn t reach 8 C in 2 hours the defrost mode is malfunctioning 4 Def...

Страница 25: ...d 25 OPERATING ORDERS Initial power on Power ON in 0 5 sec in 0 5 sec Total load OFF Compressor ON Freezer fan ON in 7 min in 0 5 sec Compressor ON Freezer fan ON Power ON Compressor ON Freezer fan ON Defrosting heater ON Defrost heater OFF in 0 5 sec in 0 5 sec in 0 5 sec in 10 sec Temperature of defrosting sensor is 45 C or more when unit is newly purchased or when moved Temperature of defrostin...

Страница 26: ...d freezer display ERROR CODE on display panel Note 1 Room temperature sensor is not indicated on the failure indicating part but indicated in checking display When pressing for more than the warmer key of refrigerator temp and the warmer kye of freezer temp for more than 1 second LED check function If press and hold the warmer key of refrigerator temp and the warmer key of freezer temp for a secon...

Страница 27: ...n error code is displayed the test mode will not be activated Freezer Fan Variable RPM Check To check the variable rpm press and hold the WARMER keys of both the REF TEMP and FRX TEMP The fan speed will change low to high or high to low for 30 seconds before reverting to its original setting Demonstration Display MODE 1 To enter this mode raise either the Refrigerator or Freezer temperature to its...

Страница 28: ... and the MICOM and IC 5 Vdc The voltage for each part is as follows VA1 is a part for preventing over voltage and noise When 385V or higher power is applied the inside elements are short circuited and broken resulting in blowout of the fuse in order to protect the elements of the secondary part of the TRANSFORMER 28 PART VA 1 CE 3 CE 4 CE 5 VOLTAGE 115 Vac 12 Vdc 15 5 Vdc 5 V ...

Страница 29: ...ot work 8 2 3 Reset Circuit The RESET circuit allows all the functions to start at the initial conditions by initializing various parts including the RAM inside the MICOM IC1 when the power is initially supplied or the power supply to the MICOM is restored after a momentary power failure For the initial 10ms of power supply LOW voltage is applied to the MICOM RESET terminal During a normal operati...

Страница 30: ...ge of speed for the fan motor and applies DC voltage up to 7 5V 16V to motor 3 This circuit prevents over driving the fan motor by cutting off power applied to the fan motor in the lock of fan motor by sensing the operation RPM of the fan motor 30 LOAD TYPE COMP NO 16 NO 11 NO 12 NO 13 NO 14 NO 15 1V or below 12V DEFROSTING HEATER LAMP F LAMP R WATER VALVE VALVE2 FRENCH DOOR HEATER Measurement Loc...

Страница 31: ...2 Open Door Detection Circuit Check 31 PIN NO 30 PIN NO 27 Closed 5 V Open 0 V Freezer Refrigerator Door Measurement Location ...

Страница 32: ... Opening or short state of each temperature sensor are as follows 8 2 6 Refrigeration Compartment Stepping Motor Damper Circuit The circuit shown below is the damper circuit to regulate the refrigerator temperature 32 SENSOR CHECK POINT NORMAL 30 C 50 C SHORT CIRCUITED OPEN Freezer sensor POINT Voltage Refrigerator sensor POINT Voltage 0 5 V 4 5 V 0 V 5 V Defrosting sensor POINT Voltage Room Tempe...

Страница 33: ...speed Measure the F SENSOR SUPER FROST SENSOR R1 R2 SENSOR after disconnect CON5 of PWB ASSY MAIN TEMPERATURE RESISTANCE OF FREEZER RESISTANCE OF REFRIGERATOR SENSOR DEFROST SENSOR ROOM SENSOR 20 C 22 3 KΩ 77 KΩ 15 C 16 9 KΩ 60 KΩ 10 C 13 0 KΩ 47 3 KΩ 5 C 10 1 KΩ 38 4 KΩ 0 C 7 8 KΩ 30 KΩ 5 C 6 2 KΩ 24 1 KΩ 10 C 4 9 KΩ 19 5 KΩ 15 C 3 9 KΩ 15 9 KΩ 20 C 3 1 KΩ 13 KΩ 25 C 2 5 KΩ 11 KΩ 30 C 2 0 KΩ 8 9 ...

Страница 34: ...C or Replace OLP PTC after compressor shuts off compressor are failed Replace main PWB don t press the key and wait Connection wire is defective Check the connection of the black wire of the main PWB connector CON2 2 If refrigerant is leaking Measure the amount of frost Refrigerant leakage Replace the leaking part and sticking on evaporator replace any lost refrigerant and the surface temperature ...

Страница 35: ...n Door liner damaged Replace door liner door is closed DEFROSTING is NO defrosting 1 If heater emits heat USE TEST MODE3 Heater disconnection Replace heater defective forced defrosting Temperature fuse Replace temperature is blown fuse Connection is poor Check evaporator connection and wire of main PWB connector Defrost sensor is defective Replace defrost sensor Heater relay is poor Replace RY2 of...

Страница 36: ...8 5 MAIN PWB ASSEMBLY AND PARTS LIST 8 5 1 Main PWB Assembly 36 ...

Страница 37: ...8 5 2 Replacement Parts List 37 ...

Страница 38: ...8 5 3 PWB Assembly Display And Parts List 38 ...

Страница 39: ...8 6 PWB DIAGRAM 8 6 1 PWB Main Assembly 39 ...

Страница 40: ... 40 ...

Страница 41: ...A S02 S01 S01 105A 283B 283B 328A 207B 103B 207A 271C 271B 271A 271B 315B 315B 315C 315C 323B 329C 420A 309B 319A 319C 408A 503D 410A 409D 409B 158A 405F 404A 405C 332A 135D 405A S16 B03 B04 S17 S15 158B 145B B03 409B 106A 120B 145A 406D 610A 610A 406A 282F 405B 329A 103C 135C 402A 402A 410G 406B S10 S12 S13 S11 S19 S20 S18 S02 S08 B01 S03 S03 B01 S11 S14 262B B02 B02 S14 262H 310B 327A 610D 610B ...

Страница 42: ...FREEZER PARTS CAUTION Use the part number to order part not the position number 42 145C 250C 250D 136B 145G 250D 136A 237C 131A 250E 250C ...

Страница 43: ...er to order part not the position number on some models 43 145E 248H 162B 145D 162A 160C 155J 146B S13 S13 167B 154A 154B 248A 141B 141C 141A 146A 141B 141C 141A 141B 141C 141A 141B 141C 141A 147C 147B 147A 141D 160B 151A 151C 151D 151D 151F 151F ...

Страница 44: ...ice 44 249H 249F 249B 250B 250B 249G 249E 249A 250A 233A 234A 234C 233D 231A 233B 233C 231B 241C 237A 241C 241C 230B 241A 241B 241C 237A 241C 243A 243B 243A 203A 201A 243C 212G 230A 312B S25 S26 S25 281C S34 281F S34 281E 281D 281F 243B 205C 205B 205A 615A 262C 262C 312C 200A 244E 244E 212D 234D 234B 243C 281G ...

Страница 45: ... CAUTION Use the part number to order part not the position number 45 S13 S31 623B 616H 616F 619E 619D 627B 616E 623A 603B S32 619A S31 S31 S31 S30 S31 627A S31 616J 625A 616C 616D 616F 603A 616H 623B 617A 600A 608B 602A 616K ...

Страница 46: ... 46 DISPENSER PARTS CAUTION Use the part number to order part not the position number 293A 290A 291A 279A 295A 403A 292A 294A 279C 616A S27 ...

Страница 47: ...P No 3828JD8990F APR 2006 Printed in Korea ...

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