LG LRTB1821BK precautio Servicing Precautions Download Page 1 | Manualshive

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Summary of Contents for LRTB1821BK precautio

Page 1: ... the melted alloy is sucked into the tubes and blocks them the pressure must be rebalancod when vacuum is in the system when soldering As soon as the vacuum operation is over add the quantify in grams of R 134a to the refrigeration system Remember that every system has an exact quantity of R 134a that can be added with a tolerance of 5 grams Figure 4 TO THE R t34a CYLINDER L _r _ TOTHE REFRIGERATI...

Page 2: ...LUG TYPe EART_ pART AND ICE MAKER OPTI _N pART O_ CIRCUIT DIAGR_J_ ARE SUBJECT TO CHANGE IN OIFFERENT LOCALITI S WH WHITE BL BLUE RD RED GY GRAYPURPLE YL YELLOW BO BRIGHT ORANGE BK BLACK 8N BROWN PR PURPLE P_ PINK GN GREEN WA_R SUPPLYING TIME CONTROL OPTION CAUTION PleaseunphJg the power COl from thewallouter SWITC _NO TIME GWl Sw2 SW3 OFF OFF OFF 10 5 sec ON OFF OFF 9 sec OFF ON OFF 10 SeC ON ON ...

Page 3: ...mp Freezer Door Bin Door Cooling On the refrigeratordoor the co dair passageway is installed to supply cold _ir to the doors deof the refrigerator compartment Can SeP er Shelves Egg Box Snack Corner Corner Wine Rack Adjustable Door Bin Cdsper Used to keep fruits and vegetables fresh and crisp Base Grille Push the grilletoward the refrigerator untilit snaps into place Rack Leveling Screw Inside 5 ...

Page 4: ... to the body to remove the refrigerator door only 3 2 DOOR SWITCH 1 To remove the door switch pull out itwith a slotted type driver as shown in figure 9 2 Disconnect the lead wire from the switch LEAD WIRE i _ DOOR SWITCH 12 _ i i Figure 9 3 3 THERMOSTAT 1 Remove Control Box R by loosening 2 screws attached to ceiling of Refrigerator compartment Figure 10 2 Separate the thermostat and dial knob F ...

Page 5: ...on of heat from the Heater 1 Pull out the grille assembly 2 Separate the connector connected with the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap Figure 14 SHROUD F Figure 13 DEF_HERMO FUSE M HOLDER FUSE Figure 14 3 6 REFRIGERATOR ROOM LAMP REFRIGERATOR ROOM LAMP Figure 16 1 Unplug the power cord from the outlet 2 Remove refrigerator shelves 3 Relea...

Page 6: ... flows in both main ceil and sub ceil After the starting is over the current in subceil is cut off The proper features of PTC play all the above roles So PTC is used as a motor starting device 4 2 3 PTC Applled Circuit Diagram According to Starting Method for the Motor OVERLOAD PROTECTOR O L P r cm COM RESSOR 5 MOTOR PTC STARTER HERMETIC TERMINAL RSlR Figure 19 4 2 4 Motor Restarting and PTC Cooli...

Page 7: ...mposition and connection diagram of OLP 5 CIRCUIT DIAGRAM CONTACTING POINT COVER __BIMETAL BIMETAL ADJUST SCREW HEATER Figure 21 CIRCUITDIAGRAM 1 THERMOSTAT DEFROST TIMER _r _lG_ 1_4 Lt _ _ _ I I I I _ I E I I r_ Ir _l _ B_ _ _ _ I1_ _ _ _ o _ l_l _ _ I_I_ _ IF_ q _ I L i C_PACITOR p _RT P TC STARER EARTH PAR1 LAMP F pART CAPACITORS THE PLUG _PE EARTH PART ANO ICE MAKE R OPT_3N PART ON CIRCUIT DIA...

Page 8: ...I Check the r_ check the resistance resistance of among M C S C and Motor M S in Motor Compressor Compressor Check the i _ Check the resistance I resistance of of two terminals in PTC Starter PTC Starter Oe0 oooCoi o or YES I Replace NO _ PTC Starter YES 4 Check OLR I _ Check if applying _ OLP works within _ YES _11 _ a regular OLR L 130 sec in forcible OLP I I I operation by turning Replace OLR I...

Page 9: ...lace OLP Normal operation of __ _ the Defrost Timer is impossible No defrosting Poorcooling k Position the Cam Shaft to the point of first click sound and check the current flowing between terminals No 1 brown and NO 2 bright orange Next position the Cam Shaft to the point of second click sound and check the current flowing between terminals No 1 brown and No 4 black Figure 23 _ The resistance is ...

Page 10: ...Check current flowing _ Shorted in sub coil of Compressor _ Check capacity of OLR I_ Lack of capacity __ The items described _ Coil of motor above are normal Compressor Cooling ability is poor Fan motor ___ doesn t run I Check current flowing _ of the door S W Check current flowing in the Fan Motor q uch fr tisiflupon Check the running the EVAPORATOR condition of Timer Check current flowing of the...

Page 11: ... if the door is closed it firmly Dew forms Check if ambient temperature and humidity Wipe dew with a dry cloth This occurrence in the Exterior Case of surroumcling air are high is solved naturally in low temperature and humidity Is there gap in the door gasket Fill up the gap Abnormal Is the set positioned in a firm and even place Adjust the Adjust Screw and position noise I in the firm place Are ...

Page 12: ...o ambient temperature A little higher then ambient temperature Equal to ambient temperature Lower than ambient temperature A little higher ambient temperature Equal to ambient temperature REMARKS Refrigerant level is low due to a leak Normal cooling is possible when injecting of Refrigerant the regular amount No discharging of Refrigerant Normal cooling is possible when injecting of Refrigerant th...

Page 13: ...low pressure sides Vacuum efficiency can be improved are evacuated at the same by operating compressor during time for models above 200 evacuation Vacuum EA Use R 134a exclusive To protect mixing The rubber pipes for R 12 refrigerant piping manifold of mineral and shall be melted when they are used for ester oils R 134a refrigerant causes of leak Pipe EA Use R 134a exclusive To protect R 12 couple...

Page 14: ...8 EXPLODED VIEW REPLACEMENT PARTS LIST The parts of refrigerator and the shape of each part are subject to change in different localities Capacitors and fuse are optional parts GR T622 GR T722 I I 16 ...

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