LG HBLG8000R Instruction Manual Download Page 27 | Manualshive

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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

5.2 ELECTRONIC CONTROL DEVICE

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Summary of Contents for HBLG8000R

Page 1: ...nditioner SVC MANUAL Exploded View MODEL HBLG8000R CAUTION Before Servicing the unit read the safety precautions in General SVC manual Only for authorized service personnel Internal Use Only http biz lgservice com ...

Page 2: ...NIC CONTROL DEVICE 27 5 3 COMPONENTS LOCATION OF MAIN P C B ASM 28 5 4 COMPONENTS LOCATION OF DISPLAY P C B ASM 28 6 EXPLODED VIEW 29 1 PREFACE This SERVICE MANUAL provides various service information including the mechanical and electrical parts etc This room air conditioner was manufactured and assembled under a strict quality control system The refrigerant is charged at the factory Be sure to r...

Page 3: ...S SLIT FIN TYPE 2 ROW 16 STACKS LOUVERED FIN TYPE BLOWER PROPELLER TYPE FAN WITH SLINGER RING 3 3 6 POLES TOUCH REMOTE CONTROL THERMISTOR VERTICAL LOUVER RIGHT LEFT HORIZONTAL LOUVER UP DOWN SLIDE IN OUT CHASSIS OVERLOAD PROTECTOR INTERNAL THERMAL PROTECTOR 3 WIRE WITH GROUDING ATTACHMENT PLUG CORD CONNECTED TYPE DRAIN PIPE OR SPLASHED BY FAN SLINGER 64 29 181 2 x 137 8 x 2011 16 470 x 353 x 525 1...

Page 4: ...in later and by 2 F after another 30 min Power Temp Fan Speed Timer Mode Energy Saver TEMPERATURE SETTING This button can automatically control the temperature of the room The temperature can be set within a range of 60 F to 86 F by 1 F Select the lower number for lower temperature of the room FAN SPEED Everytime you push this button it is set as follows High F3 Low F1 Med F2 High F3 POWER To turn...

Page 5: ...to the removal procedure above 2 1 3 CONTROL BOX 1 Disconnect the unit from the power source 2 Remove the front grille Refer to section 2 1 1 3 Remove the cabinet Refer to section 2 1 2 4 Remove the screw which fastens the control box cover 5 Remove the housing which connects motor wire in the control box 6 Remove the 3 leads from the compressor Refer to section 2 3 1 7 Discharge the capacitor by ...

Page 6: ... 9 Pull out the hook of orifice by pushing the tabs and remove it See Figure 5 10 Remove the clamp with a hand plier which secures the blower 11 Remove the blower 12 Remove the 4 screws which fasten the air guide from the barrier 13 Move the air guide backward pulling out from the base pan 14 Re install the components by referring to the removal procedure above 2 2 2 FAN AND SHROUD 1 Remove the ca...

Page 7: ...as a WATCO A 1 before venting the FreonTM Leave the valve in place after servicing the system 3 Remove the overload protector Refer to section 2 3 1 4 After purging the unit completely unbraze the suction and discharge tubes at the compressor connections 5 Remove the 3 nuts and the 3 washers which fasten the compressor 6 Remove the compressor See Figure 8 7 Re install the components by referring t...

Page 8: ...tion marked on the supply cord attached at the unit 2 3 5 THERMISTOR 1 Remove the control box Refer to section 2 1 3 2 Open the control box Refer to section 2 3 3 3 Disconnect the thermistor terminals from main P W B assembly 4 Remove the thermistor 5 Re install the components by refereing to the above removal procedure See Figure 11 2 3 6 MOTOR 1 Remove the cabinet Refer to section 2 1 2 2 Remove...

Page 9: ...s which fasten the evaporator 3 Move the evaporator sideways carefully Refer to section 2 2 1 4 After discharging the refrigerant completely unbraze the interconnecting tube at the evaporator connections 5 Remove the evaporator carefully 6 Re install the component by referring to notes See Figure 14 2 4 3 CAPILLARY TUBE 1 Remove the cabinet Refer to section 2 1 2 2 After discharging the refrigeran...

Page 10: ... See figure 15B Open valve C Discharge the line at the manifold connection 5 The system is now ready for final charging 6 Recharge as follows 1 Refrigeration cycle systems are charged from the High side If the total charge cannot be put in the High side the balance will be put in the suction line through the access valve which you installed as the system was opened 2 Connect the charging cylinder ...

Page 11: ...ILLARY TUBE CONDENSER HIGH PRESSURE SIDE SEE INSETS BELOW MANIFOLD GAUGE B Equipment needed Vacuum pump Charging cylinder Manifold gauge Brazing equipment Pin off tool capable of making a vapor proof seal Leak detector Tubing cutter Hand Tools to remove components Service valve Figure 15A Pulling Vacuum Figure 15B Charging A B EXTERNAL VACUUM PUMP A CHARGING CYLINDER LOW HI B C ...

Page 12: ...setting conditions must be checked prior to initial starting The undermentioned items are especially important checking points when the installation is finished 1 Grounding wire Green or Green and Yellow is provided in the power cord The green wire must be grounded 2 Connect to a single outlet 15A circuit 3 To avoid vibration or noise make sure the air conditioner is installed securely 4 Avoid pla...

Page 13: ... C H J 2 3 4 2 1 G A RIGHT SIDE HORIZONTAL LINE B 1 WINDOW WIDTH A HEIGHT B 2 GASKET 3 WALL 4 DETAILS 5 1 x 30 ROUND HEAD WOOD SCREWS A B C D E F G H J K 495mm 366mm 250mm 30mm 0 25mm OVER 420mm 12mm 32mm 5 10mm 0 5mm 191 2 147 16 10 11 16 0 1 OVER 1617 32 1 2 11 4 3 16 3 8 0 3 16 1 2 3 4 8 13 10 7 6 5 9 12 11 B INSTALLATION KITS CONTENTS 22 to 36 Stool Interior wall 181 2 min Without frame curtai...

Page 14: ...per guide onto the top of the cabinet with 3 type A screws 6 Insert the frame guides into the bottom of the cabinet 7 Insert the Frame Curtain into the upper guide and frame guides 8 Fasten the curtains to the unit with 4 Type A screws CABINET INSTALLATION 1 Open the window Mark a line on center of the window stool or desired air conditioner location Carefully place the cabinet on the window stool...

Page 15: ... 5 Attach the sill support to the cabinet track hole in relation to the selected position using 2 Type A screws in each support See Figure 22 6 The cabinet should be installed with a very slight tilt about 1 2 downward toward the outside See Figure 23 Adjust the bolt and the nut of sill support for balancing the cabinet 7 Attach the cabinet to the window stool by driving the screws Type B Length s...

Page 16: ...and the lower window sash See Figure 26 12 Attach the window locking bracket with a type C screw See Figure 27 13 Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the front of the cabinet Push the grille in until it snaps into place See Figure 28 14 Lift the inlet grille and secure it with a type A screw through the front grille See Figure 29 15 Window in...

Page 17: ...te the inlet grille 180 degrees and insert the hooks into the lower holes of front grille Then insert the filter See Figure 31 32 2 Attach the front grille to the cabinet by inserting the tabs on the grille into the tabs on the front of the cabinet Push the grille in until it snaps into place See Figue 33 3 Lift the inlet grille and secure it with a type A screw through the front grille See Figure...

Page 18: ... MOTOR COMPRESSOR OIL LIQUID REFRIGERANT CAPILLARY TUBE OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH SUCTION LINE COOL LOW PRESSURE VAPOR COOLED AIR COMPLETE LIQUID BOIL OFF POINT LIQUID PRESSURE DROP ROOM AIR HEAT LOAD VAPOR INLET HOT DISCHARGED AIR LIQUID OUTLET HIGH PRESSURE VAPOR LIQUID REFRIGERANT LOW PRESSURE VAPOR ROOM AIR CONITIONER EVAPORATOR COILS CONDENSER COILS CYCLE OF REFRIGERATI...

Page 19: ...Check outdoor coil heat exchanger the fan operation Check gas leakage Repair gas leak Replacement of unit if the unit is beyond repair Satisfactory operation with temperature difference of inlet outlet air 44 50 F 7 10 C Check heat load increase Clean condenser Not on separate circuit Check inside gas pressure Adjusting of refrigerant charged Malfunction of compressor Replacement of compressor Che...

Page 20: ...tor resistance Irregular motor insulation Replacement of fan motor Regular but fails to start Replacement of compressor locking of rotor metal Improper thermistor setting Loose terminal connection Improper wiring Irregular motor resistance Irregular motor insulation Replacement of compressor Motor damaged Drop of power voltage Check capacitor Replacement Only compressor fails to start Defect of co...

Page 21: ...D DC 5V Is the voltage No 40 of Micom DC 5V Exchange Main PCB Ass y Is the connection between Main and Display all right Is the reset circuit all right The No 18 of Micom is 5V Check the Fuse Check the wiring diagram Check the Main PCB pattern Exchange the Trans Exchange D02D D05D Exchange IC01D Exchange IC02D Exchange IC01A C02A Connect connector exactly Check the PCB pattern NO NO NO NO NO NO NO...

Page 22: ...ltage N0 7 of IC01M DC 5V Check the RY COMP Check the wiring Diagram NO NO NO YES YES YES YES Is the wire connection of RY COMP all right Check the RY COMP Connect LEAD Wire to RY COMP again NO YES NO Exchange IC01M Exchange IC01M Is the voltage NO 1 or 2 or 4 of IC01M DC 5V Is the voltage NO 13 or 15 or 16 of IC01M 0V Check the RY Hi or RY Mid or RY Lo Check the wiring diagram NO NO YES YES Possi...

Page 23: ...ector to CN DISP exactly Does the Q01G Q02G Q03G Q04G operate normally on main PCB Ass y Check the PCB pattern Is the voltage of Battery about over 2 3V Exchange Receiver Ass y Is the connection of CN DISP all right Is the voltage No 17 of CN DISP on Main PCB Ass y DC 5V Exchange the battery Check the PCB pattern Connect connector to CN DISP exactly NO NO NO YES YES YES Possible Trouble 5 Remote c...

Page 24: ...If it hits the base shim up the bottom of the fan motor with mounting screw s Check fan motor bearings if motor shaft will not rotate replace the motor Check voltage If not within limits call an electrician Test capacitor Check bearings Does the fan blade rotate freely If not replace fan motor Pay attention to any change from high speed to low speed If the speed does not change replace the motor I...

Page 25: ...ure is high remove the overload cool and retest If not running determine the cause Replace if required Remove the cabinet inspect the interior surface of the condenser if restricted clean carefully with a vacuum cleaner do not damage fins or brush Clean the interior base before reassembling If condenser fins are closed over a large area on the coil surface head pressures will increase causing the ...

Page 26: ...OVERLOAD PROTECTOR 1 1 1 1 1 1 1 1 1 1 2 3 4 5 6 7 8 9 LOCATION NO DESCRIPTION Q TY PER SET WH BL POWER INPUT BK BR Ribbed Plain GN YL GN GN YL GN THERMISTOR BK BK BL RD BL RD CN TH1 YL YL OR BR OR BR OR BR SYNC MOTOR RY LO RY HI CN WORK CN SYNC CN DISP DISPLAY P W B ASM RY SYNC 250V T2A 115V T2A TRANS FORMER ZNR RY COMP MAIN P W B ASM BK BK BR BR RD BL BL OLP RD MOTOR CAPACITOR F R S COMP C C H 3...

Page 27: ... 27 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 2 ELECTRONIC CONTROL DEVICE ...

Page 28: ...28 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 5 3 COMPONENTS LOCATION OF MAIN P C B ASM 5 4 COMPONENTS LOCATION OF DISPLAY P C B ASM ...

Page 29: ...nd service purposes LGE Internal Use Only 152302 135303 135312 354210 349480 346811 352390 130910 731273 149980 359012 W0CZZ 135510 130410 552102 352115 35211A 352113 349001 352111 559010 554030 267110 268712 237200 238310 147582 249950 263230 264110 268714 147581 349600 567502 554160 550140 ...

Page 30: ...P NO 3828A20140T February 2008 ...

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