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Room Air Conditioner
SVC MANUAL(Exploded View)
MODEL : LWM1836TAS, LWM1836QCG, LWN2131QAG, Y5USC24-6R,
WG2400R, LWN2432QAS, LWN2433TCS, WG1800R, M1804R,
Y5USC18-6R, LWM1836QAS, HBLG1800R, HBLG2400R,
M2403R, LWC243NSMM0, LWC243NSMM2, HBLG2350E
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
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Related Manuals for LG HB2350E
Summary of Contents for LG HB2350E
- Page 1 Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(Exploded View) MODEL : LWM1836TAS, LWM1836QCG, LWN2131QAG, Y5USC24-6R, WG2400R, LWN2432QAS, LWN2433TCS, WG1800R, M1804R, Y5USC18-6R, LWM1836QAS, HBLG1800R, HBLG2400R, M2403R, LWC243NSMM0, LWC243NSMM2, HBLG2350E CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.
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Page 2: Table Of Contents
5.2 ELECTRONIC CONTROL DEVICE ......................28 5.3 COMPONENTS LOCATION(FOR MAIN P.C.B ASM) .......................29 5.4 COMPONENTS LOCATION(FOR DISPLAY P.C.B ASM) .......................29 6. EXPLODED VIEW ..........................30 - 2 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 3: Preface
* DB:Dry Bulb ** WB:Wet Bulb NOTE : Specifications are subject to minor change without notice for further improvement. - 3 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 4: Features
In case the power comes on again after a power failure, the unit runs as previous setting operation.(Available in some models) - 4 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 5: Disassembly Instructions
(Refer to the circuit diagram found on page 24 in this manual and on the control box.) Figure 3 - 5 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 6: Air Handling Parts
6. Remove the fan. (See Fig. 7) 7. Re-install the components by referring to the removal procedure, above. Figure 7 (a) Figure 7 (b) - 6 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 7: Shroud
6. Disconnect all the leads of capacitor terminals. 7. Re-install the components by referring to the removal procedure, above. Figure 11 - 7 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 8: Power Cord
5. Remove the 2 screws which fasten the synchronous motor. (See Fig. 14) 6. Re-install the components by referring to the removal procedure, above. Figure 14 - 8 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 9: Refrigeration Cycle
Figure 16 4. Remove the capillary tube. 5. Re-install the components by referring to notes. - 9 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 10 Open valve C. Discharge the line at the manifold connection. 5) The system is now ready for final charging. - 10 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 11 Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 17A-Pulling Vacuum Figure 17B-Charging - 11 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 12: Installation
5. Insert the filter and attach the front grille to the cabinet. B. IF YOU WANT TO PULL OUT THE FILTER DOWNWARD; The grille is already designed for that way. - 12 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 13: Window Requirements
Support bracket(2) Type B (7) Type C (5) Type D (2) Type A (14) Carriage Bolt (2) Lock Nut (4) - 13 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 14: Suggested Tool Requirements
8. Fasten the curtains to the unit with 10 screws (Type A) at Top retainer bar both sides. Screw (Type A) Screw(Type A) Frame guide Figure 21 - 14 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 15: Cabinet Installation
(Type B) through the cabinet into window stool. 2. The cabinet should be installed with a very slight tilt downward toward the outside. Figure 26 - 15 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 16 (See Fig. 31) 12. Window installation of room air conditioner is now Figure 31 completed. Figure 32 - 16 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 17: Outside Dimensions
LIQUID PRESSURE LIQUID OUTLET DROP (LIQUID REFRIGERANT) HIGH PRESSURE VAPOR LIQUID PEFRIGERANT CAPILLARY TUBE LOW PRESSURE VAPOR Figure 33 - 17 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 18: Troubleshooting Guide
Satisfactory operation with temperature difference of Repair clogging in inlet & outlet air ; 44.6~50°F refrigeration circuit. - 18 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 19 Regular but fails to start Irregular motor insulation ( ) Replacement of compressor (locking of rotor, metal) Replacement of compressor (Motor damaged) - 19 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 20 • Check the P.W.B Is the voltage No.18 of Micom pattern. DC 5V? Exchange Main P.W.B Ass'y. - 20 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 21 NO.13 or 15 or 16 • Exchange IC01M. of IC01M 0V? • Check the RY-Hi or RY-Lo. • Check the wiring diagram. - 21 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 22 Ass'y DC 5V? • Connect connector to Is the connection of CN-DISP1 exactly. CN-DISP1 all right? • Exchange Receiver Ass'y. - 22 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 23 Q02G, Q03G Q04G operate normally • Exchange Q01G, on main P.W.B Ass'y? Q02G, Q03G, Q04G • Exchange the display P.W.B Ass'y. - 23 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 24 Pay attention to any change from high speed to low speed. If the speed does not change, replace the motor. - 24 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 25 Check overload, if externally mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool, and retest.) - 25 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
- Page 26 Auto air-swing fails. Wiring Check terminals. If loose, repair or replace. Synchronous motor. Check the synchronous motor for open circuit. - 26 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
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Page 27: Schematic Diagram
WIRING DIAGRAM DESCRIPTION POWER CORD FAN MOTOR CAPACITOR COMPRESSOR MAIN PWB ASSEMBLY DISPLAY PWB ASSEMBLY THERMISTOR ASSEMBLY CONNECTOR FUSE - 27 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 28: Electronic Control Device
5.2. ELECTOINC CONTROL DEVICE SEG-d TEST SEG-e SEG-f /Reset SEG-g SLIDE VAref KEY0 Room KEY1 Pipe out0 out1 Option1 out2 Option2 - 28 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 29: Components Location(For Main P.c.b Asm)
5.3. COMPONENTS LOCATION (FOR MAIN P.C.B ASM) 5.4. COMPONENTS LOCATION (FOR DISPLAY P.C.B ASM) - 29 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... -
Page 30: Exploded View
349001 554160 249950 135312 263230 152302 135303 268711A 237200 238310 552102 352113 146812 352111 147581A 268711B 147581B 264110 35211A - 30 - Copyright ©2007 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes... - Page 31 FEBRUARY, 2008 P/NO : 3828A20095H...