LG Electronics LWJ0561ACP/AAG manual

Room Air Conditioner SER VICE MANU AL MODEL: L WJ0561A CG L WJ0561 A CP /AAG CA UTION - BEFORE SER VICING THE UNIT , READ THE "SAFETY PRECA UTIONS" IN THIS MANU AL. - ONL Y FOR A UTHORIZED SER VICE PERSONNEL. WEBSITE http://biz.LGservice.com E-MAIL http://www .LGEservice.com/techsup.html[...]

—2— CONTENTS 1. PREF A CE .................................................................................................................................................. 3 1.1 FEA TURES ................................................................................................................................................... 3 1.2 SPE[...]

—3— 1. PREF A CE This ser vice man ual provides v arious ser vice inf or mation, including the mechanical and electrical par ts , etc. This room air conditioner was man ufactured and assemb led under a strict quality control system. The refrigerant is charged at the f actor y . Be sure to read the saf ety precautions pr ior to servicing the uni[...]

—4— 1.3 LOCA TIONS OF CONTROLS 1.4 SAFETY PRECA UTIONS 1. When ser vicing, set the RO T AR Y SWITCH to Off ( 0 ) and unplug the power cord. 2. Obser ve the original lead dress. If a shor t circuit is f ound, replace all par ts which hav e been ov erheated or damaged by the short cir- cuit. 3. After ser vicing, make an insulation resistance test[...]

— 5 — 2. DISASSEMBL Y INSTR UCTIONS 2.1 MECHANICAL P ARTS 2.1.1 FRONT GRILLE 1. Disconnect the unit from the power source . 2. Remov e the two knobs b y pulling them off. Using a screwdriv er , remov e the screw that secures the front grille to control board. (See Figure 1) 3. Push the front grille up from the bottom. Pull the top of the front [...]

— 6 — 2.2 AIR HANDLING P ARTS 2.2.1 AIR GUIDE UPPER 1. Disconnect the unit from the power source . 2. Remov e the front grille. (Ref er to Section 2.1.1) 3. Remov e the cabinet. (Ref er to Section 2.1.2) 4. Remov e the control board. (Ref er to Section 2.1.3) 5. Remov e 2 screws that secure the br ace to air guide upper and shroud. (See Figure [...]

— 7 — 2.2.3 MO T OR 1. Disconnect the unit from the pow er source. 2. Remov e the front grille. (Ref er to Section 2.1.1) 3. Remov e the cabinet. (Ref er to Section 2.1.2) 4. Remov e the control board. (Ref er to Section 2.1.3) 5. Remov e the air guide upper . (Ref er to Section 2.2.1) 6. Remov e the compressor , turbo f an, f an and shroud. (R[...]

— 8 — 2.3.3 CAP A CITOR 1. Remov e the cabinet. (Ref er to Section 2.1.2) 2. Remov e the control board. (Ref er to Section 2.1.3) 3. Discharge the capacitor by placing a 20 K Ω resistor across the capacitor ter minals. 4. Remov e the screw which f astens the capacitor clamp . 5. Remov e all the leads of capacitor ter minals. 6. Re-install the[...]

2.4.2 EV APORA T OR 1. Remov e the cabinet. (Ref er to section 2.1.2) 2. Discharge the refrigerant by using a refrigerant recov er y system. 3. Remov e the air guide upper . (Ref er to Section 2.2.1) 4. After discharging the refrigerant completely , unbraze the interconnecting tube at the e vaporator connections. 5. Remov e the e vaporator . 6. Re-[...]

— 10 — Equipment needed: V acuum pump , charging cylinder , manifold gauge , brazing equipment, pinch-off tool capab le of making a vapor proof seal, leak detector , tubing cutter , hand tools to remove components and service valv e. B A B A B A COMPOUND GAUGE SEE INSETS BELOW CAPILLARY TUBE EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR CONDENSER ([...]

— 11 — 3. INST ALLA TION This air conditioner is designed with a button- down chassis so that it can be installed simply in a window . 3-1. SELECT THE BEST LOCA TION 1. T o pre vent vibr ation and noise, mak e sure the unit is installed securely and firmly . 2. Install the unit where the sunlight does not shine directly on the unit. 3. The outs[...]

— 12 — 3.4 HO W T O INST ALL • WHEN USING GASKET 2 1 2 F E C 3 G A B RIGHT SIDE HORIZONTAL LINE D 1. WINDO W (A - WIDTH ,B-H EIGHT) 2. GASKET 3. W ALL AB C D E F G 487mm 324mm 30mm 0~25mm O VER 240mm 5~10mm -5~5mm (19 3 / 16" ) (12 3 / 4" )( 1 1 / 16" ) (0~1") (9 15 / 32" )( 3 / 16" ~ 3 / 8" )( - 3 / 16"[...]

— 13 — 4.2 PIPING SYSTEM F ollowing is a brief descr iption of the impor tant components and their function in what is called the refr igeration system. Ref erence should be made to Figure 26 to follo w the refrigerating cycle and the flow of the refrigerant in the cooling cycle. COOLED AIR HOT DISCHARGED AIR MOTOR COMPRESSOR ROOM AIR HEAT LOAD[...]

— 14 — 4.3 TR OUBLESHOO TING GUIDE In general, possib le trouble is classified in two kinds . The one is called Starting Failure which is caused from an electrical defect. The other is Ineff ective Air Conditioning caused from a def ect in the refrigeration circuit and improper application. Unit is running but cooling is ineff ective . Ineffect[...]

— 15 — Fails to Start Improper thermostat setting Loose terminal connection Improper wiring Check of po wer source. Drop of power v oltage. Capacitor check. Replacement. Check of control s witch setting. Compressor f ails only to star t. Def ect of compressor capacitor . Replacement of compressor (Motor damaged). Irregular motor insulation ( ?[...]

— 16 — ROOM AIR CONDITIONER V OL T A GE LIMITS NAME PLA TE RA TING MINIMUM MAXIMUM 220V~240V 198V 264V COMPLAINT CA USE REMED Y F an motor will not run. No power Check v oltage at outlet. Correct if none. P ow er supply cord Check v oltage to rotar y s witch. If none, check power supply cord. Replace cord if circuit is open. Rotar y switch Chec[...]

— 17 — COMPLAINT CA USE REMED Y F an motor noise. F an If crac ked, out of balance, or partially missing, replace it. Blower If crac ked, out of balance, or partially missing, replace it. Loose set screw Tighten it. W or n bear ings If knocking sounds contin ue when running or loose, replace the motor . If the motor hums or noise appears to be [...]

— 18 — COMPLAINT CA USE REMED Y Compressor cycles on F an motor If not r unning, deter mine the cause. Replace if ov erload required. Condenser air flow Remov e the cabinet, inspect the interior surface restriction of the condenser . If restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush. Clean the inter ior base bef[...]

5. SCHEMA TIC DIA GRAM — 19 — 5-1. CIRCUIT DIA GRAM • MODEL : L WJ0561A CG MOTOR C F H 7 8 6 4 2 1 5 3 H L M POWER INPUT ROTARY SWITCH THERMOSTAT BR BK RD BK RD OR(BR) YL BK(BR) (Plain) WH(BL) (Ribbed) GN(GN/YL) COMP. YL OR(BR) R S C CAPACITOR BK RD BL BR OLP 5 1 2 6 7 3 4 WIRING DIAGRAM DESCRIPTION & NAME P O W E RC O R DA S S Y FA N M O[...]

— 20 — • MODEL : L WJ0561A CP/AA G DESCRIPTION & NAME P O W E RC O R DA S S Y FA N M O T O R COMPRESSOR ROT ARY SWI T C H THERMOST A T CAP A CIT OR O VERLO AD PRO TECT OR Q'TY 1 1 1 1 1 1 1 REF . NO 1 2 3 4 5 6 7 5 1 2 6 7 3 4[...]

— 21 — 6. EXPLODED VIEW 152302 135313 352390 159900-2 145200 159900-1 130410 359012 W48602 135312 149410 354210 349480 352380 149980 559011 346811 554030 266003 264110 269310 W0CZZ 249950 135510 550140 554160 567502 352115 552111 552101 352113 35211A W48602 130910[...]

— 22 — 7. SER VICE P AR TS LIST 130410 BASE ASSEMBL Y , SINGLE 3041A10011G 3041A10011G 3041A10011G R 130910 CABINET ASSEMBL Y , SINGLE 3091A10020B 3091A10020B 3091A10020B R 135312 GRILLE ASSEMBL Y , FRONT(SINGLE) 3531AR1644C 3531AR1644L 3531AR1644Q R 135313 GRILLE ASSEMBL Y , INLET 3530AR1616A 3530AR1617A 3530AR1616A R 135510 CO VER 3550A20026A[...]

P/NO:3828A20118B April, 2002 Printed in Korea[...]