Table of Contents
Advertisement
Advertisement
Table of Contents
Troubleshooting
Related Manuals for LG LW8000PR
Summary of Contents for LG LW8000PR
-
Page 1: Room Air Conditioner
WEBSITE http://biz.LGservice.com E-MAIL http://www.LGEservice.com/techsup.html Room Air Conditioner SERVICE MANUAL CAUTION - BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - ONLY FOR AUTHORIZED SERVICE. MODEL: LW8000PR LW8000ER LW8000ERY3... -
Page 2: Table Of Contents
CONTENTS 1. PREFACE 3. INSTALLATION 1.1 SAFETY PRECAUTIONS........2 3.1 SELECT THE BEST LOCATION....14 1.2 INSULATION RESISTANCE TEST ....2 3.2 CHECK OF INSTALLATION......14 1.3 SPECIFICATIONS...........3 3.3 HOW TO DRAIN..........14 1.4 FEATURES............4 3.4 HOW TO INSTALL ........15 1.5 CONTROL LOCATIONS .........4 3.4.1 WHEN USING GASKET.......15 3.4.2 WHEN USING INSTALLATION KITS...15 2. -
Page 3: Specifications
1.3 SPECIFICATIONS 1.3.1 FOR LW8000PR MODELS LW8000PR / LW8000ER / LW8000ERY3 ITEMS 1ø, 115, 60Hz POWER SUPPLY COOLING CAPACITY (Btu/h) 8,200 INPUT RUNNING CURRENT (BTU/W . h) E.E.R 10.9 OPERATING INDOOR (°C) 26.7(DB)* 19.4(WB)** CONDITION OUTDOOR (°C) 35(DB)* 23.9(WB)** REFRIGERANT (R-22) CHARGE 440g (19.0 oz) -
Page 4: Features
• Powerful and whispering cooling. • Compact size • Slide-in and slide-out chassis for the simple • Reliable and efficient rotary compressor is equipped. installation and service. • Low air-intake, top cooled-air discharge. 1.5 CONTROL LOCATIONS LW8000PR DISPLAY REMOTE CONTROL PURIFIER Power Purifier COOL... - Page 5 FAN SPEED SELECTOR Every time you push this button, it is set as follows..) COOL DRY HEAT DEFROST COOL DRY HEAT DEFROST COOL DRY HEAT DEFROST ENERGY ENERGY ENERGY SAVER SAVER SAVER INDOOR DESIRED INDOOR DESIRED INDOOR DESIRED PURYFIER PURYFIER PURYFIER AUTO...
- Page 6 DISPLAY REMOTE CONTROL LW8000ER LW8000ERY3 Power Temp °F ˚F Cool F1 LOW F1 LOW F2 MED Energy F2 MED F3 HIGH Saver F3 HIGH Fan Speed COOL TEMP Timer Mode Timer TIMER ENERGY SAVER MODE TIMER POWER SPEED TIMER MODE TEMP POWER SPEED...
-
Page 7: Disassembly Instructions
2. DISASSEMBLY INSTRUCTIONS — Before the following disassembly, POWER SWITCH set to OFF and disconnect the power cord. 2.1 MECHANICAL PARTS 2.1.1 FRONT GRILLE 1. Open the lnlet grille downward and remove the air filter. 2. Remove the screw which fastens the front W ER grille.(See Figure 1) TI ME... -
Page 8: Air Handling Parts
2.2 AIR HANDLING PARTS 2.2.1 AIR GUIDE AND TURBO FAN 1. Remove the front grille. (Refer to section 2.1.1) 2. Remove the cabinet. (Refer to section 2.1.2) 3. Remove the control box. (Refer to section 2.1.3) 4. Remove the 4 screws which fasten the brace. 5. -
Page 9: Shroud
2.2.3 SHROUD 1. Remove the fan. (Refer to section 2.2.2) 2. Remove the shroud. (See Figure 8) 3. Re-install the components by referring to the removal procedure, above. Figure 8 2.3 ELECTRICAL PARTS 2.3.1 OVERLOAD PROTECTOR 1. Remove the cabinet. (Refer to section 2.1.2) 2. -
Page 10: Capacitor
2.3.3 CAPACITOR 1. Remove the control box. (Refer to section 2.1.3) 2. Open the top cover from the control box. (See Figure 11) 3. Pull out the capacitor from the control box. 4. Disconnect all the leads of capacitor terminals. 5. -
Page 11: Motor
2.3.5 MOTOR 1. Remove the cabinet. (Refer to section 2.1.2) 2. Remove the turbo fan. (Refer to section 2.2.1) 3. Remove the fan. (Refer to section 2.2.2) 4. Remove the 4 screws which fasten the motor from the air guide. (See Figure 13) 5. -
Page 12: Capillary Tube
2.4.3 CAPILLARY TUBE 3. Remove the capillary tube. 1. Remove the cabinet. (Refer to section 2.1.2) 4. Re-install the components by referring to notes. 2. After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary tube.(See caution above) NOTES —... - Page 13 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 16B-Charging Figure 16A-Pulling Vacuum —13—...
-
Page 14: Installation
3. INSTALLATION 3.1 SELECT THE BEST LOCATION 1.To prevent vibration and noise, make sure the unit is installed securely and firmly. 2.Install the unit where the sunlight does not shine FENCE directly on the unit. AWNING 3.The outside of the cabinet must extend outward for COOLED AIR at least 12"... -
Page 15: How To Install
3.4 HOW TO INSTALL 3.4.1 WHEN USING GASKET COOL HEAT DEFROST COOL HEAT DEFROST ENERGY SAVER ENERGY INDOOR DESIRED SAVER PURYFIER INDOOR DESIRED PURYFIER RESTART AUTO AUTO RESTART RIGHT SIDE HORIZONTAL LINE 1. WINDOW (WIDTH-A, HEIGHT-B) 4. DETAILS 5.1 x 30 ROUND HEAD WOOD SCREWS 2. -
Page 16: Suggested Tool Requirements
SUGGESTED TOOL REQUIREMENTS SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL PREPARATION OF CHASSIS 1. Remove the screws which fasten the cabinet at Shipping Screws both sides and at the back. 2. Slide the unit out from the cabinet by gripping the base pan handle and pulling forward while bracing the cabinet. - Page 17 3. Loosely assemble the sill support using the parts INDOOR OUTDOOR Figure Sill Support Bolt Figure 22 4. Select the position that will place the sill support near the outer most point on sill (See Figure Frame Guide Screw(Type A) NOTE: Be careful when you install the cabinet (Frame Guides are broken easily).
-
Page 18: Outside Dimensions
10. Slide the unit into the cabinet.(See Fig. 26) CAUTION: For security purpose, reinstall screws (Type A) at the cabinet's sides. Power cord Screw(Type A) Screw(Type A) Figure 26 11. Cut the Foam-Strip to the proper length and insert between the upper and lower window sash. Foam-Strip (See Fig. -
Page 19: Piping System
4.2 PIPING SYSTEM CONDENSER COIL CAPILLARY TUBE MOTOR COMPRESSOR TURBO FAN EVAPORATOR COIL Figure 32 is a brief description of the important components and their function in what is called the refrigeration system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. ROOM AIR CONITIONER CYCLE OF REFRIGERATION EVAPORATOR COILS... -
Page 20: Troubleshooting Guide
4.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but poor cooling. - Page 21 Fails to Start Check of power source. Check circuit breaker and fuse. Check of control switch Gas leakage of feeler bulb setting. of thermostat Check of control switch. Compressor only fails to Fan only fails to start. start. Improper wiring. Drop of power voltage.
- Page 22 ELECTRICAL PARTS TROUBLESHOOTING GUIDE: LW8000PR Possible Trouble 1 The unit does not operate. • Check the Fuse. • Check the Fuse. Is the Trans input power • Check the wiring diagram. • Check the wiring diagram. AC 115V? • Check the Main Is the Trans output power Is shorted the Trans.
- Page 23 Possible Trouble 2 The compressor does not operate. Is setting • Select the setting Temp. to lower Number. Temp. set lower than Room Temp.-0.5°C? Is the voltage No.10 Is the voltage N0.9 of Is the Unit for 3 minutes of IC01M 0V? IC01M DC 12V? delay? •...
- Page 24 Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 2 or 4 • Exchange IC01M. of IC01M DC 12V? Is the voltage NO.16 or 15 or 13 • Exchange IC01M. of IC01M 0V? • Check the RY-Hi or RY-Med or RY-Lo.
- Page 25 Possible Trouble 6 Remote controller does not operate. Is the voltage of Battery • Exchange the battery. about over 2.3V? Is the voltage No.10 • Check the PCB pattern. of CN-AC/DC on DC PCB • Check the PCB pattern. Ass'y DC 5V? •...
- Page 26 ELECTRICAL PARTS TROUBLESHOOTING GUIDE: LW8000ER Possible Trouble 1 The unit does not operate. • Check the Fuse. • Check the Fuse. Is the Trans input power • Check the wiring diagram. • Check the wiring diagram. AC 115V? • Check the AC Is the Trans output power Is shorted the Trans.
- Page 27 Possible Trouble 2 The compressor does not operate. Is desired • Select the desired Temp. to lower Number. Temp. set lower than Room Temp.-0.5°C? Is the voltage No.10 Is the voltage N0.9 of Is the Unit for 3 minutes of IC01M 0V? IC01M DC 12V? delay? •...
- Page 28 Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 2 or 4 • Exchange IC01M. of IC01M DC 5V? Is the voltage NO.16 or 15 or 13 • Exchange IC01M. of IC01M 0V? • Check the RY-Hi or RY-Med or RY-Lo.
- Page 29 Possible Trouble 6 It displays abnormally on DC PCB Ass’y. • Exchange IC01G, Are the IC01G and IC02G IC02G. all right? • Connect connector Is the connection of to CN-AC/DC exactly. CN-AC/DC all right? Does the IC03G • Exchange IC03G. operate normally on AC PCB Ass'y? •...
- Page 30 COMPLAINT CAUSE REMEDY Fan motor will not run. No power Check voltage at outlet. Correct if none. Power supply cord Check voltage to rotary switch. If none, check power supply cord. Replace cord if circuit is open. Rotary switch Check switch continuity. Refer to wiring diagram for terminal identification.
- Page 31 COMPLAINT CAUSE REMEDY Compressor will not run, Thermostat Check the position of knob If not at the coldest but fan motor runs. setting, advance the knob to this setting and restart unit. Check continuity of the thermostat. Replace thermostat if circuit is open. Capacitor (Discharge Check the capacitor.
-
Page 32: Schematic Diagram
5. SCHEMATIC DIAGRAM 5.1 CIRCUIT DIAGRAM MODEL : LW8000PR / LW8000ER / LW8000ERY3 CN-AC/DC CN-AC/DC CN-MOTOR GN/YL MOTOR DC PCB ASSEMBLY CAPACITOR CN-TH1 POWER TRANS THERMISTOR CN-PWR SWITCH DC12V CN-12V Ribbed FUSE 250V/T2A (115V/T2A) H.V. Plain CN-HVB ASSEMBLY GN/YL RY-COMP COMP. -
Page 33: Electronic Control Device
5.2 ELECTRONIC CONTROL DEVICE MODEL: LW8000PR —33—... - Page 34 MODEL: LW8000ER / LW8000ERY3 —34—...
-
Page 35: Components Location(For Main P.c.b Asm)
5.3 COMPONENTS LOCATION(FOR AC P.C.B ASM) MODEL: LW8000PR / LW8000ER / LW8000ERY3 R01T Q01T CN-MOTOR CN-HVB CN-TELE CN-TH2 Q03T C03T CN-PWR Q04T QIC02DT CN-4WAY ZNR01J C01J R01J C02D C04D C05D E03J E02J E01J C01D E04J E05J POWER TRANS RY-COMP FUSE... - Page 36 MODEL: LW8000ER MODEL: LW8000ERY3 —36—...
-
Page 37: Exploded View
6. EXPLODED VIEW 130910 554030 149980 148000 W48602 346811 359012 559011 352390 W48602 354210 267110 152312 147582 147581 349001 135312 567502 349480 554160 152302 130410 550140 135313 249950 352115 352111 268714 W0CZZ 135500 268712 S IR S AV 238310 A IR FI E S TA 263230... -
Page 38: Replacement Parts List
7. REPLACEMENT PARTS LIST R: Service Parts N: Non Service Parts PART NO. LOCATION REMARK DESCRIPTION LW8000PR LW8000ER LW8000ERY3 130410 BASE PAN WELD ASS'Y 3041A20021N 130910 CABINET ASS'Y 3091AR2317H 135312 FRONT GRILL ASS'Y 3530A20036A 3531A20097A 135313 INLET GRILLE 3530A20038A 135500... - Page 39 October, 2006 Printed in Korea P/No : 3828A20140H...