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Manual LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO

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  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 1

    LG Room Air Conditioner SERVICE MANUAL LG MODELS: LAN181CNW(ASNC183VML3) LAU181CNW(ASUC183VML3) LA180CPI (ASNC183VML3) LA180CPO (ASUC183VML3) CAUTION website http://www.lgservice.com • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL. ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 2

    2 Room Air Conditioner Details of 2006 LG Model Name .................................................................................................... 3 Safety Precautions ......................................................................................................................... 4 Functions ......................................... ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 3

    Ser vice Manual 3 Details of 2006 LG Model Name 12 Code T ype Code of Model Meaning 1 Producing Center/ A~Z L: ChangW on R22, A: ChangWon R410A, C: ChangW on R407C Refrigerant 2 T ype of Air conditioner A~Z S: Split T ype Air conditioner 3 Cooling/Heating A~Z C: C/O , H: H/P , X: C/O + E/H, Z: H/P + E/H 4,5 Capacity(Btu/h) 1~9 Cooling/Heating Capac ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 4

    4 Room Air Conditioner Saf ety Precautions Safety Precautions T o pre v ent injury to the user or other people and proper ty damage, the f ollo wing instructions must be f ollow ed. ■ Incorrect operation due to ignoring instruction will cause har m or damage . The seriousness is classified by the f ollo wing indications. ■ Meanings of symbols u ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 5

    Ser vice Manual 5 Saf ety Precautions ■ Operation Be cautious when unpacking and installing the product. • Shape edges could cause injur y . Be especially careful of the shar p edges. For installation, alwa ys contact the dealer or an A uthorized Ser- vice Center . • There is risk of fire, electric shock, e xplosion, or injur y . Do not insta ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 6

    6 Room Air Conditioner Saf ety Precautions Do not place a heater or other appliances near the power cable. • There is risk of fire, f ailure of the product, and/or electric shock. Do not let the air conditioner run for a long time when the humidi- ty is very high and a door or a window is left open. • Moisture ma y condense and wet or damage fu ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 7

    Ser vice Manual 7 Saf ety Precautions V entilate the product fr om time to time when operating it togeth- er with a stove, etc. • There is risk of fire or electr ical shock. Unplug the appliance before performing c leaning or mainte- nance. • There is risk of electr ic shock. When the product is not be used for a long time disconnect the power ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 8

    8 Room Air Conditioner Saf ety Precautions ■ Operation Use two or more people to lift and transport the air conditioner • A void personal injury . Do not install the product where it will be exposed to sea wind (salt spray) directl y . • It ma y cause corrosion in the product. Corrosion, par ticular ly on the condenser and e v aporator fins, ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 9

    Ser vice Manual 9 Saf ety Precautions Do not drink the water drained from the unit. • It is not sanitar y and could cause serious health issues. Use a firm stool or ladder when cleaning or maintaining the air conditioner . • Be careful and av oid personal injur y . Replace all the batteries in the remote. • There is risk of fire or explosion. ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 10

    10 Room Air Conditioner Functions • Room temperature sensor . (THERMIST OR) • Maintains the room temperature in accordance with the Setting T emp . • Indoor f an is delay ed for 5 sec at the star ting. • Restar ting is inhibited for appro x. 3 minutes. • High, Med, Low , CHA OS • Inter mittent operation of f an at low speed. • The f a ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 11

    Ser vice Manual 11 Functions Healthy Dehumidification Operation Mode. ( ) Remote Control Operation ON/OFF Reset Operation Mode Selection Temperature Setting Timer Selection Timer Setting JET COOL Timer Cancel Sleep Operation Airflow Direction Control (Cooling model only) (Heating model only) TEMPERATURE LOW HIGH Cooling Operation Mode.( ) Heating O ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 12

    12 Room Air Conditioner Product Ref erences NO TE: Please refer to Label Quality on the product since this specification ma y be changed for impro ving perf or mance Items Unit LA*181CNW(AS-C183VML3)/LA180CP* (AS-C183VML3) P ower Supply ø , V , Hz 1, 208/230, 60 Cooling Capacity BTU/h 17 800/18 000 Input W 2,000/2,000 Running Current A 9.8/8.9 COM ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 13

    Ser vice Manual 13 Dimensions 522 928 147 Pipe Hole Fix Hole MODEL DIM Unit W mm(inch) 928(36.5) H mm(inch) 522(20.6) D mm(inch) 147(5.8) Indoor Unit Dimensions Indoor Unit ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 14

    14 Room Air Conditioner Dimensions W L6 L5 L7 L8 D L1 L2 L9 L10 L3 L4 H Gas side 3-way valve Liquid side 2-way valve MODEL OUTDOOR UNIT DIM W mm(inch) 870(34.3) H mm(inch) 655(25.8) D mm(inch) 320(12.6) L1 mm(inch) 370(14.6) L2 mm(inch) 25(1.0) L3 mm(inch) 630(24.8) L4 mm(inch) 25(1.0) L5 mm(inch) 546(21.5) L6 mm(inch) 162(6.4) L7 mm(inch) 162(6.4) ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 15

    Ser vice Manual 15 Refrigeration Cycle Diagram F or installation ov er rated, *a proper quantity of refr igerant should be added f or each meter . Ex) 18K: When installed at a distance of 30m, 450g of refrigerant should be added. (30-7.5) x 20g = 450g INDOOR UNIT HEA T EXCHANGER (EV APORA T OR) HEA T EXCHANGER (CONDENSER) COMPRESSOR GAS SIDE CAPILL ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 16

    16 Room Air Conditioner Wiring Diagram 18K (Cooling Only Models) Wiring Diagram Indoor Unit Outdoor Unit ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 17

    Ser vice Manual 17 Operation Details • DISPLA Y 1) C/O Model Operation Indicator • ON while in appliance operation, OFF while in appliance pause . • Flashing while in disconnection or shor t in Ther mistor . (3 sec off / 0.5 sec on) Sleep Timer Indicator • ON while in sleep timer mode, OFF when sleep timer cancel or appliance oper ation pau ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 18

    18 Room Air Conditioner Operation Details • While in compressor off , the indoor f an repeats low airflo w speed and pause. • While the intak e air temp is between compressor on temp. and compressor off temp ., 10-min dehumidifica- tion operation and 4-min compressor off repeat. Compressor ON T emp . ➲ Setting T emp+0.5 ° C Compressor OFF T ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 19

    Ser vice Manual 19 Operation Details ■ Fuzzy Operation (C/O Model) • According to the temperature set b y Fuzzy rule, when the intake air temp is 0.5 ° C or more belo w the setting temp , the compressor is tur ned off . When 0.5 ° C or more abov e the setting temp, the compressor is turned on. Compressor ON T emp ➲ Setting T emp + 0.5 ° C ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 20

    20 Room Air Conditioner Operation Details 2) Fuzzy Operation for Dehumidification • According to the setting temperature selected by Fuzzy rule, when the intak e air temp is 0.5 ° C or more below the setting temp , the compressor is turned off. When 0.5 ° C or more abov e the setting temp, the compressor is tur ned on. Compressor ON T emp ➲ S ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 21

    Ser vice Manual 21 Operation Details ■ Off-Timer Operation • When the set time is reached after the time is input by the remote control, the appliance stops oper ating. • The timer LED is on when the off-timer is input. It is off when the time set by the timer is reached. • If the appliance is on pause at the time set by the timer , the pau ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 22

    22 Room Air Conditioner Operation Details ■ Jet Cool Mode Operation (H/P Model) • While in heating mode or Fuzzy operation, the Jet Cool k ey cannot be input. When it is input while in the other mode operation (cooling, dehumidification, v entilation), the Jet Cool mode is operated. • In the Jet Cool mode, the indoor f an is operated at super ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 23

    Ser vice Manual 23 Displa y Function 3sec 3sec 3sec (once) Error Code 1 Error Displa y LED (Indoor body operation LED) Error contents • Indoor room temperature thermistor open/shor t • Indoor pipe temperature thermistor open/shor t. • Indoor Thermistor assembly chec k SVC check point 1. Heating Model 2. Cooling Model • Cooling, Soft Dr y , ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 24

    24 Room Air Conditioner Intr oduction This symbol alerts you to the risk of electric shoc k. This symbol alerts you to hazar ds that may cause harm to the air conditioner . This symbol indicates special notes. NOTICE Symbols used in this Manual Features Signal Receptor Front Panel Air Inlet Air Discharge Power Cord Air Filter Air Intake Vents Air O ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 25

    Ser vice Manual 25 Installation Installation Type "A" screw and plastic anchor Type "B" screw Remote control holder Installation plate Figure Figure Name Screw driver Electric drill Measuring tape, Knife Hole core drill Spanner Torque wrench Ohmmeter Hexagonal wrench Ammeter Gas-leak detector Thermometer, Horizontal meter Flarin ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 26

    26 Room Air Conditioner Installation Installation Map Installation parts you should purchase. NOTICE (Left and right are identical) More than 12"(30cm) More than 28"(70cm) More than 24"(60cm) More than 12"(30cm) Sleeve Bushing-Sleeve Putty(Gum Type Sealer) Bend the pipe as closely on the wall as possible, but be careful that it ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 27

    Ser vice Manual 27 Installation 1. Check the quality label on the indoor and outdoor unit. 2. Make certain that the refr igerant is R-410A. THIS PRODUCT CONT AINS R-410A REFRIGERANT 1) Diff erent compressor oil - R-410A(P olyol ester) / R-22(Mineral). - Do not mix the e xisting mineral oil. - Do not apply used pipe, tools and gauges co vered with t ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 28

    28 Room Air Conditioner Installation Read completely , then follo w step by step . 1) Select the best location 1. Indoor unit ■ Do not hav e any heat or steam near the unit. ■ Select a place where there are no obstacles in front of the unit. ■ Make sure that condensation dr ainage can be con- veniently routed a wa y . ■ Do not install near ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 29

    Ser vice Manual 29 Installation 1. Open panel front ■ First,Pull the grille bottom, then remov e screws(2 pieces), and close grille bottom again. ■ The moment of lifting the both low er par ts of panel front, you can hear sound this panel came out, In this time panel front is separated ■ After pull down this panel a bit, and separate con- nec ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 30

    30 Room Air Conditioner Installation 4) How to fix installation plate The wall y ou select should be strong and solid enough to pre vent vibr ation Mount the installation plate on the wall with type "A" screws . If mounting the unit on a concrete wall, use anchor bolts . ■ Mount the installation plate horizontally by aligning the center ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 31

    Ser vice Manual 31 Installation 1) Flaring work Main cause f or refrigerant leakage is due to defect in the flaring work. Carr y out correct flar ing work using the f ollowing procedure. 1. Cut the pipes and the cable. • Use the piping kit accessor y or pipes purchased locally . • Measure the distance between the indoor and the outdoor unit. ? ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 32

    32 Room Air Conditioner Installation 2. T ape the tubing, drain hose, and the connecting cable. Be sure that the drain hose is located at the lowest side of the b undle. Locating at the upper side can cause drain pan to overflo w inside the unit. NO TE: If the drain hose is routed inside the room, insulate the hose with an insulation material* so t ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 33

    Ser vice Manual 33 Installation 3) Connection of the pipes-Outdoor 1 . Align the center of the pipings and sufficientl y tighten the flare nut b y hand. 2 . Finally , tighten the flare nut with torque wrenc h until the wrench c licks. • When tightening the flare nut with torque wrench, ensure the direction f or tightening follo ws the arrow on th ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 34

    34 Room Air Conditioner Installation 1 Indoor Unit Outdoor Unit 2 3 4 1 2 3 4 5 6 G To branch circuit Ground P ower supply a L1 * L2 Connecting cable(Low v oltage) b T er minal (4P) T er minal (6P) Outdoor unit Wiring Diagram T er minal bloc k Over 5mm (2") Cov er control Conduit panel Connecting cable P ower supply cord * L1 is neutral f or 1 ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 35

    Ser vice Manual 35 Installation G T er minal bloc k Cap (Remov e) Clamp cord Lock nut Conduit panel Loop Round terminal Screw with special washer Screw with special washer Round terminal T er minal plate Wire Wire Round terminal Insulation Strip 25mm(15/16") Strip 10mm(3/8") Solid wire Cap(Reuse) T aping (f or sealing) Low v oltage line ( ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 36

    36 Room Air Conditioner Installation After the confir mation of the abov e conditions, prepare the wiring as follo ws: 1) Never fail to ha ve an individual po wer cir cuit specifically for the air conditioner . As for the method of wiring, be guided by the cir cuit diagram posted on the inside of control co ver . 2) The screw whic h fasten the wiri ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 37

    Ser vice Manual 37 Installation 2) Form the piping 1. Form the piping by wrapping the connecting por- tion of the indoor unit with insulation material and secure it with two kinds of vin yl tapes. ■ If you w ant to connect an additional drain hose , the end of the drain outlet should be routed abov e the ground. Secure the drain hose appropriatel ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 38

    38 Room Air Conditioner Installation CAUTION CAUTION Air Conditioner Circuit Breaker Use a circuit breaker or time dela y fuse. Main pow er source If a pow er plug is not to be used, provide a circuit break er between pow er source and the unit as shown belo w . 3) Connect the cable to the indoor unit 1. Connect the wires to the terminals on the co ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 39

    Ser vice Manual 39 Installation T o av oid nitrogen enter ing the refrigerant system in a liquid state, the top of the cylinder m ust be higher than its bottom when you pressurize the system. Usually , the cylinder is used in a v er tical standing position. 1) Air purging Air and moisture remaining in the refrigerant system hav e undesirable eff ec ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 40

    40 Room Air Conditioner Installation 3. Evacuation • Connect the charge hose end described in the pre- ceding steps to the vacuum pump to e vacuate the tub- ing and indoor unit. Confirm the "Lo" knob of the manifold v alve is open. Then, run the vacuum pump . The operation time f or ev acuation varies with tubing length and capacity of ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 41

    Ser vice Manual 41 Installation 1. First, Check the side co ver assembly exactl y , Fix power cor d in the bottom groo ve of cover side left. 2. Assemble connecting lead wire with controller and first fix the upper part of panel front, then match the lower part of panel front 3. Drive three screws. P anel F ront Connector P anel Front Assemb ly ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 42

    42 Room Air Conditioner Installation 1. Chec k that all tubing and wiring have been properly connected. 2. Chec k that the gas and liquid side ser vice valv es are fully open. 1. Prepare remote contr ol 1. Remov e the batter y cover by pulling it according to the arrow direction. 2. Inser t new batteries making sure that the (+) and ( – ) of batt ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 43

    Ser vice Manual 43 Operation Operation Remote Contr ol Operations The controls will look like the f ollowing. 1. ST ART/ST OP BUTT ON Operation star ts when this button is pressed and stops when the button is pressed again. 2. OPERA TION MODE SELECTION BUTT ON Used to select the operation mode . 3. ROOM TEMPERA TURE SETTING BUTT ONS Used to select ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 44

    44 Room Air Conditioner Disassembly of the parts (Indoor unit) W arning : Disconnect the unit from power supply bef ore making any chec ks. Be sure the power s witch is set to “ OFF ” . 1. T o remove the Grille fr om the Chassis. - Push mark[ ] on the grille bottom then pull it down and remov e 3 secur ing screws . - Lift the both lower parts o ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 45

    Ser vice Manual 45 Disassembly of the parts (Indoor unit) 3. T o remove the Ev aporator . - Remo ve 1 scre ws securing the ev aporator . - Pull the e vapor ator out from the chassis carefully . 4. Before remo ving the T urbo Fan. - Remo ve the securing screws from the chassis . - Pull the pipe cov er , top cov er and the air guide. 5. T o remove th ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 46

    46 Room Air Conditioner 2-wa y , 3-wa y V alv e 2-way V alve (Liquid Side) 3-way V alve (Gas Side) Shaft position Shaft position Service por t Closed Closed Closed (with valv e cap) (with valv e cap) (with cap) Open Closed Open (counter-clockwise) (clockwise) (push-pin or with vacumm pump) Open Open Closed (with valv e cap) (with valv e cap) (with ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 47

    Ser vice Manual 47 2-wa y , 3-wa y V alv e 1. Air purging Required tools : h e xagonal wrench, adjustable wrench, torque wrenches, wrench to hold the joints, and gas leak detec- tor . The additional gas f or air purging has been charged in the outdoor unit. Howe ver , if the flare connections hav e not be done correctly and there gas leaks, a gas c ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 48

    48 Room Air Conditioner 2-wa y , 3-wa y V alv e 2. Pumping down • Procedure (1) Confirm that both the 2-way and 3-wa y valves are set to the open position. – Remo ve the v alve stem caps and confirm that the valv e stems are in the raised position. – Be sure to use a he xagonal wrench to operate the valv e stems. (2) Operate the unit for 10 t ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 49

    Ser vice Manual 49 2-wa y , 3-wa y V alv e 1) Re-air purging (Re-installation) • Procedure (1) Confirm that both the 2-way v alve and the 3- way v alve are set to the closed position. (2) Connect the charge set and a gas cylinder to the service por t of the 3-way v alve . – Leav e the valv e on the gas cylinder closed. (3) Air purging. – Open ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 50

    50 Room Air Conditioner 2-wa y , 3-wa y V alv e 2) Balance refrigerant of the 2-way , 3-way v alves (Gas leakage) • Procedure (1) Confirm that both the 2-way and 3-wa y valves are set to the back seat. (2) Connect the charge set to the 3-wa y valve ’ s port. – Leav e the valv e on the charge set closed. – Connect the charge hose with the pu ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 51

    Ser vice Manual 51 2-wa y , 3-wa y V alv e 3. Ev acuation (All amount of refrigerant leaked) • Procedure (1) Connect the vacuum pump to the char g e set ’ s center hose (2) Evacuation f or appro ximately one hour . – Confir m that the gauge needle has mov ed tow ard -76 cmHg (vacuum of 4 mmHg or less). (3 ) Close the valve (Lo side) on the c ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 52

    52 Room Air Conditioner 2-wa y , 3-wa y V alv e 4. Gas Charging (After Evacuation) • Procedure ( 1 ) Connect the charge hose to the char ging cylinder . – Connect the charge hose which you dis-con- nected from the vacuum pump to the v alve at the bottom of the cylinder . – If you are using a gas cylinder , also use a scale and re vers the cyl ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 53

    Ser vice Manual 53 2-wa y , 3-wa y V alv e Additional gas c harging (Gas leakage) • When refrigerant is insufficient b y leakage, recharge the unit with the refrigerant up to normal oper- ating suction pressure. • Use the gr aph or the equation below to get operating suction pressure according to indoor and out- door temperature . Suction press ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 54

    54 Room Air Conditioner Cycle T roubleshooting Guide 1. T rouble anal ysis 1. Check temper ature difference betw een intake and discharge air and oper ating current. T emp . Diff erence Operating Current T emp . diff erence :appro x. 0 ° F Current : less than 80% of rated current T emp . diff erence :appro x. 8 ° C(14 ° F) Current : less than 80 ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 55

    Ser vice Manual 55 Cycle T roubleshooting Guide 2. Pr oduct does not operate at all. (* Refer to Electr onic Control De vice drawing and Schematic diagram.) T urn off Main Po wer T urn on Main P ower Does "beeping" sound is made from the Indoor Unit? Primar ily , the operating condition of Micom is OK. Check the v oltage of po wer(About A ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 56

    56 Room Air Conditioner Cycle T roubleshooting Guide 3. The pr oduct is not operate with the remote controller . T urn on Main Po wer While the compressor has been stopped, the compressor does not operate owing to the dela ying function for 3 min utes after stopped. Caused by other parts except the remote controller Cause by the remote controller W ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 57

    Ser vice Manual 57 Cycle T roubleshooting Guide 4. Compressor/Outdoor F an are unable to drive. T urn on Main P ower Operate "Cooling Mode( )" b y setting the desired temperature of the remote controller is less than one of the indoor temperature b y 2 ° F at least. When in F an Mode, Compressor/Outdoor F an is stopped. Check the sensor ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 58

    58 Room Air Conditioner Cycle T roubleshooting Guide 5. When Indoor F an does not operate . Check connecting condition of the CN-MO T OR CON- NECT OR Does the v oltage of terminal of CN-DC/DC CONNECT OR in Indoor unit corresponds to the v alues in the tab le of page 63? Do the voltage of terminal of CN-DC/DC CONNECT OR in Outdoor unit corresponds t ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 59

    Ser vice Manual 59 Cycle T roubleshooting Guide • Confir m that the V er tical Louver is normally geared with the shaft of Step- ping Motor . • If the regular torque is detected when rotating the V er tical Louver with hands Nor mal • Check the connecting condition of CN-U/D , CN-L/R Connector • Check the soldering condition(on PWB) of CN-U ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 60

    60 Room Air Conditioner Cycle T roubleshooting Guide • The operation indicator of Indoor unit b links five times . • The red indicator of Outdoor unit blinks fiv e times. Check the connecting wires betw een Indoor and Outdoor unit for the connecting error and the contacting condition. Check the installation condition of outdoor unit. Check f or ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 61

    Ser vice Manual 61 Cycle T roubleshooting Guide 8. The phenomena in case of connecting error INDOOR UNIT Connector T ype Condition Open and connecting error Open Open Open Open Shor t between terminals ( and ) of ROOM-TH. Shor t between terminals ( and ) of PIPE-TH. Shor t between ter minals • The same as the phenomenon of Outdoor Unit. • The u ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 62

    62 Room Air Conditioner Cycle T roubleshooting Guide OUTDOOR UNIT Connector T ype Condition OPEN • PWB pattern is damaged when applying the power . Connecting re versely Connecting re versely OPEN OPEN OPEN OPEN Connecting error ( ) Connecting error ( ) Connecting error ( ) Connecting error ( ) Connecting error ( ) Connecting error ( ) • All fu ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 63

    Ser vice Manual 63 Cycle T roubleshooting Guide 9. V oltage of Connectors accor ding to Indoor Fan Speed 4 3 2 1 1 1 2 3 4 INDOOR FAN MOTOR INDOOR PWB ASSY Connecting wires between Indoor and Outdoor Indoor Connecting Terminal Outdoor Connecting Terminal Input Power TAB-N RY-COMP-A RY-COMP-B CN-DC/DC BL BK BR RD BL BK BR RD +- 12 32 42 12 32 42 12 ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 64

    64 Room Air Conditioner Electronic Control De vice • PWB ASSY SVC P AR T LIST 1 18K Cooling Model 6871A20387J 12K 20K 27K 12K OPEN OPEN NO MODEL P/No. OPTIONAL FUNCTION OR1H OR2H OR3H OR4H OR5H OR6H OJ1H, OJ2H, : SHOR T • T OP VIEW • BO TT OM VIEW Electr onic Control De vice MAIN PWB ASSY(Indoor Unit) ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 65

    Electronic Control De vice • T OP VIEW • BO TT OM VIEW MAIN PWB ASSY(Outdoor Unit) ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 66

    66 Room Air Conditioner Electronic Control De vice • T OP VIEW • BO TT OM VIEW DISPLA Y PWB ASSEMBL Y ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 67

    Ser vice Manual 67 Schematic Diagram OUTDOOR 48 46 47 44 42 43 40 38 39 41 36 35 34 33 37 45 15 1 2 2 1 23 18 16 17 19 20 21 22 28 24 25 26 27 29 30 31. 32 SLEEP TIMER ON/OFF DEFROST LED1 LED3 LED4 LED2 58 7 11 13 14 12 10 9 8 63 3 5 6 4 1 2 64 62 61 60 59 53 57 56 55 54 51 52 50 49 1 CN-HVB(BL) 3 2 HVB ASSY 1 3 2 12V R93 10K RXE250 POLY SW1 CN-MOT ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 68

    68 Room Air Conditioner Schematic Diagram Outdoor Unit ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 69

    Ser vice Manual 69 Exploded Vie w and Replacement P ar ts List 249951 26871 1-2 14758 1 135311- 2 146811 135500- 2 146811 352380-2 352380-1 131410 14758 1 135311- 1 567480 135500- 1 135311-3 147581 354210 352150 35211B 349490 330870 135500- 3 267110 152302 346810-1 359012-1 346810-2 359012-2 146811 135316 352116 352115 26871 1-1 135313 159830 Explo ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 70

    70 Room Air Conditioner Exploded View and Replacement P ar ts List P arts List(indoor) 131410 CHASSIS ASSEMBL Y 3141A20008J R 135311-1 GRILLE ASSEMBL Y ,DISCHARGE(INDOOR) 3531A20124K R 135311-2 GRILLE ASSEMBL Y ,DISCHARGE(INDOOR) 3531A20124J R 135311-3 GRILLE ASSEMBL Y ,DISCHARGE(INDOOR) 3531A20125G R 135316 GRILLE ASSEMBL Y ,FRONT(INDOOR) 3531A103 ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 71

    Ser vice Manual 71 Exploded View and Replacement P ar ts List 2. Outdoor unit(18K) 435512 437210 559010 546810 55211G 554031 437212 435511 447910 552202 561410 567502-1 552116 566000 430410 649950 263230-1 263230-2 668711 W0CZZ-2 W0CZZ-1 552203-2 552203-1 554160-1 554160-2 567502-2 550140 550140 263230 ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 72

    72 Room Air Conditioner Exploded View and Replacement P ar ts List P arts List(outdoor) LOCA TION DESCRIPTION PA R T N o . REMARKS No. 552203-1 V AL VE,SER VICE 2H02479B R 552203-2 V AL VE,SER VICE 5220A20006A R 554031 CONDENSER ASSY ,BENT 5403A20058B R 554160-1 COMPRESSOR SET 2520UGJK2AA R 554160-2 COMPRESSOR SET 2520UGAK2AA R 559010 F AN ASSY , P ...

  • LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - page 73

    P/No.: 3828A20065Y Printed in Korea ...

Manufacturer LG Electronics Category Air Conditioner

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All of them are important, but the most important information from the point of view of use of the device are in the user manual LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO, service manual, brief instructions and user manuals LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO.

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A complete manual for the device LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO by users. Manuals are usually written by a technical writer, but in a language understandable to all users of LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO.

A complete LG Electronics manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO, that we can find in the current document
3. Tips how to use the basic functions of the device LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO - which should help us in our first steps of using LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of LG Electronics LAN181CNW, LAU181CNW, LA180CPI, LA180CPO in a specific country, if it was not possible to solve the problem on our own.

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