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LG LMU187HV Bedienungsanleitung

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Richtige Gebrauchsanleitung

Die Vorschriften verpflichten den Verkäufer zur Übertragung der Gebrauchsanleitung LG LMU187HV an den Erwerber, zusammen mit der Ware. Eine fehlende Anleitung oder falsche Informationen, die dem Verbraucher übertragen werden, bilden eine Grundlage für eine Reklamation aufgrund Unstimmigkeit des Geräts mit dem Vertrag. Rechtsmäßig lässt man das Anfügen einer Gebrauchsanleitung in anderer Form als Papierform zu, was letztens sehr oft genutzt wird, indem man eine grafische oder elektronische Anleitung von LG LMU187HV, sowie Anleitungsvideos für Nutzer beifügt. Die Bedingung ist, dass ihre Form leserlich und verständlich ist.

Was ist eine Gebrauchsanleitung?

Das Wort kommt vom lateinischen „instructio”, d.h. ordnen. Demnach kann man in der Anleitung LG LMU187HV die Beschreibung der Etappen der Vorgehensweisen finden. Das Ziel der Anleitung ist die Belehrung, Vereinfachung des Starts, der Nutzung des Geräts oder auch der Ausführung bestimmter Tätigkeiten. Die Anleitung ist eine Sammlung von Informationen über ein Gegenstand/eine Dienstleistung, ein Hinweis.

Leider widmen nicht viele Nutzer ihre Zeit der Gebrauchsanleitung LG LMU187HV. Eine gute Gebrauchsanleitung erlaubt nicht nur eine Reihe zusätzlicher Funktionen des gekauften Geräts kennenzulernen, sondern hilft dabei viele Fehler zu vermeiden.

Was sollte also eine ideale Gebrauchsanleitung beinhalten?

Die Gebrauchsanleitung LG LMU187HV sollte vor allem folgendes enthalten:
- Informationen über technische Daten des Geräts LG LMU187HV
- Den Namen des Produzenten und das Produktionsjahr des Geräts LG LMU187HV
- Grundsätze der Bedienung, Regulierung und Wartung des Geräts LG LMU187HV
- Sicherheitszeichen und Zertifikate, die die Übereinstimmung mit entsprechenden Normen bestätigen

Warum lesen wir keine Gebrauchsanleitungen?

Der Grund dafür ist die fehlende Zeit und die Sicherheit, was die bestimmten Funktionen der gekauften Geräte angeht. Leider ist das Anschließen und Starten von LG LMU187HV zu wenig. Eine Anleitung beinhaltet eine Reihe von Hinweisen bezüglich bestimmter Funktionen, Sicherheitsgrundsätze, Wartungsarten (sogar das, welche Mittel man benutzen sollte), eventueller Fehler von LG LMU187HV und Lösungsarten für Probleme, die während der Nutzung auftreten könnten. Immerhin kann man in der Gebrauchsanleitung die Kontaktnummer zum Service LG finden, wenn die vorgeschlagenen Lösungen nicht wirksam sind. Aktuell erfreuen sich Anleitungen in Form von interessanten Animationen oder Videoanleitungen an Popularität, die den Nutzer besser ansprechen als eine Broschüre. Diese Art von Anleitung gibt garantiert, dass der Nutzer sich das ganze Video anschaut, ohne die spezifizierten und komplizierten technischen Beschreibungen von LG LMU187HV zu überspringen, wie es bei der Papierform passiert.

Warum sollte man Gebrauchsanleitungen lesen?

In der Gebrauchsanleitung finden wir vor allem die Antwort über den Bau sowie die Möglichkeiten des Geräts LG LMU187HV, über die Nutzung bestimmter Accessoires und eine Reihe von Informationen, die erlauben, jegliche Funktionen und Bequemlichkeiten zu nutzen.

Nach dem gelungenen Kauf des Geräts, sollte man einige Zeit für das Kennenlernen jedes Teils der Anleitung von LG LMU187HV widmen. Aktuell sind sie genau vorbereitet oder übersetzt, damit sie nicht nur verständlich für die Nutzer sind, aber auch ihre grundliegende Hilfs-Informations-Funktion erfüllen.

Inhaltsverzeichnis der Gebrauchsanleitungen

  • Seite 1

    Multi Air Conditioner SVC MANUAL(General) MODEL : Multi-Inverter Type 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[...]

  • Seite 2

    - 1 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Air Conditioner Service Manual CONTENTS Part 1 General Information .........................................................................................................2 1. Safety Precautions .............................[...]

  • Seite 3

    - 2 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Safety Precautions ............................................................................................................3 2. Model Line Up ............................................................................[...]

  • Seite 4

    Part 1 General Information - 3 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. Safety Precautions 1.1 Cautions in Repair To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring i[...]

  • Seite 5

    Part 1 General Information - 4 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Do not turn on the breaker under condition that front panel and cabinet are removed. Be sure to earth the air conditioner with an earthing conductor connected to the earthing terminal. Conduct repai[...]

  • Seite 6

    Part 1 General Information - 5 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1.2 Inspections after Repair Check to see if the parts are mounted correctly and wires are connected. Improper installation and connections can cause an electric shock or an injury . Check the insta[...]

  • Seite 7

    2. Model Line Up Part 1 General Information - 6 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2.1 Indoor units 2.64 (9) 5.28 (18) 3.52 (12) ART COOL Category Type LIBERO Model names Capacity, kW(kBtu/h Class) Chassis Wall mounted Ceiling cassette SB SC SE S8 TR TQ AMNW09GDBL[...]

  • Seite 8

    Part 1 General Information 3. Nomenclature 3.1 Indoor Unit(Global) 3.2 Outdoor Unit(Global) AMN W G 09 E DL 0 Serial number A2U W 3 18 F A 0 Electrical rating Indicates that this is multi system indoor unit using R410A Model type H : Heat pump W : DC Inverter heat pump Ex) 7,000 Btu/h Class → '07', 18,000 Btu/h Class → '18' [...]

  • Seite 9

    - 8 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 1. List of Functions & Controls ..........................................................................................9 2. Air flow .....................................................[...]

  • Seite 10

    - 9 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 1. List of Functions & Controls 1.1 Description of Functions/Controls Auto swing (left & right) Optional Auto swing (up & down) Optional Chaos swing (up & down) Optional Airflow[...]

  • Seite 11

    Network Solution (LGAP) Optional PDI (Power Distribution Indicator) Optional PI 485 Optional Zone control Optional Low ambient operation Space Control Optional Auto Elevation Optional Defrost / Deicing High pressure switch Optional Low pressure switch Optional Phase protection Optional Restart delay Optional (3-minutes) Self diagnosis Soft start Op[...]

  • Seite 12

    - 11 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls * Some of functions are slightly different depending upon models, refer individual function table on "PART 2. indoor units". ** For ceiling concealed duct models, auto-run function o[...]

  • Seite 13

    - 12 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 2. Air flow 2.1 Auto swing (left & right) Right Left 110 ° ~ 120 ° Open Close 110 ° ~ 120 ° Mode2 Mode3 Mode4 Mode5 Mode6 Mode7 Mode8 Mode9 OPEN CLOSED 7~8 ° 110~120 ° • By the hor[...]

  • Seite 14

    - 13 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 2.4 Air flow step • Indoor fan motor control have 6 steps. • Air volume is controlled "SH", "H", "Med", Low" by remote controller. • "LL" ste[...]

  • Seite 15

    - 14 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 3.1 PLASMA Air Purifying System The PLASMA Air Purifying System not only removes microscopic contaminants and dust, but also removes house mites, pollen, and pet fur to help prevent allergic d[...]

  • Seite 16

    - 15 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 4.1 External pressure setting for 4. Installation Functions (E.S.P . Control) provide required constant air flow rate irrespective of E.S.P . charge. (1) Open the rear cover of the wired remot[...]

  • Seite 17

    - 16 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 4.2 How to Set E.S.P? Out door Room Temp Total on Central Run Defrost Preheat PQRCUCS0C FAN SPEED MODE Lo Med 100 Setting the Low wind to 210 Setting the Medium wind to 175 TEMP TEMP This Func[...]

  • Seite 18

    - 17 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls [ Notes ] 1. To get the desired Airflow & E.S.P. combination from the table set the matching value from the table. Value other than that in table will not give the combinations of airflow [...]

  • Seite 19

    - 18 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 5.1 Hot start • When heating is started, the indoor fan is stopped or very slow to prevent the cold air carry out • When the temp. of heat exchanger reach 30°C(model by model), indoor fan[...]

  • Seite 20

    - 19 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 6. Convenience Functions & Controls 6.1 Auto cleaning operation • Function used to perform Self Cleaning to prevent the Unit from Fungus and bad odor. • Used after the Cooling Operatio[...]

  • Seite 21

    - 20 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 6.2 Auto Operation (Fuzzy Operation) • When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is sele[...]

  • Seite 22

    - 21 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 6.2.3 Fuzzy Operation for Heating • According to the setting temperature selected by Fuzzy rule, when the intake air temp is 3.5°F(3°C) or more above the setting temp, the compressor is tu[...]

  • Seite 23

    - 22 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 2 Functions & Controls 6.4 Child Lock Function 6.5 Forced operation • To operate the appliance by force in case when the remote control is lost, the forced operation selection switch is on the main unit of the app[...]

  • Seite 24

    - 23 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 6.6 Sleep Timer Operation • When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote control while in appliance operation, the operation of the appliance stops. • While the appliance[...]

  • Seite 25

    - 24 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 3. Control logic 1. Compressor .................................................................................................................. ....25 2. Step(frequency) control ............................................[...]

  • Seite 26

    - 25 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 3 Control logic Basic principle is to control the rpm of the motor by changing the working frequency of the compressor. Three phase voltage is supplied to the motor and the time for which the voltage will supplied is co[...]

  • Seite 27

    Part 3 Control logic - 26 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 2.1 Frequency control Frequency that corresponds to each rooms capacity will be determined according to the difference in the temperature of each room and the temperature set by the remote controller. Th[...]

  • Seite 28

    Part 3 Control logic - 27 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1. At the starting (outdoor is powered on,indoor is not) reversing valve continues OFF(cooling). 2. For the cooling and defrosting operation :valve OFF, for the heating operation :valve ON 3. Method of c[...]

  • Seite 29

    Part 3 Control logic - 28 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 1) There can be two situations a) Sensor is failed (error code for sensor failure will be generated) b) Abnormal high temperature discharge temperature (error code for high discharge will be generated) B[...]

  • Seite 30

    - 29 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 3 Control logic 5.1 Function Controlling total current to protect power semiconductor devices from burn-out by the low current (including connecting mistake) and over current. Operating process 1. Detection : check the [...]

  • Seite 31

    - 30 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 3 Control logic 6.1 Function Working of outdoor fan are different in different models. Some models are single fan some are two fan type. 6.2 Operating process Control logic of outdoor fan depends on outdoor temperature [...]

  • Seite 32

    - 31 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 3 Control logic 7.1 Function :These are about the control of compressor, fan of outdoor unit, reversing valve, LEV. 7.2 Starting to the defrosting operation A) Defrost operation will be start when all the conditions bel[...]

  • Seite 33

    - 32 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 3 Control logic 8.1 Control of LEV opening 1. LEV openings have a controllable ranges 70 (option) to 460 (option) pulse in both condition of cooling and heating. 2. Products do not be operated before initializing of LEV[...]

  • Seite 34

    - 33 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 3 Control logic 8.2 Starting control 1) Only 1 LEV will be operate as below and others are closed fully. 2) Starting control does not use the time when the system operate with partial load after (example) after finishin[...]

  • Seite 35

    - 34 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 3 Control logic 1) When the accumulated compressor running time is over 3 hr.(option), oil restoring operation is made for 3 minutes. If itʼs on the way of compressor starting,itʼs made after the starting. 2) Accumula[...]

  • Seite 36

    - 35 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Part 3 Control logic 1 1.1 Function : Power module failure protection by checking the temperature of heat sink. There is a temperature sensor for checking the heat sink temperature. 1 1.2 Heat sink sensor failure error Short[...]

  • Seite 37

    - 36 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 4. T est Run 1. Check before T est Run .....................................................................................................37 2. T est Run Flow chart .........................................................[...]

  • Seite 38

    - 37 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 4. T est Run Check to see whether there is any refrigerant leakage, and check whether the power or transmission cable is connected properly. Check liquid pipe and gas pipe valves are fully opened. NOTE : Be sure to tighten c[...]

  • Seite 39

    - 38 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 4. T est Run Is cold air discharged for more than 3 minutes ? START Test operation for indoor unit Operation mode change to Heating mode Operate the unit in cooling mode. Does Test operation start? Refer to part4, 6 Electric[...]

  • Seite 40

    - 39 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 4. T est Run 3. T est Runing 3.1 PRECAUTIONS IN TEST RUN • The initial power supply must provide at least 90% of the rated voltage. Otherwise, the air conditioner should not be operated. CAUTION: ① For test run, carry ou[...]

  • Seite 41

    - 40 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting 1. Self-diagnosis Function .................................................................................................41 2. Pump Down ...............................................................[...]

  • Seite 42

    - 41 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting 1. Self-diagnosis Function 1.1 Error Indicator (Indoor) Ceiling Cassette T ype Display The number of times to blink = Error code 10 degrees 1 degrees Display ed No . = Error code Standard/Artcool Mirror [...]

  • Seite 43

    - 42 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting 1.3 Error Indicator (Outdoor) Outdoor Error Ex) Error 21 (DC Peack) 1 Time 1 Time 1 Time 2 Times 2 Times 2 Times 1 Sec. 2 Sec. 2 Sec. 1 Sec. 1 Sec. LED01G (RED) LED02G (GREEN) Error Contents LED01G/M LED[...]

  • Seite 44

    - 43 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting • Procedure (1) Confirm that both the 2-way and 3-way valves are set to the open position. – Remove the valve stem caps and confirm that the valve stems are in the raised position. – Be sure to use[...]

  • Seite 45

    - 44 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting • Procedure (1) Connect the vacuum pump to the center hose of charge set center hose (2) Evacuation for approximately one hour. – Confirm that the gauge needle has moved toward 0.8Torr. (3) Close the[...]

  • Seite 46

    - 45 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting Lo Charging cylinder Outdoor unit Indoor unit Liquid side Gas side Open 3-Way valve 3-Way valve OPEN Open Check valve (1) Vacuum Gage • Procedure (1) Connect the charge hose to the charging cylinder. ?[...]

  • Seite 47

    - 46 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting T rouble analysis 1. Check temperature difference between intake and discharge air, and check for the operating current too. Case Symptom Supposed Caused Temp. difference : approx. 0°C Current : less th[...]

  • Seite 48

    - 47 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting 6.1 The Product doesn ’ t operate at all The operation check of the Indoor P.C.B. Ass'y Procedure 1) The input voltage of power mod- ule. 2) The output voltage of power mod- ule. 4) IC04D(7805) 5)[...]

  • Seite 49

    - 48 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting 6.2 The Product doesn't operate with the remote controller Turn on the main power Yes No A "Beeping" sound is made from the indoor unit * Refer to 10.1 * Check the voltage of power (AC230V[...]

  • Seite 50

    - 49 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting Turn on the main power. When in air circulation mode, compressor/outdoor fan is stopped. Turn off main power. Check the electrical wiring diagram of Outdoor side. Check the open or short of connecting wi[...]

  • Seite 51

    - 50 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting 6.4 When indoor Fan does not operate. Check the SSR high speed operation by remote control. (the Indoor Fan Motor is connected) Turn off main power. Check the connection of CN-FAN. Check the Fan Motor. C[...]

  • Seite 52

    - 51 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting • Confirm that the vertical louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the vertical louver with hands ⇒ Normal • Check the conne[...]

  • Seite 53

    - 52 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting 6.6 T roubleshooting Indoor Error Ω 10k Ω Check the resistance Check the voltage V 2.5Vdc 01 02 06 Indoor air sensor Indoor inlet pipe sensor Indoor outlet pipe sensor • Open / Short • Soldered poo[...]

  • Seite 54

    - 53 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting Check the Volt. Indoor Unit V 12Vdc 12V S GND Check the Volt. Wired R/C V 12Vdc 12V S GND CN-REMO 03 Communication Wired R/C • Open / Short • Wrong connection • Connection of wire • Main PCB Volt[...]

  • Seite 55

    - 54 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 5. T rouble Shooting Check the resistance Ω 0 Ω CN Float CN-Float CN-D/PUMP 04 Drain pump / Float switch • Float switch Open. (Normal : short) • The connection of wire(Drain pump/ Float switch) • Drain pump power inp[...]

  • Seite 56

    5. T rouble Shooting - 55 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 07 Different Operation Mode • One of Indoor Unit oper- ate cooling Another Unit operate heating • At the same time, this model cannot use cool and heating mode Display code Title Cause of error Check[...]

  • Seite 57

    5. T rouble Shooting - 56 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 09 Indoor EEPROM Check Sum Error • Check sum error 1. Check the poor soldering 2. Check the insertion condition of the EEPROM 3. Check the PCB Connection Display code Title Cause of error Check point &[...]

  • Seite 58

    5. T rouble Shooting - 57 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 10 Indoor BLDC Fan Motor Lock The Fan is not operated properly Check the Indoor fan locking Display code Title Cause of error Check point & Normal condition Check Point Check the PCB during the Power[...]

  • Seite 59

    5. T rouble Shooting - 58 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 05 / 53 Title Communication (Indoor → Outdoor) • Communication poorly • Power input AC 230V. (Outdoor, Indoor) • The connector for transmission is disconnected. • The connecting wires are misco[...]

  • Seite 60

    5. T rouble Shooting - 59 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 21 DC PEAK (IPM Fault) • Instant over current • Over Rated current • Poor insulation of IPM • An instant over current in the U,V,W phase - Comp lock - The abnormal connection of U,V,W • Over lo[...]

  • Seite 61

    5. T rouble Shooting - 60 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only LED02M LED02M U,V,W CONNECTOR LED01M LED01M U V W U V W LED02M LED01M CAUTION In case that the control box is opend and before checking electrical parts, it should be checked that the LED 01M, 02M turned[...]

  • Seite 62

    5. T rouble Shooting - 61 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 22 Max. C/T Input Over Current(18k- 13A ↑, 24k/36k-20A ↑ ) 1. Malfunction of Compressor 2. Blocking of Pipe 3. Low Voltage Input 4. Refrigerant, Pipe length, Blocked... Display code Title Cause of er[...]

  • Seite 63

    5. T rouble Shooting - 62 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Check Point 1. Check the power source.(220V ±15%) 2. Check the fan operation is right. 3. Check the current. 4. Check the install condition. 5. Check the CT Sensor Output signal - Check output the CT Se[...]

  • Seite 64

    5. T rouble Shooting - 63 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 23 DC Link Low voltage • DC Link volt is below 140Vdc • Check point & Normal condition • Check theCN_(L),CN_(N) Connection. • At not operating : DC Link voltage(280V ↑ ) • At Comp operati[...]

  • Seite 65

    5. T rouble Shooting - 64 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Check Point 1. Check the WCN_P(L),P(N) Connection condition at the Main PCB.(Refer to outdoor wiring diagram) 2. Check the DC Link voltage at not operating(280V ↑ ) 3. Check the DC Link voltage at Comp[...]

  • Seite 66

    5. T rouble Shooting - 65 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 24 Press S/W Open • Low / High press S/W open. • Check the connection CN_L/PRESS,H/PRESS • Check the components. Display code Title Cause of error Check point & Normal condition Is high pressur[...]

  • Seite 67

    5. T rouble Shooting - 66 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Check Point 1. Check the connection of H/press switch 2. Check short or not at the connector of high pressure switch (Normal open) < Main PCB : Connection Check P oint > < Checking the Press s w[...]

  • Seite 68

    5. T rouble Shooting - 67 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Check Point 1. Check the Input Voltage (L–N ➔ 220V±10%) 2. Check Input Voltage Sensor output voltage (2.5Vdc±10%) 25 Input voltage • Abnormal Input voltage (140Vac , 300Vac) • Check the power s[...]

  • Seite 69

    5. T rouble Shooting - 68 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only GND INPUT(V) < Inv er ter PCB> < Input V oltage Sensing Check P oint > Vdc[...]

  • Seite 70

    5. T rouble Shooting - 69 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 26 DC Compressor Position • Compressor Starting fail error • Check the connection of comp wire “U,V,W” • Malfunction of compressor • Check the component of “IPM”, detection parts. Display[...]

  • Seite 71

    5. T rouble Shooting - 70 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 27 AC Input Instant over Current Error Inverter PCB input current is over100A(peak) for 2us 1. Overload operation (Pipe clogging/Covering/EEV defect/Ref. overcharge) 2. Compressor damage (Insulation dama[...]

  • Seite 72

    5. T rouble Shooting - 71 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only ■ Error Diagnosis and Countermeasure Flow Chart 28 Inverter DC link high voltage error Inv PCB DC link voltage supplied over 420V 1. Input voltage abnormal (L~N) 2. ODU inverter PCB damage(DC Link volt[...]

  • Seite 73

    5. T rouble Shooting - 72 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Check Point 1. Check the CN_(L),CN_(N) Connection condition at the Inverter PCB.(Refer to outdoor wiring diagram) 2. Check the DC Link voltage at not operating(280V ↑ ) 3. Check the DC Link voltage at [...]

  • Seite 74

    5. T rouble Shooting - 73 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 29 Inverter compressor over current Inverter compressor input current is over 30A 1. Overload operation (Pipe clogging/Covering/EEV defect/Ref. over- charge) 2. Compressor damage(Insulation damage/Motor [...]

  • Seite 75

    5. T rouble Shooting - 74 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only LEV Openness (Pulse) COMP Frequency (Hz) Toff(105) ° C T1(90) ° C T2(95) ° C OFF Normal OFF Control Normal Normal Normal D-Pipe temp. 32 D-pipe (Inverter) temp. high (105°C ↑ ) • Discharge sensor[...]

  • Seite 76

    5. T rouble Shooting - 75 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Check Point 1. Check the Input Voltage (L–N ➔ 220V±10%) 2. Check Input Voltage Sensor output voltage (2.5Vdc±10%) Is Inv er ter PCB Normal? No Replace inv er ter PCB assemb ly Is input voltage norm[...]

  • Seite 77

    5. T rouble Shooting - 76 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only GND INPUT(CT) < Inv er ter PCB> < CT Sensing Check P oint > 1 2 3 Vdc 52 Transmission error between (Inverter PCB ➔ Main PCB) Main controller of Master unit of Master unit canʼt receive si[...]

  • Seite 78

    5. T rouble Shooting - 77 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only Ω 41 44 45 46 65 D-pipe sensor (Inverter) Air sensor Condenser Pipe sensor Suction Pipe sensor Heat sink sensor • Open / Short • Soldered poorly • Internal circuit error • Open / Short • Solde[...]

  • Seite 79

    5. T rouble Shooting - 78 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 51 Over capacity • Over capacity Combination • Check the indoor unit capacity. • Check the combination table. Display code Title Cause of error Check point & Normal condition Check Point 1. Che[...]

  • Seite 80

    5. T rouble Shooting - 79 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 60 Inverter PCB & Main EEPROM check sum error EEPROM Access error and Check SUM error 1. EEPROM contact defect/wrong insertion 2. Different EEPROM Version 3. ODU Inverter & Main PCB assembly dama[...]

  • Seite 81

    5. T rouble Shooting - 80 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 61 Condenser pipe sensor temp. high • Condenser pipe sensor detected high temp. • Check the load condition. • Check the sensor of Condenser pipe sensor. Display code Title Cause of error Check poin[...]

  • Seite 82

    5. T rouble Shooting - 81 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 62 Heatsink High error Inverter PCB heatsink temperature is over 85°C 2. ODU fan locking 3. Heatsink assembly of INV PCB assemble condi- tion abnormal 4. Defect of temperature sensing circuit part defec[...]

  • Seite 83

    5. T rouble Shooting - 82 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only PFCM : Measuring resistance between No .19,20 pin 65 Heatsink High error Inverter PCB heatsink sensor is open or short 1. ODU fan locking 2. Heatsink assembly of INV PCB assemble condition abnormal 3. De[...]

  • Seite 84

    5. T rouble Shooting - 83 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 67 Fan Lock Error Fan RPM is 10RPM or less for 5 sec. when ODU fan starts or 40 RPM or less after fan starting. 1. ODU fan locking 2. Heatsink assembly of INV PCB assemble condi- tion abnormal 3. Defect [...]

  • Seite 85

    5. T rouble Shooting - 84 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only 73 AC input instant over cur- rent error (Matter of software) Inverter PCB input power current is over 48A(peak) for 2ms 1. Overload operation (Pipe clogging/Covering/EEV defect/Ref.overcharge) 2. Compre[...]

  • Seite 86

    5. T rouble Shooting - 85 - Copyright ©2010 LG Electronics. Inc. All right reserved. Only for training and service purposes LGE Internal Use Only < Input P ower Source Chec k P oint > < Main PCB wiring Check P oint > N N L N L[...]

  • Seite 87

    P/NO : MFL63744402 NOVEMBER, 2010[...]