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Troubleshooting
Related Manuals for LG EK-H2408C00
Summary of Contents for LG EK-H2408C00
- Page 1 Single Packaged Air Conditioner SERVICE MANUAL MODEL: EK-H2408C00...
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Page 2: Table Of Contents
Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions ..........................3 Model Number Nomenclature ....................8 General Data ..........................9 Dimensions ..........................10 Refrigerant Circuit diagram....................11 Wiring Diagram........................12 Trouble Shooting Guide......................13 Electric Parts Trouble Shooting Guide................. 17 Feature of Controller......................24 Exploded View and Replacement Parts List................ -
Page 3: Safety Precautions
Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. I Be sure to read before installing the air conditioner. I Be sure to observe the cautions specified here as they include important items related to safety. I Incorrect operation due to ignoring instruction will cause harm or damage. - Page 4 Safety Precautions Use the specified wires to Do not install, remove, or re- Be cautious when unpacking and connect the unit. install the unit by yourself installing the product. (customer). • There is risk of fire or electric • There is risk of fire, electric •...
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Page 5: Service Manual
Safety Precautions Do not allow water to run into Do not store or use flammable gas Do not use the product in a electric parts. or combustibles near the product. tightly closed space for a long time. • It may cause There is risk of fire, •... - Page 6 Safety Precautions When the product is not be used for a long time, Take care to ensure that nobody could step on or disconnect the power supply plug or turn off the fall onto the unit. breaker. • There is risk of product damage or failure, or •...
- Page 7 Safety Precautions I Operation Do not expose the skin directly to cool air for long Do not use the product for special purposes, such as preserving periods of time. (Don't sit in the draft.) foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system.
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Page 8: Model Number Nomenclature
Model Number Nomenclature Model Number Nomenclature E K - H 2 4 0 8 C 0 0 6 7 8 Changwon/R-410A Turkey/R410A Manufacturing plant/Refrigerant Turkey/R-22 Changwon/R-22 Single packed Air Conditioner Classification Ducted split Air Conditioner Cooling Only Type Heat pump Capacity(Btu/h) 036(36000 Btu/h)~360(360000Btu/h) 380~415V, 50Hz, 3Phase... -
Page 9: General Data
General Data General Data Nominal ton (Ton) Models EK-H2408C00 Capacity Cooling Capacity (net) (Btu/hr) 225,000 65,941 (Kcal/h) 56,699 Heating Capacity (net) (Btu/hr) 250,000 73,268 (Kcal/h) 62,999 Electrical Data Voltage (V,PH) 380~415V , 3PH M.C.A (with standard motor) Cooling/Heating (Amps) Power Input... -
Page 10: Dimensions
Dimensions Dimensions UNIT Dimensions (Figure 1A) Unit: inch(mm) CLEARANCE 34" UNITS 20RT CLEARANCE 16" (1250) (2200) (2898) (180) (1230) (80) (80) CLEARANCE 34" CLEARANCE 46" Figure 1A HORIZONTAL FLOW APPLICATION (Figure 1B) CLEARANCE 34" Unit: inch(mm) CLEARANCE 16" 20RT UNITS (880) (448) (600) -
Page 11: Refrigerant Circuit Diagram
Refrigerant Circuit Diagram Refrigerant Circuit Diagram CAPILLARY TUBE OUTDOOR INDOOR 2.0(I.D)*1EA PRESSURE PRESSURE COIL COIL 3.36(I.D)*23EA CHECK PORT CHECK PORT CAPILLARY TUBE 1.8(I.D)*9EA HI PRESSURE SWTICH ACCUM Cooling Heating CHECK CHECK VALVE VALVE LOW PRESSURE SWTICH COMP COMP CHECK CAPILLARY TUBE CAPILLARY TUBE VALVE 2.0(I.D)*3EA... -
Page 12: Wiring Diagram
Wiring Diagram Wiring Diagram EK-H2408C00 3854U20290U 54 003399 19 Rev:a 12 Single Packaged Air Conditioner... -
Page 13: Troubleshooting Guide
Troubleshooting Guide Troubleshooting Guide PACKAGE AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM MAXIMUM 380~415V 342V 457V 1. No cooling and heating operation performed 1) Both the blower and the compressor do not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Other parts except the •... - Page 14 Troubleshooting Guide 3) Only outdoor fan does not work WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Motor • Over-heated Check how it is insulated. Repair or replace it. • Wire short Electric Wiring Cut off of wiring Check it with a tester. Rewiring or repair.
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Page 15: The Units Discontinue After The Operation Started
Troubleshooting Guide 2. The Units discontinue after the operation started WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Wash it by means of Coil is dirty *1 Checking Outdoor coil something like chemical washing. Extract air by vacuum In-condensable gas Air intruded into the In the event that pump, then replenish blended. -
Page 16: The Unit Is Working, But Not Cooling And Heating Sufficiently
Troubleshooting Guide 3. The unit is working, but not cooling and heating sufficiently (Both blower and compressor are working) WHAT TROUBLED COMPLAINTS HOW TO CHECK REMEDY Load Much Cooling or Heating Heat load increased. Do necessary disposal Window or door has many load respectively. -
Page 17: Electronic Parts Troubleshooting Guide
Electronic parts Troubleshooting Guide Electronic parts Troubleshooting Guide Possible trouble 1 : The unit does not operate. 1. Check the Fuse. Is the input voltage of 2. Check the wiring of AC220V. Main PCB AC220V? Is the output voltage of IC03D(7812 ) on the 1. - Page 18 Electronic parts Troubleshooting Guide Possible trouble 3 : Key input of remote-controller does not respond. 1. Check or repair Connector wiring. Is the connection between MAIN PCB and remote-controller 2. Exchange the Connector. correct? 1. Replace the pressed key. Is any key on the remote-controller 2.
- Page 19 Electronic parts Troubleshooting Guide Possible trouble 5 : No cooling operation performed. Is the unit operating? 1. Press power ON/OFF button. 1. Press cooling operation key. Is the cooling mode? 2. After reenergizing power supply, press power "ON/OFF" button. 1. Set following. Set Temp.
- Page 20 Electronic parts Troubleshooting Guide Possible trouble 6 : No heater operation performed. Is the heater operation? 1. Select heater operation mode. 1. Reconnecting power supply. Is the heater LCD "ON"? Press Heater Key. 1. Set following. Set temp. > Room temp.? 'Set temp.
- Page 21 Electronic parts Troubleshooting Guide Possible trouble 7 : No humidifier operation performed. 1. Press cooling or fan operation Is the indoor fan operation? or heater operation key. Is the HUMID LCD "ON"? 1. Press humidifier Key. Is the output voltage of IC03D on the 1.
- Page 22 Electronic parts Troubleshooting Guide Possible trouble 8 : Indoor motor does not operate. 1. Press power ON/OFF button. Is the unit operating? 2. Reconnect the power supply. Is the output voltage of IC02M's 14PIN on 1. Check or exchange IC01M. the MAIN PCB 0V? Is the voltage between 1PIN(IN) of CN-FAN(IN) and...
- Page 23 Electronic parts Troubleshooting Guide Possible trouble 10 : No heater operation performed. Is the heater operation? 1. Select heater operation mode. 1. Reconnecting power supply. Is the heater LCD "ON"? Press Heater Key. 1. Set following. Set temp. > Room temp.? 'Set temp.
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Page 24: Features Of Controller
Features of Controller Features of Controller 1. Main Controller Circuit Diagram 24 Single Packaged Air Conditioner... -
Page 25: Feature Of Controller
Features of Controller 2. Feature of Main Controller CN_ZONE ZD01F Service Manual 25... - Page 26 Features of Controller 3. Feature of Remote-Controller PCB ASS'Y 4. Feature of Remote-Controller LCD AUTO SWING OPERATION SET TEMP SUB FUNCTION Room Temp AUTO Heater Preheat Defrost Humidify Filter Out door 1 2 3 4 Time ZONE Timer Operation unit Program set Set no.
- Page 27 Features of Controller 5. Error Mode & Corrective Method Cause of error Sensing condition of error Method of SVC Error mode Remark Room OPEN/SHORT of Voltage of sensing: Over 4.8V 1. Check the voltage of "CO1H" temp.(25°C) on the remote controller. CH01 room temp.
- Page 28 LG No (OPTIONAL) 5400298512 EK-H2408C00 5400296908 5400305202 5400390201 5400390202 5400403001 Heat Pump ARCELIK-LG No (OPTIONAL) 7. Principal partlist of Main PCB ASM Part No LG Part Name Remarks Part No ARCELIK-LG EAN30788301 5400403601 MICOM(MAIN) 6920WRD008A 5400403701 RELAY RY3,4,5,10,11,13,14 6920AQ9054F 5400061906...
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Page 29: Flow Chart
Features of Controller 9. Explanation of principal function I Flow Chart START(Power supply) 1. Initialize "micom". 2. A/D convert. 3. Main PCB: Waiting cooling operation. 4. Remote controller: Waiting input. Dehumidification Mode? Heater operation mode? Power ON? Dehumidification operating Set Temp. > Indoor Temp. Cooling Mode? Stop condition? Heater operating... -
Page 30: Exploded View And Replacement Parts List
Exploded View and Replacement Parts List Exploded View and Replacement Parts List • Exploded View 237204-2 435312 237204-1 437212 137213-1 554160 552202 548490 566000-2 559010 552201 566000-1 561410 263230 561410 354210 552111-2 546810 552111-1 137210-2 554031 549610 552111-3 137210-1 330870 359012 342800 346810... -
Page 31: Service Manual
Exploded View and Replacement Parts List •Replacement Parts List LOCATION LG PART No. ARCELIK-LG PART No. DESCRIPTION REMARKS EK-H2408C00 EK-H2408C00 145610-1 PULLEY ASSEMBLY 3A00217S 5400291617 Indoor Motor 145610-2 PULLEY ASSEMBLY 4561A30003E 5400315505 Blower Side 152302 FILTER(MECH),A/C 5230A20003Q 5400303915 249950 CONTROL BOX ASSEMBLY, SINGLE... - Page 32 P/No.: 3828A31005F P/No.: 5400305106 Rev.:a...