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Confidential
CodeZero
SERVICE MANUAL
For Vacuum and Auto Empty charging Station Set Model
CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
Buyer Model Name : A9******
Factory Model Name : S99******
Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication, modification, copying or transmission of this
Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service
Manual. The material covered by this prohibition includes, without limitation, any text, graphics or logos in this Service Manual.
Copyright © 2021 LG Electronics Inc. All rights reserved. Only training and service purposes
MFL68043161_Rev00. 08252021
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Table of Contents
Related Manuals for LG CodeZero A9 Series
Summary of Contents for LG CodeZero A9 Series
- Page 1 Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
- Page 2 Table of Contents ■ LG CodeZoro Vacuum ....................3 ■ LG CodeZero Auto Empty Charging Station ..............54 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 3 Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
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Page 4: Table Of Contents
■ Technical Note on the Part .........14 ■ Exploded view of structure and list of parts ...47 ■ Directions for Use ............15 ■ Using the Smart Function ..........24 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 5: Product Specifications
NOTE • Dual batteries (two) or a single battery (one) is provided, depending on the model. • Dimensions include the product body, expandable pipe and nozzle. Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 6: Structure And Name Of Each Part
Structure and name of each part Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 7 Structure and name of each part Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 8: Vacuum Features
Standard mode, each battery can be used for approximately 40 minutes when fully charged, allowing up to approximately 80 minutes cleaning. 4. Wireless type vacuum A wireless type vacuum solves problems related to limited cord length. Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 9: Before Use
• Static electricity can be generated by the product body through environmental factors such as temperature and humidity. If the problem persists, contact the LG Electronics Service Centre. • When cleaning a high place, support the bottom of the product body with your hand. -
Page 10: Precautions And Directions For Use
Precautions and directions for use -10- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 11 Precautions and directions for use -11- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 12 Precautions and directions for use -12- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 13: Maintenance
• Always install the exhaust filter and free filter into the vacuum body after cleaning them. If you use the product without installing the filters, dust may get into the motor inside the product and cause failure. -13- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 14: Technical Note On The Part
Model name S9****** Item Classification Motor integrated in the product body Power DC 25.2V Power consumption 370W (MAX : 590W) Service life More than 700 hours -14- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 15: Directions For Use
Directions for Use -15- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 16 Directions for Use -16- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 17 Directions for Use -17- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 18 Directions for Use -18- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 19 Directions for Use -19- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 20 Directions for Use -20- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 21 Directions for Use -21- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 22 Directions for Use -22- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 23 Directions for Use -23- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 24: Using The Smart Function
Using the Smart Function -24- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 25 Using the Smart Function -25- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 26: How To Disassemble, Reassemble And Repair Main Parts
(5) Press the Handy (6) Remove the (7) Remove the front (8) Turn and remove part firmly. housing. cover. the frame assembly filter. -26- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 27 (7) Push the upper hook (8) Pull the main PCB part. (9) Reassemble following part and the main PCB the reverse order of part. disassembly. -27- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 28 (9) Remove the motor screws from the air body, gasket and located in the product guide. harness. body. (10) Reassemble following the reverse order of disassembly. -28- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 29 (11) Remove the motor (12) Disassemble the cover and disassemble the harness connector and and wire as shown in motor assembly. replace the motor. the photograph. -29- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 30 (2) Work on other spots to (3) Hold the decor assay hooks. with a (-) screwdriver to widen the decor as and pull to remove it. widen the decor. above. -30- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 31 * Be sure use the new screws when to fasten the screws on the mop plate. * When assembly the mop plate. - Screw (Left side) : Clockwise - Screw (Right side) : Counterclockwise * Do not let wire be pressed -31- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 32 - Screw (Right side) : Counterclockwise * Do not let wire be pressed (3) Assemble the harness as shown in the (4) Assemble the harness as shown in the picture. picture. -32- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 33 7. Check the battery status. 8. Judge whether it is normal or not and determine the type of defect. -33- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 34 Measure the voltage of battery 2) 0 ~ 10.0V : defected - LED lights on (X) → → Replace the battery Measure the voltage of batter -34- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 35 5. Press the bottom plate assembly where the spring is fitted, installing it vertically downward so that it lines up to the groove, as shown in the photograph. -35- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 36: Safety Precautions And Checkpoints For Repairs
2. When carrying out the current carrying test across the circuit diagram, do not bring a pin or a coin into contact with any live part. 확인점검 3. Be sure to use only an LG designated part for any replacement made during repairs. -36- Copyright ©... -
Page 37: Actual Wiring Diagram
Actual wiring diagram -37- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 38: Circuit Diagram
Circuit diagram -38- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 39 Circuit diagram • Main PCB (Power) -39- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 40 Circuit diagram • Main PCB (Mop nozzle) • LED PCB (Mop Nozzle for North America) • Motor PCB (Mop Nozzle for North America) -40- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 41 Circuit diagram • Micom -41- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 42 Circuit diagram • Inverter -42- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 43: Failures And Measures
Turn off the Wi-Fi function and turn it on The icon is off. The motor is faulty. Replace the motor. again, or replace the PCB. -43- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 44 Wi-Fi connection is being made alert icon Re-connect by turning off and on the Icon turned off Wi-Fi function again or replace the PCB [Main body] -44- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 45 3. After cleaning, throw dust away in the trash bin. When throwing it away in the trash bin, operate the dust compression lever two or three times. -45- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 46: Cleaning Function Operation And Error Modes
• If it is considered that the adapter may be faulty, always check whether there is adapter output using a measuring device. • 29.1V - 29.7V -46- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 47: Exploded View Of Structure And List Of Parts
Exploded view of structure and list of parts Series ■ Nozzle Assembly, Floor ■ Nozzle Assembly, Quilt AGB501 MEG501 AGB403 AGU001 AHR706 ACW102 AAN701 AGB403 EAU401 MEG501 AGU001 ACW102 AAN701 Copyright © LG Electronics Inc. All rights reserved. AGB403 EAU401 Only training and service purposes... - Page 48 #EV# Exploded view of structure and list of parts ■ Nozzle Assembly, Turbine AGB402 AHR702 EAD902 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 49 Exploded view of structure and list of parts ■ Nozzle Assembly, Mop (for North America) AGB404 MBL801 AJL002 AGM910 MFC501 ACQ201 MGQ001 EBR403 EBR301 ABA404 AGU901 ABA504 FAB603 FAB604 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 50 ADQ901 MBG103 ADQ001 MCR601 EBR101 AJJ103 ABH801 MDS501 EAU702 MCK601 MEK720 EBR801 EBZ504 MGE801 MGJ101 MCK201 ACW205 ABN902 EAD201 MCR801 AGM919 AGM916 ADV705 AGU504 MJM804 MFC801 AJL101 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 51 #EV# Exploded view of structure and list of parts ■ Accessories AAA201 ABC901 AGB401 AAA601 ABC801 ■ Battery EAC204 ■ Adjustable extension tube AGR322 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 52 #EV# Exploded view of structure and list of parts ■ Power Drive Mini Nozzle AGB405 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 54 Any reproduction, duplication, distribution (including by way of email, facsimile or other electronic means), publication, modification, copying or transmission of this Service Manual is STRICTLY PROHIBITED unless you have obtained the prior written consent of the LG Electronics entity from which you received this Service Manual.
- Page 55 ■ How to clean the product ...........67 ■ Exploded view of structure and list of parts ...97 ■ How to disassemble, assemble and repair main parts ..........69 -55- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 56: Product Specifications
DC 25.2 V / 2400 mAh / 1EA or 2EA * 1 Dual batteries (2 batteries) or a single battery (1 battery) is provided depending on the A9S cleaner model purchased. -56- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 57: Structure And Name Of Each Part
Structure and name of each part -57- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 58: Precautions And Direction For Use
Precautions and direction for use -58- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 59 Precautions and direction for use -59- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 60 Precautions and direction for use -60- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 61: Installing The Product
Installing the product -61- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 62 Installing the product -62- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 63 Installing the product -63- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 64: Using The Product
Using the product -64- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 65 Using the product -65- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 66 Using the product -66- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 67: How To Clean The Product
How to clean the product -67- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 68 How to clean the product -68- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 69: How To Disassemble, Assemble And Repair Main Parts
※ As the end of the heat sink is sharp, be sure to carry out the operation whilst wearing gloves. -69- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 70 (10) Remove the (11) Loosen the 4 (12) Remove all Main screws at the rear case. screws shown at PCB connectors. back. the bottom of the product. -70- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 71 (10) Remove the (11) Loosen the 4 (12) Remove all Main screws at the rear case. screws shown at PCB connectors. back. the bottom of the product. -71- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 72 (15) Twist and remove the bracket (16) Reassemble halves. on the left the motor case and then from the product body. following the side. remove the gear. reverse order of disassembly. -72- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 73 (9) Take out the motor case and (10) Loosen the hook on the left motor remove the gasket. and right sides of the case housing and open the case cover. gasket. -73- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 74: Safety Precautions And Checkpoints For Repairs
2. When carrying out the current carrying test across the circuit diagram, do not bring a pin or a coin into contact with any live part. Confirmation and check 3. Be sure to use only an LG designated part for any replacement made during repairs. -74- Copyright © LG Electronics Inc. All rights reserved. -
Page 75: Actual Wiring Diagram
CN21 CN30 L/G/N (Sealing)(Green) CN30 CN21 CN28 CN16 CN27 Micro Switch (Door) Synchro Motor 1 (Door)(Orange) UV LED Pressure Handy Terminal Micro Switch Sensor Suction Motor -75- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... -
Page 76: Circuit Diagram
Circuit diagram -76- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 77 Circuit diagram -77- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 78: Failures And Measures
Replace the battery. The Main PCB is faulty. Replace the Main PCB. The harness is connected Check the harness connection status and incorrectly. replace it if necessary. -78- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 79 Charging the product body Auxiliary battery detection(14,16pin) the bottom plate. battery(1,2pin) CN16 UV LED(18,20pin) Charging the auxiliary battery (3,4pin) Dust bag Full/ DC Motor(5~10Pin) Bin sensing -79- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 80 2. Check if the Micro S/W operates. -, Check if the Gear presses down the Micro S/W. -, Check if the colour of the Micro S/W Harness is black (normal position). -80- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 81 4. If there are no foreign objects in the channel but the Damper won't operate, replace the Damper. If the abnormality persists after replacing the Damper, replace the pressure sensor. -81- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 82 No foreign objects on the charging terminal - Move to “3. Charging failure (2/2)“ -82- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 83 Micro Switch on not attached and a voltage of the Auxiliary battery is 28.1V or higher is normal when pressed. the product body is attached. -83- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 84 PCBA, and then check check again to see operation (2/3)” again if the product if the product body body is detected. is detected. -84- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 85 (Operating time: Approximately 5 seconds) “Move to 4. Dust emptying operation <Cover is closed> <Cover is open> Check using (3/3)” a flash light -85- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 86 (Operation to unlock the failure”. product on both sides) (Operating time: Approximately 7 seconds) An ending buzzer sounds and the cycle is completed normally. -86- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 87 Not full Normal insertion Check if the Is 5V measured at Replace the Main Main PCBA? PCBA Main PCBA is (EBR33171201) faulty. Move to 4-2 Display failure. -87- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 88 PCBA(EBR33171201) Main PCBA is faulty. Check if the voltage between No. 2 pin (5V) and No. 12 pin (GND) of the Main PCBA CN30 is 5V -88- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 89 Replace the Display PCBA (EBR32115302) Assemble the gasket in reference to the white line. -89- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 90 Check the AC voltage at the time of operation (100V or higher) ※ Be careful of high voltage when measuring. Replace the sealing (Take cautions against electric shock) motor (6549W1S011M) -90- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 91 (100V or higher) ※ Be careful of high voltage when measuring. Replace the hook (Take cautions against electric shock) removal motor (6549W1S013U) -91- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 92 20V or higher during the (EBR33171201) opening and closing door cycle? Check the DC voltage at the time of operation (DC 20V or higher). Replace the DC motor (EAU61624305). -92- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 93 Check the AC voltage at the time higher during the cycle? (EBR32115101). terminal. of operation (90V or higher). Replace the suction motor. ※ Pay attention to high voltage when measuring. -93- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 94 Does the red LED still Replace the Main flash after the pressure Normal operation PCBA switch connector (CN16) (EBR33171201). is removed from the Main PCBA? The Main PCBA is normal. -94- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 95: Cleaning Function Operation And Error Modes
Using a tester, check if it is disconnected. Replace the Duct Assembly or the Harness. Motor terminal fastened incorrectly Check the terminal fastening and assembly status. Reassemble or replace the Terminal. -95- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 96 Using a tester, check if it is disconnected (Main CN28 and the Replace the Harness or replace the Top The battery terminal is faulty. charging terminal connection harness). Cover Assembly. -96- Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
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Page 97: Exploded View Of Structure And List Of Parts
Exploded view of structure and list of parts ■ Dust emptying charging station MDS1603 MJH4201 ACQ4801 MCK4701 MEG5301 MAZ9001 ADJ4201 ADC0301 MEG5301 ABV9201 ADC0302 ACQ4701 AJL3901 MAZ9001 ACQ5011 ADQ3501 EAD5901 EBR1201 AAA1501 MJY1005 AGU3701 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes... - Page 98 #EV# Exploded view of structure and list of parts ■ Body Cover Assembly 501001B ACQ4701 497721G MFC1001 501001B Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 99 #EV# Exploded view of structure and list of parts ■ Top Cover Assembly ACQ4801 MEZ9218 MHK5505 MCK5201 MDS2205 EBR5301 MBN5601 MDS2206 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 100 Exploded view of structure and list of parts ■ Door Assembly ADC0301 ADC0302 MJH6501 MJH6501 MJP1101 MJP1101 MHJ6102 MHJ6102 MEG5101 MEG5101 MHY4801 MHY4801 MHJ5003 MHJ5003 MJP1101 MJH6601 MJP1101 MJH6601 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 101 MAP3401 EAD6507 ABA1901 654011M MJH4601 MBJ2301 EAD6508 MAK2501 MJH4701 MEA2501 MHJ4901 EAD6509 MHY4801 MAP3401 MEG5201 MGZ8101 MJP2701 MDT3301 MEG5401 MCK5101 MFC1301 MEG6701 ABA0501 MFC1201 MDT2401 654011U MEA2301 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 102 #EV# Exploded view of structure and list of parts ■ Chamber Assembly AJX0701 ABV9201 MBR1401 ACV0103 MDS2301 EAD6502 MEA2401 MHY5001 MFC1101 498748E EAU3809 MDS6164 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...
- Page 103 #EV# Exploded view of structure and list of parts ■ Bottom Plate Assembly MDS0516 AGU3701 MGJ8201 MDS1603 Copyright © LG Electronics Inc. All rights reserved. Only training and service purposes...