Gree GWH09AGAXB-K6DNA1B/O Service Manual
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Service Manual
GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI

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May 13, 2025

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Summary of Contents for Gree GWH09AGAXB-K6DNA1B/O

  • Page 1 Change for life Service Manual GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI...
  • Page 2: Table Of Contents

    6. Function and Control ..........38 6.1 Remote Controller Introduction ................38 6.2 Brief Description of Models and Functions ..........51 6.3 GREE+ App Operation Manual ................54 6.4 Ewpe Smart App Operation Manual ..............55 Part II : Installation and Maintenance ....56 7.
  • Page 3 Service Manual 8.5 Installation of Indoor Unit ..................68 8.6 Installation of Outdoor Unit ................70 8.7 Vacuum Pumping and Leak Detection ............71 8.8 Check after Installation and Test Operation ..........72 9. Maintenance ..............73 9.1 Error Code List ......................73 9.2 Procedure of Troubleshooting ................78 9.3 Troubleshooting for Normal Malfunction ............90...
  • Page 4: Part I : Technical Information

    1. Summary Service Manual Indoor Unit: A1 panel A2 panel A4 panel A3 panel A5 panel A6 panel A7 panel Outdoor Unit: GWH09AGAXB-K6DNA1B/O GWH09AGBXB-K6DNA1A/O GWH12AGBXB-K6DNA1A/O GWH12AGCXB-K6DNA1A/O GWH09AGA-K6DNA1A/O GWH18ALD-K6DNA1A/O Technical Information...
  • Page 5 Service Manual GWH24ALE-K6DNA2B/O GWH07AGA-K6DNA1A/O GWH24ALD-K6DNA1B/O GWH24ALD-K6DNA1B/O Technical Information...
  • Page 6 CB385W01000 (WiFi) 4 GWH09AAAXB-K6DNA2B CB477007000 GWH09AAAXB-K6DNA2B/I CB477N07000 CB399004400 CB399N04400 GWH09AAAXB-K6DNA6B GWH09AAAXB-K6DNA6B/I CB399004401 CB399N04401 CB479008200 CB479N08200 GWH09AGAXB-K6DNA1B/O CB385W09900 GWH09AAAXB-K6DNA4B GWH09AAAXB-K6DNA4B/I CB479008201 CB479N08201 9 GWH09AAAXB-K6DNA3B CB478005700 GWH09AAAXB-K6DNA3B/I CB478N05700 10 GWH09AAAXB-K6DNA5B CB488004900 GWH09AAAXB-K6DNA5B/I CB488N04900 11 GWH09AABXB-K6DNA2A CB477007200 GWH09AABXB-K6DNA2A/I CB477N07200 12 GWH09AABXB-K6DNA7A CB514001200 GWH09AABXB-K6DNA7A/I...
  • Page 7: Specifications

    2. Specifications Service Manual 2.1 Specification Sheet GWH07AAAXA-K6DNA6B Model GWH09AAA-K6DNA6A GWH07AAAXA-K6DNA4B CB399005000 Product Code CB399003401 CB479008400 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 2200 2500 Heating Capacity 2400 2800 Cooling Power Input Heating Power Input Cooling Current Input Heating Current Input...
  • Page 8 Service Manual Outdoor Unit Model GWH07AGA-K6DNA1A/O GWH09AGA-K6DNA1A/O Outdoor Unit Product Code CB385W01100 CB385W01000 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD. COMPRESSOR CO., LTD. Compressor Model QXF-N075zC170 FTz-AN075ACBF-A Compressor Oil FW68DA FW68DA Compressor Type Rotary Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method...
  • Page 9 Service Manual GWH09AAAXB-K6DNA2B GWH09AABXB-K6DNA1A GWH09AAAXB-K6DNA3B GWH09AABXB-K6DNA2A Model GWH09AAAXB-K6DNA4B GWH09AABXB-K6DNA7A GWH09AAAXB-K6DNA5B GWH09AABXB-K6DNA6A GWH09AAAXB-K6DNA6B CB477007000 CB476009200 CB478005700 CB477007200 Product Code CB479008200/CB479008201 CB514001200 CB488004900 CB399005600 CB399004400/CB399004401 Rated Voltage 220-240 220-240 Power Supply Rated Frequency Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 2700 2500 Heating Capacity 2800...
  • Page 10 Service Manual Outdoor Unit Model GWH09AGBXB-K6DNA1A/O GWH09AGAXB-K6DNA1B/O Outdoor Unit Product Code CB385W17100 CB385W09900 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD. COMPRESSOR CO., LTD. Compressor Model QXF-A082zC170 QXF-A082zC170 Compressor Oil ZE-G;ES RB68GX or equivalent ZE-G;ES RB68GX or equivalent Compressor Type...
  • Page 11 Service Manual GWH12AABXB-K6DNA1A GWH12AABXB-K6DNA2A GWH12AABXB-K6DNA3A GWH12AACXB-K6DNA2A Model GWH12AABXB-K6DNA4A GWH12AACXB-K6DNA6A GWH12AABXB-K6DNA5A GWH12AABXB-K6DNA6A GWH12AABXB-K6DNA7A CB476009000 CB477006900/CB477006901 CB478005600 CB477007100 Product Code CB479008300/CB479008301 CB399005700 CB488005000 CB399004500/CB399004501 CB514001000 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity 3200 3200 Heating Capacity 3400...
  • Page 12 Service Manual Outdoor Unit Model GWH12AGCXB-K6DNA1A/O GWH12AGBXB-K6DNA1A/O Outdoor Unit Product Code CB385W18000 CB385W17900 ZHUHAI LANDA ZHUHAI LANDA Compressor Manufacturer COMPRESSOR CO., LTD. COMPRESSOR CO., LTD. Compressor Model QXF-N088zC170 QXF-N088zC170 Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA.
  • Page 13 Service Manual Model GWH12AACXB-K6DNA2A Product Code CB477007101 Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity 3200 Heating Capacity 3400 Cooling Power Input Heating Power Input Cooling Current Input 4.14 Heating Current Input 3.87 Rated Input 1500 Rated Cooling Current Rated Heating Current...
  • Page 14 Service Manual Outdoor Unit Model GWH12AGCXB-K6DNA1A/O Outdoor Unit Product Code CB385W18000 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model QXF-N088zC170 Compressor Oil FW68DA or equivalent Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector Throttling Method Capillary Set Temperature Range ºC...
  • Page 15 Service Manual GWH18AADXB-K6DNA1A Model GWH18AAD-K6DNA6A GWH18AAD-K6DNA6E CB399002400 Product Code CB476009100 CB399003102 220-240 220-240 Rated Voltage Power Rated Frequency Supply Phases Outdoor Outdoor Power Supply Mode 4600 4600 Cooling Capacity 5200 5200 Heating Capacity 1355 1355 Cooling Power Input 1340 1340 Heating Power Input Cooling Current Input Heating Current Input...
  • Page 16 Service Manual Outdoor Unit Model GWH18ALD-K6DNA1A/O GWH18ALD-K6DNA1A/O Outdoor Unit Product Code CB513W01600 CB513W01602 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO., LTD. CO., LTD. Compressor Model FTz-AN108ACBD FTz-AN108ACBD Compressor Oil FW68DA or equivalent FW68DA or equivalent Compressor Type Rotary Rotary Compressor LRA.
  • Page 17 Service Manual GWH24AAE-K6DNA6B Model GWH24AAD-K6DNA6B CB399002300 Product Code CB399003201 220-240 220-240 Rated Voltage Power Rated Frequency Supply Phases Outdoor Outdoor Power Supply Mode 6200 6200 Cooling Capacity 6500 6500 Heating Capacity 1771 1827 Cooling Power Input 1646 1912 Heating Power Input Cooling Current Input Heating Current Input 2200...
  • Page 18 Service Manual Outdoor Unit Model GWH24ALE-K6DNA2B/O GWH24ALD-K6DNA1B/O Outdoor Unit Product Code CB532W01300 CB513W02201 ZHUHAI LANDA ZHUHAI LANDA COMPRESSOR Compressor Manufacturer COMPRESSOR CO., LTD. CO., LTD. Compressor Model FTz-SM151AXBD FTz-SM151AXBD Compressor Oil FW68DA FW68DA Compressor Type Rotary Rotary Compressor LRA. 6.06 Compressor RLA 6.06 Compressor Power Input...
  • Page 19 Service Manual GWH24AAE-K6DNA2B GWH24AAEXE-K6DNA4B Model CB477003900 CB479007600 Product Code 220-240 220-240 Rated Voltage Power Rated Frequency Supply Phases Outdoor Outdoor Power Supply Mode 6200 6200 Cooling Capacity 6500 6500 Heating Capacity 1771 1771 Cooling Power Input 1646 1646 Heating Power Input Cooling Current Input Heating Current Input 2200...
  • Page 20 Service Manual Outdoor Unit Model GWH24ALE-K6DNA2B/O GWH24ALE-K6DNA2B/O Outdoor Unit Product Code CB532W01300 CB532W01300 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO., LTD. CO., LTD. Compressor Model FTz-SM151AXBD FTz-SM151AXBD Compressor Oil FW68DA FW68DA Compressor Type Rotary Rotary Compressor LRA. Compressor RLA 6.06 6.06 Compressor Power Input...
  • Page 21 Service Manual GWH24AAD-K6DNA6B Model CB399003203 Product Code 220-240 Rated Voltage Power Rated Frequency Supply Phases Outdoor Power Supply Mode 6200 Cooling Capacity 6500 Heating Capacity 1827 Cooling Power Input 1912 Heating Power Input Cooling Current Input Heating Current Input 2300 Rated Input Rated Cooling Current 10.2...
  • Page 22 Service Manual Outdoor Unit Model GWH24ALD-K6DNA1B/O Outdoor Unit Product Code CB513W02200 Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO., LTD. Compressor Model FTz-SM151AXBD Compressor Oil FW68DA Compressor Type Rotary Compressor LRA. Compressor RLA 6.06 Compressor Power Input 1330 Compressor Overload Protector Throttling Method Capillary Set Temperature Range ºC...
  • Page 23: Capacity Variation Ratio According To Temperature

    Service Manual 2.2 Capacity Variation Ratio According to Temperature Heating operation ambient temperature range is -15ºC~24ºC Heating Cooling Conditions Condition Indoor:DB27°C WB19°C Indoor:DB20°C Indoor air flow: High Indoor air flow:Super High Pipe length:5m Pipe length:5m Outdoor temp.(°C) Outdoor temp.(°C) Heating operation ambient temperature range is -22ºC~24ºC 2.3 Cooling and Heating Data Sheet in Rated Frequency Cooling He ating...
  • Page 24: Outline Dimension Diagram

    3. Outline Dimension Diagram Service Manual 3.1 Indoor Unit AAA/AAB (2 3/4) (2 61/64) (5 1/8) (3 17/64) (7 31/64) (5 33/64) (6 1/16) (3 7/64) Unit:mm Model 1080 Technical Information...
  • Page 25: Outdoor Unit

    Service Manual 3.2 Outdoor Unit GWH09AGAXB-K6DNA1B/O GWH09AGBXB-K6DNA1A/O GWH12AGBXB-K6DNA1A/O GWH12AGCXB-K6DNA1A/O GWC18ATDXD-K3NNA1A/O GWH18ALD-K6DNA1A/O Unit:mm GWH07AGA-K6DNA1A/O Unit:mm Technical Information...
  • Page 26 Service Manual GWH09AGA-K6DNA1A/O Unit:mm GWH24ALD-K6DNA1B/O Unit:mm Technical Information...
  • Page 27 Service Manual GWH24ALE-K6DNA2B/O Unit:mm Technical Information...
  • Page 28: Refrigerant System Diagram

    COOLING 4. Refrigerant System Diagram Service Manual Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Capillary Strainer Strainer COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...
  • Page 29: Electrical Part

    5. Electrical Part Service Manual 5.1 Wiring Diagram ●Instruction Symbol Symbol Color Symbol Symbol Color Symbol Name White Green Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ●...
  • Page 30 Service Manual GWH09AAAXB-K6DNA2B/I GWH09AABXB-K6DNA2A/I GWH12AABXB-K6DNA2A/I GWH09AABXB-K6DNA7A/I GWH09AABXB-K6DNA1A/I GWH09AABXB-K6DNA6A/I(CB399N05600) GWH09AAAXB-K6DNA6B/I(CB399N04401) GWH09AAAXB-K6DNA4B/I(CB479N08201) GWH09AAAXB-K6DNA5B/I(CB488N04900) GWH12AABXB-K6DNA1A/I(CB476N09000) GWH12AABXB-K6DNA4A/I(CB479N08301) GWH12AABXB-K6DNA6A/I(CB399N04501) GWH12AABXB-K6DNA7A/I(CB514N01000) GWH12AABXB-K6DNA5A/I(CB488N05000) TUBE ROOM WIFI TEMP. TEMP. RECEIVER AND MODULE SENSOR SENSOR DISPLAY BOARD DISPLAY EARTH-PLATE YEGN EVAPORATOR T-SENSOR DISP1 DISP2 WIFI YEGN N(1) PRINTED CIRCUIT BOARD JUMP COM-OUT AC-L...
  • Page 31 Service Manual GWH18AAD-K6DNA6E/I GWH24AAE-K6DNA2B/I GWH24AAEXE-K6DNA4B/I TUBE ROOM WIFI TEMP. TEMP. RECEIVER AND MODULE SENSOR SENSOR DISPLAY BOARD DISPLAY MAGNETIC TERMINAL T-SENSOR DISP1 DISP2 WIFI RING BLOCK N(1) COM-OUT JUMP PRINTED CIRCUIT BOARD AC-L(L) YEGN CONNECTING YEGN CABLE SWING-UD EVAPORATOR 60000700068811 FAN MOTOR STEPPING MOTOR...
  • Page 32 Service Manual GWH12AACXB-K6DNA2A/I OPTIONAL OPTIONAL TUBE WIFI ROOM WIRED MODULE TEMP. RECEIVER AND CONTROLLER TEMP. SENSOR DISPLAY BOARD FAN MOTOR SENSOR MAGNETIC TERMINAL RING COM-MANUAL BLOCK DISP1 DISP2 T-SENSOR WIFI N(1) COM-OUT PRINTED CIRCUIT BOARD JUMP AC-L(L) YEGN DRY-C (DOOR-C) SWING-UD SWING-LR YEGN...
  • Page 33 Service Manual ● Outdoor Unit OPTIONAL OPTIONAL OPTIONAL WARNING Bottom OUTROOM EXHAUST 4-WAY ELECTRONIC OUTTUBE Please don't touch any Band EXPANSION VALVE TEMP. TEMP. TEMP. terminal when the machine VALVE Heater SENSOR SENSOR SENSOR is running ,stopping or has been powered off for (YE) less than 30 minutes to prevent the risk of...
  • Page 34 Service Manual GWH09AGAXB-K6DNA1B/O(CB385W09900) OPTIONAL OPTIONAL OPTIONAL OUTROOM EXHAUST OUTTUBE WARNING 4-WAY ELECTRONIC Bottom EXPANSION VALVE TEMP. TEMP. TEMP. Band Please don't touch any VALVE terminal when the machine is SENSOR SENSOR SENSOR Heater running ,stopping or has been powered off for less than 30...
  • Page 35: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit 18/24K GWH12AACXB-K6DNA2A/I GWH12AACXB-K6DNA6A/I Name Name Interface of health function neutral wire Interface of ultraviolet cleaning (only for the model with this function) Neutral wire terminal 12 WIFI terminal Motor terminal 13 Wired controller terminal Interface of health function 14 Interface of display board live wire...
  • Page 36 Service Manual 07/09K GWH12AABXB-K6DNA2A/I(CB477N06900/CB477N06901) GWH12AABXB-K6DNA2A/I GWH12AABXB-K6DNA6A/I GWH12AABXB-K6DNA4A/I GWH12AABXB-K6DNA7A/I Name Name Fuse Interface of PG feedback Live wire interface 10 Swing interface Interface of health function neutral wire Jumper cap (only for the model with this function) Neutral wire interface 12 Interface of temperature sensor Interface of PG motor 13 Display interface Interface of health function live wire(only...
  • Page 37 Service Manual GWH24ALD-K6DNA1B/O(CB513W02200) Name Name Neutral wire Display interface Interface of health function live wire 10 WIFI interface DC fan interface Grounding wire Terminal with outdoor unit Up&down swing interface communication wire Left&right swing interface 13 Live wire interface Interface of wired controller 14 Interface of health function neutral wire Interface of gate control 15 Interface of ultraviolet clean...
  • Page 38 Service Manual Outdoor Unit Name Name E store 4-way valve Electronic expansion valve Neutral wire Overload 10 communication cable Temperature sensor Live wire Outdoor fan 12 Earthing wire DRED(preliminary) 13 Fuse Electric heating belt of chasssis 14 Three-phase terminal of compressor Technical Information...
  • Page 39 Service Manual 09/12/18K Name Earthing wire Neutral wire, live wire and communication cable 4-way valve Electric heating belt of chasssis Outdoor fan Electronic expansion valve Overload terminal of compressor Temperature sensor Three-phase terminal of compressor Technical Information...
  • Page 40 Service Manual Name Neutral wire, live wire and communication cable 4-way valve electric heating belt of chasssis Electronic expansion valve Outdoor fan Temperature sensor Overload terminal of compressor Three-phase terminal of compressor Technical Information...
  • Page 41: Function And Control

    6. Function and Control Service Manual 6.1 Remote Controller Introduction Buttons on remote controller NOTE: YAP1F2(WiFi) ● This is a general use remote controller, it could be used for the air conditioners with multifunction; For some function, which the model doesn't have, if press the corresponding button on the remote controller that the unit will keep the original running status.
  • Page 42 Service Manual on indoor ambient temperature). angle can be selected circularly as below: ● Set temperature range from remote controller: 16~30°C (61~86°F); Fan speed: auto, low speed, medium speed, high no display (stops at current speed. position) NOTE: ● This indicator is not available for some models. ●...
  • Page 43: Function Introduction For Combination Buttons

    Service Manual ● When selecting " " or no display with remote controller, Press "TURBO" button and the remote controller won't send signal. temperature indicator on indoor unit displays set temperature. ● Sleep function and 8°C heating function can't operate at the ●...
  • Page 44 Service Manual 3.Place two 7# (AAA 1.5V) dry batteries, and make sure the position of “ + ” polar and “ - ” polar is correct (as shown in Fig 2 ③ ). 4.Reinstall the cover (as shown in Fig 2 ④ ). ①...
  • Page 45 Service Manual NOTICE: 1. This is a general use remote controller. It could be used for the air conditioner with multifunction. For the functions which the model doesn't have, if press the corresponding button on the remote controller, the unit will keep the original running status.
  • Page 46 Service Manual button This button is used for setting Fan Speed in the sequence that goes from AUTO, , then back to Auto. NOTE: NOTE: ● Press this button continuously more than 2s, the main unit will ● Under AUTO speed, air conditioner will select proper fan speed swing back and forth from left to right, and then loosen the button, automatically according to factory default setting.
  • Page 47 Service Manual button decrease 1 minute. If hold " " or " " button, 2s later, time will T-ON T-OFF change quickly. Release this button when reaching your required ● T-ON button time. Press "CLOCK" button to confirm the time. " "...
  • Page 48 Service Manual I feel directly for confirmation. Set fan speed NOTE: In the above presetting or enquiry procedure, if Turbo mode continuously within 10s, there is no button pressed, the sleep Send signal curve setting within 10s, there is no button pressed, the sleep Auto mode curve setting status will be automatically quit and resume to Cool mode...
  • Page 49 Service Manual 8°C heating function ● This function is only available for some models. Under heat mode, press "TEMP" and "CLOCK" buttons simultaneously to start up or turn off 8°C heating function. When function this function is started up, " " and "8°C" will be shown on remote Press "MODE"...
  • Page 50 Service Manual between them. ● Signal may be interfered easily in the room where there is fluorescent lamp or wireless telephone; remote controller should be close to indoor unit during operation. ● Replace new batteries of the same model when replacement is required.
  • Page 51 Service Manual Buttons on remote controller Introduction for buttons on remote controller Notice: ● This is a general use remote controller. It could be used for YAW1F5(WiFi) the air conditioner with multifunction. For the functions which the model doesn't have, if press the corresponding button on the remote controller, the unit will keep the original running status.
  • Page 52 Service Manual Press this button again to cancel Sleep function. Under Fan and When WiFi function is turned on, " WiFi " icon will be displayed on Auto modes, this function is unavailable. the remote controller; when WiFi function is turned off, " WiFi " icon will disappear.
  • Page 53 Service Manual Notice: ● During operation, point the remote control signal sender at the receiving window on indoor unit. ● The distance between signal sender and receiving window should be no more than 8m, and there should be no obstacles between them.
  • Page 54: Brief Description Of Models And Functions

    Service Manual 6.2 Brief Description of Models and Functions Indoor Unit (3) Auto fan ● 1.Basic function of system Heating mode: During auto heating mode or normal heating ode, auto fan speed will adjust the fan speed automatically according (1)Cooling mode to ambient temperature and set temperature.
  • Page 55: Turbo Function

    Service Manual Outdoor Unit temperature display status (corresponding remote control code: ● 10) from other display status (corresponding remote control code: 1. Cooling mode: 00, 01,11),controller will display indoor ambient temperature for 3s and then turn back to display set temperature. Working condition and process of cooling mode: Under this mode, indoor fan operates at set fan speed.
  • Page 56 Service Manual is changed to heating mode from cooling or drying mode, 4-way valve will be energized in 2~3mins delay. Note: Tcompensation is determined by IDU and ODU. If IDU controls the compensation temperature, then Tcompensation is determined according to the value sent by IDU to ODU; If IDU does not control the compensation temperature, then Tcompensation will default to 3℃...
  • Page 57: Gree+ App Operation Manual

    GREE+ App Download Linkage Scan the QR code or search "GREE+" in the application market to download and install it. When "GREE+" App is installed, register the account and add the device to achieve long-distance control and LAN control of Gree smart home appliances.
  • Page 58: Ewpe Smart App Operation Manual

    Service Manual 6.4 Ewpe Smart App Operation Manual Control Flow Chart Internet Cloud intelligent Home Wi-Fi Cellular/ home Other Wi-FI appliances Home wireless router Home Wi-Fi Operating Systems Requirement for User's smart phone: iOS system Android system Support iOS7.0 and Support Android 4.4 and above version above version...
  • Page 59: Notes For Installation And Maintenance

    7. Notes for Installation and Maintenance Service Manual Safety Precautions: Important! 11. For the air conditioner without plug, an air switch must be installed in the circuit. The air switch should be all-pole parting and the contact parting distance should be more than Please read the safety precautions carefully before 3mm.
  • Page 60: Safety Precautions For Installing And Relocating The Unit

    Service Manual Safety Precautions for Installing and Relocating the Unit: To ensure safety, please be mindful of the following precautions. WARNINGS 1. When installing or relocating the unit, be sure to 5.When installing the unit, make sure that connection keep the refrigerant circuit free from air or substances pipe is securely connected before the compressor other than the specified refrigerant.
  • Page 61: Safety Operation Of Flammable Refrigerant

    Service Manual Safety Precautions for Refrigerant This marking indicates that this product should not be disposed with other house hold wastes. To prevent possible ● To realize the function of the air conditioner unit, a special harm to the environment or human health from uncontrolled refrigerant circulates in the system.
  • Page 62: Maintenance Notes

    Service Manual table a - Minimum room area ( m ● The refrigerant should be recycled into the specialized storage tank. Charge Floor Window Wall Ceiling amount 5. Filling the refrigerant location mounted mounted mounted (kg) ≤1.2 ● Use the refrigerant filling appliances specialized for R32. 14.5 Make sure that different kinds of refrigerant wont contaminate 16.8...
  • Page 63 Service Manual then no electrical supply shall be connected to the circuit safely disperse any released refrigerant and preferably expel until it is satisfactorily dealt with. If the fault cannot be it externally into the atmosphere. corrected immediately but it is necessary to continue ●...
  • Page 64 Service Manual No person carrying out work in relation to a refrigerating ● Cabling system which involves exposing any pipe work shall use Check that cabling will not be subject to wear, corrosion, any sources of ignition in such a manner that it may lead to excessive pressure, vibration, sharp edges or any other the risk of fire or explosion.
  • Page 65 Service Manual shall be used. However, for flammable refrigerants it is Prior to recharging the system, it shall be pressure-tested important that best practice is followed since flammability is with the appropriate purging gas. The system shall be leak- a consideration. The following procedure shall be adhered to: tested on completion of charging but prior to commissioning.
  • Page 66 Service Manual Equipment shall be labelled stating that it has been de- complete with leak-free disconnect couplings and in good commissioned and emptied of refrigerant. The label shall condition. Before using the recovery machine, check that it is be dated and signed. For appliances contain-ing flammable in satisfactory working order, has been properly maintained refrigerants, ensure that there are la- bels on the equipment and that any associated electrical components are sealed to...
  • Page 67: Main Tools For Installation And Maintenance

    Service Manual Main Tools for Installation and Maintenance Level meter Measuring tape Screw driver Impact drill Drill head Electric drill Electroprobe Universal meter Inner hexagon Electronic Torque wrench Open-end wrench spanner leakage detector Vacuum pump Pressure meter Pipe pliers Pipe pliers Pipe cutter Pipe expander Pipe bender...
  • Page 68: Installation

    8. Installation Service Manual 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 15cm At least 15cm At least 15cm Space to the wall Space to the wall At least 15cm Space to the obstruction At least 50cm Drainage pipe Drainage pipe...
  • Page 69: Installation Procedures

    Service Manual Installation Procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...
  • Page 70: Installation Parts-Checking

    Service Manual 8.2 Installation Parts-checking 3. Outdoor Unit: (1) Select a location where the noise and outflow air emitted by Name the outdoor unit will not affect neighborhood. (2) The location should be well ventilated and dry, in which the Indoor unit outdoor unit wont be exposed directly to sunlight or strong wind.
  • Page 71: Installation Of Indoor Unit

    Service Manual 8.5 Installation of Indoor Unit 4. Outlet Pipe (1) The pipe can be led out in the direction of right, rear right, left 1. Choosing Installation Iocation or rear left.(As show in Fig.3) Recommend the installation location to the client and then confirm (2) When selecting leading out the pipe from left or right, please it with the client.
  • Page 72 Service Manual 6. Install Drain Hose 07/09K 18/24K (1) Connect the drain hose to the outlet pipe of indoor unit.(As 12K except GWH12AACXB-K6DNA2A/I GWH12AACXB-K6DNA2A/I show in Fig.8) N(1) N(1) (2) Bind the joint with tape.(As show in Fig.9) yellow- blue black brown blue...
  • Page 73: Installation Of Outdoor Unit

    Service Manual Note: (1) The power cord and control wire Can't be crossed or winding. (2) The drain hose should be bound at the bottom. 9. Hang the Indoor Unit Drain vent (1) Put the bound pipes in the wall pipe and then make them pass Chassis Drain hose Outdoor drain joint...
  • Page 74: Vacuum Pumping And Leak Detection

    Service Manual 5. Connect Outdoor Electric Wire (1) Remove the wire clip; connect the power connection wire and signal control wire (only for cooling and heating unit) to the wiring terminal according to the color; fix them with screws.(As show in The drain hose can't be fluctuant Fig.23) 07/09/12/18/24K...
  • Page 75: Check After Installation And Test Operation

    Service Manual 8.8 Check after Installation and Test Operation 1. Check after Installation Check according to the following requirement after finishing installation. Items to be checked Possible malfunction Has the unit been installed The unit may drop, shake or firmly? emit noise.
  • Page 76: Maintenance

    9. Maintenance Service Manual 9.1 Error Code List Error Malfunction name AC status Possible causes code 1. Jumper cap is not installed in control panel; 2. Poor contact of jumper cap; Malfunction of jumper cap The complete unit stops operation 3.
  • Page 77 Service Manual Error Malfunction name AC status Possible causes code 1. Temperature sensor is not well connected or damaged; Liquid valve temperature 2. The wire of temperature sensor is damaged, causing short sensor is ON / short- circuit to copper pipe or outer casing; circuited 3.
  • Page 78 Service Manual Error Malfunction name AC status Possible causes code Cool/Dry: compressor and outdoor 1. Temperature sensor is not connected well or damaged; Outdoor condenser tem- fan stop operation, while indoor 2. Temperature sensor wire of outdoor unit is damaged; short perature sensor is open/ fan operates;...
  • Page 79 Service Manual Error Malfunction name AC status Possible causes code 1. Outdoor ambient temperature exceeds the operation range Cool: compressor and outdoor of unit (e.g.: less than 20°C or more than 60°C for cooling; more fan stops operation, while indoor than 30°C for heating);...
  • Page 80 Service Manual Error Malfunction name AC status Possible causes code Cool/Dry: compressor stops opera- DC bus voltage drop mal- tion, while indoor fan operates; The power voltage is unstable. function Heat: all loads stops operation. Cool: compressor and outdoor fan stops operation, while indoor 1.
  • Page 81: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting 1. Troubleshooting for jumper cap Main check points: (1) jumper cap (2) control board of indoor unit Display shows “C5” Check whether the main Insert the equipped board of controller is inserted with jumper cap jumper cap.
  • Page 82: Communication Malfunction

    Service Manual 2. Communication malfunction Main check points: (1) Connection wire between indoor unit and outdoor unit (2) Wiring inside the unit (3) Communication circuit of control board of indoor unit (4) Communication circuit of control board of outdoor unit Start Check whether the unit has operated normally before...
  • Page 83: Ipm Protection

    Service Manual 3. IPM protection , over-phase current of compressor Main check points: (1) compressor COMP terminal (2) power supply voltage (3) compressor (4) charging amount of refrigerant (5) air inlet and air outlet of indoor/outdoor unit NOTE: The control board as below means the control board of outdoor unit. Put through the power and turn on the unit...
  • Page 84 Service Manual 4. Overload protection of compressor , high discharge temperature, protection of compressor Main check points: (1) electronic expansion valve (2) expansion valve terminal (3) charging amount of refrigerant (4) overload protector NOTE: The control board as below means the control board of outdoor unit. After the unit has been cut off the power for more than 20mins...
  • Page 85 Service Manual 5. Troubleshooting for temperature sensor , , , , Main check points: (1) connection terminal (2) temperature sensor (3) main board Start Check whether the connection terminal between the temperature sensor and the control board is loose or not connected well.
  • Page 86 Service Manual 6. High temperature prevention protection ; high power ; system is abnormal Main check points: (1) outdoor temperature (2) fan (3)air inlet and air outlet of indoor/outdoor unit NOTE: The control board as below means the control board of outdoor unit. Overload protection, high temperature prevention protection...
  • Page 87 Service Manual 7. Desynchronization diagnosis for compressor Main check point: (1) system pressure (2) power supply voltage NOTE: The control board as below means the control board of outdoor unit. Desynchronization occurs Desynchronization occurs during operation after turning on the unit Check whether the fan Replace the fan Does the outdoor fan operate...
  • Page 88 Service Manual 8. Malfunction diagnosis for failure startup Main check points: (1) compressor wire (2) compressor (3) charging amount of refrigerant NOTE: The control board as below means the control board of outdoor unit. Put through the power and turn on the unit The time for stop operation is not enough and the system's high pressure and low pressure is...
  • Page 89 Service Manual 9. Charging malfunction of capacitor Main check points: (1) wiring board XT (2) reactor NOTE: The control board as below means the control board of outdoor unit. Put through the power to turn on the unit and then wait for 1min Measure the voltage at both ends of electrolytic capacitor with DC voltmeter.
  • Page 90 Service Manual 10. Troubleshooting-motor(indoor fan) doesn't operate Main check points: (1) connection terminal (2) motor (3) control board AP1 of indoor unit (4) blade 10.1 DC motor Display shows "H6" Pull the blade with hand under de-energization status Check whether the Adjust the motor and the blade blade operates smoothly to make the motor operate...
  • Page 91 Service Manual 10.2 PG motor Display shows "H6" Pull the blade with hand under de- energization status Adjust the motor and Check whether the blade to make the the blade operates blade operate smoothly smoothly. Eliminate malfunction Check whether Insert the feedback the feedback terminal of terminal again indoor fan's motor...
  • Page 92 Service Manual 11. AC overcurrent protection Start The normal fluctuation is about 10% of rated Eliminate malfunction The power voltage is unstable. voltage on the nameplate. The power voltage is too low and the Adjust the power voltage to make it normal. Eliminate malfunction load is too high.
  • Page 93: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Can't be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor connection After energization, operation indicator isnt bright wait for power recovery.
  • Page 94 Service Manual 4. ODU Fan Motor Can't Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Wrong wire connection, or poor Check the wiring status according to circuit Connect wires according to wiring diagram to make connection diagram sure all wiring terminals are connected firmly Measure the capacity of fan capacitor with an Capacity of the ODU fan motor is universal meter and find that the capacity is out of...
  • Page 95: Exploded View And Parts List

    10. Exploded View and Parts List Service Manual 10.1 Indoor Unit AAA/AAB ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 96 Service Manual Description Description Front Panel Rubber Plug (Water Tray) Display Board Stepping Motor Front Case Crank Axile Bush Drainage Hose Helicoid Tongue Electric Box Cover2 Left Axile Bush Electric Box Assy Rear Case assy Terminal Board Cross Flow Fan Jumper O-Gasket sub-assy of Bearing Main Board...
  • Page 97 Service Manual 4-way airflow ON/OFF MODE I FEEL T-ON T-OFF TEMP CLOCK LIGHT WiFi SLEEP The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 98 Service Manual Description Description Front Panel Electric Box Assy Display Board Axile Bush Front Case Terminal Board Helicoid Tongue Jumper Left Axile Bush Main Board Rear Case assy Electric Box Cover Sub-Assy Drainage Hose Shield Cover of Electric Box Cover Ring of Bearing Electric Box Cover O-Gasket sub-assy of Bearing...
  • Page 99 Service Manual The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 100 Service Manual Description Description Front Panel Connecting pipe clamp Display Board Crank Filter Sub-Assy Stepping Motor Front Case Drainage Hose Guide Louver Electric Box Assy Axile Bush Lower Shield of Electric Box Air Louver Electric Box Helicoid Tongue Jumper Left Axile Bush Main Board Rear Case assy Shield Cover of Electric Box...
  • Page 101 Service Manual 4-way airflow The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 102 Service Manual Description Description Decorative Strip Stepping Motor Front Panel Assy Drainage Hose Display Board Electric Box Assy Filter Sub-Assy Lower Shield of Electric Box Decorative Board (Left) Electric Box Front Case Jumper Guide Louver Main Board Axile Bush Air Louver Air Louver 1 Stepping Motor Helicoid Tongue...
  • Page 103 Service Manual The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 104 Service Manual Description Description Front Panel Drainage Hose Filter Sub-Assy Stepping Motor Screw Cover Crank Front Case Guide Louver Air Louver(Manual) Axile Bush Helicoid Tongue Electric Box Left Axile Bush Terminal Board Rear Case assy Electric Box Cover2 Rubber Plug (Water Tray) Main Board Ring of Bearing Display Board...
  • Page 105 Service Manual 4-way airflow The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 106 Service Manual Description Description Air Louver 1 Front Panel Assy Air Louver Filter Sub-Assy Stepping Motor Screw Cover Guide Louver Front Case Assy Axile Bush Swing Lever Electric Box Air Louver 1 Terminal Board Helicoid Tongue Electric Box Cover2 Left Axile Bush Main Board Rear Case assy Display Board...
  • Page 107: Outdoor Unit

    Service Manual 10.2 Outdoor Unit GWH07AGA-K6DNA1A/O The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 108 Service Manual Description Description Left Side Plate Handle Motor Support Valve Support Block Top Cover Sub-Assy Right Side Plate Top Cover Cut off Valve Condenser Sub-Assy Valve Support Sponge(Condenser) Sensor Insert Condenser Assy Compressor and Fittings Electric Box Assy 4-Way Valve Assy Electric Box Chassis Sub-Assy Temp Sensor Sleeving...
  • Page 109 Service Manual GWH09AGA-K6DNA1A/O 33 34 The component is only for reference;please refer to the actual product. Installation and Maintenance...
  • Page 110 Service Manual Description Description Coping Chassis Sub-assy Supporting Board(Condenser) Motor Support 4-Way Valve Brushless DC Motor Sponge(Condenser) Axial Flow Fan Temperature Sensor Support Cabinet Condenser Assy Front Grill Capillary Sub-assy Drainage Joint(ODU) Sensor Insert Left Side Plate Right Side Plate Clapboard Earthing Plate Sub-assy Electric Box Assy...
  • Page 111 Service Manual GWH09AGAXB-K6DNA1B/O GWH09AGBXB-K6DNA1A/O 12/18K The component picture is only for reference; please refer to the actual product. Installation and Maintenance...
  • Page 112 Service Manual Description Description Coping Compressor and Fittings Supporting Board(Condenser) Chassis Sub-assy 4-Way Valve Motor Support Sponge(Condenser) Brushless DC Motor Temperature Sensor Support Axial Flow Fan Condenser Assy Cabinet Capillary Sub-assy Front Grill Sensor Insert Drainage Joint(ODU) Right Side Plate Left Side Plate Earthing Plate Sub-assy Clapboard...
  • Page 113 Service Manual Note:The appearance of front grill is for reference only. The component is only for rererence;please refer to the actual product Installation and Maintenance...
  • Page 114 Service Manual Description Description Front Panel Assy Valve Support Block Front grill Valve Cover Front Panel Handle Axial Flow Fan Sensor Insert Drainage hole Cap Temp Sensor Sleeving Chassis Sub-assy Condenser Assy Drainage Joint Clapboard Sub-Assy Compressor and Fittings Motor Support Sub-Assy Compressor Gasket Top Cover Sub-Assy 4-Way Valve...
  • Page 115: Removal Procedure

    11. Removal Procedure Service Manual 11.1 Removal Procedure of Indoor Unit Caution: discharge the refrigerant completely before removal. Step Procedure 1.Remove filter Panel Open the panel. Clasps Loosen the clasp shown in the fig and then pull the left filter and right filer outwards to remove them. Left filter and right filer AAA/AAB/AAC 2.Remove horizontal louver...
  • Page 116 Service Manual Step Procedure Panel 3.Remove panel Display Open the front panel; separate the panel rotation shaft Front panel from the groove fixing the front panel and then removes the front panel. Note: The display of some models is fixed on the panel; Panel rotation unscrew the screws fixing the display on the panel before removing the panel.
  • Page 117 Service Manual Step Procedure electric box 6.Remove electric box assy Remove the screw fixing electric box assy. clasps Step motor Grounding Indoor tube temperature sensor screw Electric box assy Main board ① Cut off the wire binder and pull out the indoor tube temperature sensor.
  • Page 118 Service Manual Step Procedure 7.Remove evaporator assy Remove 3 screws fixing evaporator assy. Screw At the back of the unit, Loosen the clasp,connection pipe clamp and then remove the connection pipe Connection pipe clamp clamp. Clasp Groove Rear Case assy First remove the left side of evaporator from the groove of bottom shell and then remove the right side from the clasp on the bottom shell.
  • Page 119 Service Manual Step Procedure 8.Remove motor and cross flow blade Motor clasp Remove 3 screws fixing motor clamp and then remove the motor clamp. Screws Cross flow Remove the at the connection place of cross flow blade Motor and motor; lift the motor and cross flow blade upwards to remove them.
  • Page 120: Removal Procedure Of Outdoor Unit

    Service Manual Caution: discharge the refrigerant 11.2 Removal Procedure of Outdoor Unit completely before removal. Step Procedure 1. Before disassembly 2. Remove big handle and valve cover big handle Remove the connection screw fixing the big handle and then remove the valve cover. valve cover 3.
  • Page 121 Service Manual Step Procedure 4. Remove grille grille Remove connection screws between the front grille and the front panel. Then remove the grille. 5. Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel.
  • Page 122 Service Manual Step Procedure 7. Remove axial flow blade axial flow blade Remove the nut on the blade and then remove the axial flow blade. 8. Remove motor and motor support motor support motor Remove the tapping screws fixing the motor and disconnect the leading wire insert of the motor.
  • Page 123 Service Manual Step Procedure 10. Remove isolation sheet isolation sheet Remove the screws fixing the isolation sheet and then remove the isolation sheet. 11. Remove compressor 4-way valve Unsolder the welding joint connecting the capillary, valves and the outlet pipe of condenser to remove the capillary.
  • Page 124 Service Manual GWH09AGA-K6DNA1A/O Step Procedure 1. Before disassembly 2. Remove big handle and valve cover big handle Remove the connection screw fixing the big handle and then remove the valve cover. valve cover 3. Remove top cover top cover Remove connection screws connecting the top panel with the front panel and the right side plate, and then remove the top panel.
  • Page 125 Service Manual Step Procedure 4. Remove grille grille Remove connection screws between the front grille and the front panel. Then remove the grille. 5. Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel.
  • Page 126 Service Manual Step Procedure 7. Remove axial flow blade axial flow blade Remove the nut on the blade and then remove the axial flow blade. 8. Remove motor and motor support motor support motor Remove the tapping screws fixing the motor and disconnect the leading wire insert of the motor.
  • Page 127 Service Manual Step Procedure 10. Remove isolation sheet Remove the screws fixing the isolation sheet and then remove the isolation sheet. isolation sheet 11. Remove compressor Unsolder the welding joint connecting the capillary, valves and the outlet pipe of condenser to remove the capillary.
  • Page 128 Service Manual GWH09AGAXB-K6DNA1B/O GWH09AGBXB-K6DNA1A/O 12/18K Step Procedure 1. Before disassembly 2. Remove big handle and valve cover big handle Remove the connection screw fixing the big handle and then remove the valve cover. valve cover 3. Remove top cover top cover...
  • Page 129 Service Manual Step Procedure 4. Remove grille grille Remove connection screws between the front grille and the front panel. Then remove the grille. 5. Remove front panel Remove connection screws connecting the front panel with the chassis and the motor support and then remove the front panel.
  • Page 130 Service Manual Step Procedure 7. Remove axial flow blade axial flow blade Remove the nut on the blade and then remove the axial flow blade. 8. Remove motor and motor support motor support Remove the tapping screws fixing the motor and motor disconnect the leading wire insert of the motor.
  • Page 131 Service Manual Step Procedure 10. Remove isolation sheet Remove the screws fixing the isolation sheet and then remove the isolation sheet. isolation sheet 11. Remove compressor 4-way valve Unsolder the welding joint connecting the capillary, valves and the outlet pipe of condenser to remove the capillary.
  • Page 132 Service Manual Caution: discharge the refrigerant completely before removal. Note:The appearance of front grill is for reference only. Step Procedure 1. Before disassembly 2. Remove valve cover valve cover Remove the connection screw and then remove the valve cover. 3. Remove big handle Remove the connection screw and then remove the big handle.
  • Page 133 Service Manual Step Procedure 4. Remove top cover top cover Remove connection screws connecting the top panel with the front panel and the right side plate, and then remove the top panel. 5. Remove grille Remove connection screws between the front grille and the front panel.
  • Page 134 Service Manual Step Procedure 7. Remove right side plate right side plate Remove connection screws connecting the right side plate with the valve support and the electric box. Then remove the right side plate. 8. Remove the nut and gasket on the blade and then remove the axial flow blade gasket Remove the nut and gasket on the blade and then...
  • Page 135 Service Manual Step Procedure 10. Remove Electric Box Assy Remove screws fixing the electric box subassembly; loosen the wire bundle and unplug the wiring terminals. Then lift the electric box to remove it. Electric Box Assy 11. Remove isolation sheet Remove the screws fixing the isolation sheet and then remove the isolation sheet.
  • Page 136 Service Manual Step Procedure 13. Remove left side plate Remove the screws fixing the left side plate and then remove the left side plate. left side plate 14. Remove condenser sub-assy Remove the screws fixing the Remove condenser sub- assy and then remove the Remove condenser sub- condenser sub-assy assy.
  • Page 137: Appendix

    Appendix Service Manual Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius Fahrenheit display Fahrenheit Celsius temperature(℉) temperature(℉) temperature(℉) (℉) (℃) (℉) (℃)...
  • Page 138: Appendix 3: Pipe Expanding Method

    Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Improper pipe expanding is the main cause of refrigerant leakage.Please expand Pipe cutter the pipe according to the following steps: A:Cut the pip Leaning Uneven Burr ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...
  • Page 139: Appendix 4: List Of Resistance For Temperature Sensor

    Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units(15K) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.10 49.02 18.75 7.97 128.60 44.31 17.14 7.35 115.00 40.09 15.68 6.79 102.90 36.32...
  • Page 140 JF00304747 GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai,Guangdong, China, 519070 Tel: (+86-756) 8522219 Fax: (+86-756) 8669426 E-mail: global@cn.gree.com For product improvement, specifications and appearance in this manual are subject to change without prior notice.

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