Gree GWH09QB-K3DNC2G Service Manual
  1. Manuals
  2. Brands
  3. Gree Manuals
  4. Air Conditioner
  5. GWH09QB-K3DNC2G
  6. Service manual

Gree GWH09QB-K3DNC2G Service Manual

Hide thumbs Also See for GWH09QB-K3DNC2G:
Table of Contents

Advertisement

Quick Links

Change for Life
Service Manual
Models: GWH09QB-K3DNA1G
GWH09QB-K3DNA5G
GWH09QB-K3DNA5G
GWH09QB-K3DNB2G
GWH09QB-K3DNB4G
GWH09QB-K3DNB6G
GWH09QB-K3DNC2G
GWH09QB-K3DNC4G
GWH12QC-K3DNA1G
GWH12QC-K3DNA5G
GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI
GWH12QC-K3DNB2G
GWH12QC-K3DNB4G
GWH12QC-K3DNB6G
GWH12QC-K3DNC2G
GWH12QC-K3DNC4G
(Refrigerant R410A)

Advertisement

Table of Contents
loading

Related Manuals for Gree GWH09QB-K3DNC2G

Summary of Contents for Gree GWH09QB-K3DNC2G

  • Page 1 Change for Life Service Manual Models: GWH09QB-K3DNA1G GWH12QC-K3DNB2G GWH09QB-K3DNA5G GWH12QC-K3DNB4G GWH09QB-K3DNA5G GWH12QC-K3DNB6G GWH09QB-K3DNB2G GWH12QC-K3DNC2G GWH09QB-K3DNB4G GWH12QC-K3DNC4G GWH09QB-K3DNB6G (Refrigerant R410A) GWH09QB-K3DNC2G GWH09QB-K3DNC4G GWH12QC-K3DNA1G GWH12QC-K3DNA5G GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI...
  • Page 2 6.1 Remote Controller IntroductionYV1F7 ................15 6.2 Remote Controller Introduction YAN1F1 ................19 6.3 Operation of Smart Control (Smart Phone, Tablet PC) For Gree ........23 6.4 Operation of Smart Control (Smart Phone, Tablet PC) ..........35 6.5 Brief Description of Modes and Functions ..............47 Part Ⅱ...
  • Page 3 Service Manual 9. Maintenance ......................60 9.1 Error Code List .......................60 9.2 Procedure of Troubleshooting ..................68 9.3 Troubleshooting for Normal Malfunction .................83 10. Exploded View and Parts List ..............85 10.1 Indoor Unit ........................85 10.2 Outdoor Unit .........................93 11. Removal Procedure ..................95 11.1 Removal Procedure of Indoor Unit ................95 11.2 Removal Procedure of Outdoor Unit ................100 Appendix:...
  • Page 4 Service Manual Part Ⅰ : Technical Information 1. Summary Indoor Unit GWH09QB-K3DNA1G/I GWH09QB-K3DNB6G/I GWH12QC-K3DNA1G/I GWH12QC-K3DNB6G/I GWH09QB-K3DNA5G/I GWH09QB-K3DNB4G/I GWH12QC-K3DNA5G/I GWH12QC-K3DNB4G/I GWH09QB-K3DNC2G/I GWH09QB-K3DNC4G/I GWH12QC-K3DNC2G/I GWH12QC-K3DNC4G/I GWH09QB-K3DNB2G/I GWH12QC-K3DNB2G/I Technical Information...
  • Page 5 Service Manual Outdoor Unit GWH09QB-K3DNA1G/O GWH12QC-K3DNA1G/O Remote Controller YV1F7 YAN1F1 GWH09QB-K3DNC2G(CB439000402) YV1F7 All models except YAN1F1 WIFI GWH09QB-K3DNC2G(CB439000402) MODE ON/OFF SWING TIMER ON TIMER OFF CLOCK TURBO SLEEP TEMP IFEEL X-FAN Technical Information...
  • Page 6 2. Specifications 2.1 Specification Sheet Parameter Unit Value 1.GWH09QB-K3DNA1G 1.GWH12QC-K3DNA1G 2.GWH09QB-K3DNB6G 2.GWH12QC-K3DNB6G 3.GWH09QB-K3DNA5G Model 3.GWH12QC-K3DNA5G 4.GWH09QB-K3DNB4G 4.GWH12QC-K3DNB4G 5.GWH09QB-K3DNC2G 5.GWH12QC-K3DNC2G 6.GWH09QB-K3DNC4G 1.CB419005503 2.CB435000404 1.CB419005403 2.CB435000103 Product Code 3.CB425003503 4.CB434002304 3.CB425003603 4.CB434002103 5.CB439000402 6.CB444001202 5.CB439000101 Rated Voltage 220-240 220-240 Power Rated Frequency...
  • Page 7 Service Manual Parameter Unit Value 6.GWH12QC-K3DNB2G Model 7.GWH09QB-K3DNB2G 7.GWH12QC-K3DNC4G 6.CB432002103 Product Code 7.CB432002204 7.CB444001302 Rated Voltage 220-240 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Outdoor Cooling Capacity(Min~Max) 2600(450~3230) 3500(600~3960) Heating Capacity(Min~Max) 2800(450~4100) 3670(600~5130) Cooling Power Input(Min~Max) 805(200~1420) 1084(220~1550) Heating Power Input(Min~Max) 755(200~1550)
  • Page 8 Service Manual Outdoor Unit Model GWH09QB-K3DNA1G/O GWH12QC-K3DNA1G/O Outdoor Unit Product Code CB419W05501 CB419W05401 ZHUHAI LANDA COMPRESSOR ZHUHAI LANDA COMPRESSOR Compressor Manufacturer CO.,LTD CO.,LTD Compressor Model QXA-A086zC190B QXA-A086zC190B Compressor Oil RB68EP RB68EP Compressor Type Rotary Rotary Compressor LRA. Compressor RLA Compressor Power Input Compressor Overload Protector 1NT11L-6233 1NT11L-6233...
  • Page 9 Service Manual 2.2 Operation Characteristic Curve Cooling Heating Condition Condition Indoor:DB 20°C Indoor:DB 27°C WB19°C Indoor air flow: Super High Indoor air flow: Super High Pipe length:4m Pipe length:4m Voltage:230V Voltage:230V Compressor Speed(rps) Compressor Speed(rps) 2.3 Capacity Variation Ratio According to Temperature n i l Condition Condition...
  • Page 10 Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Rated cooling Pressure of gas pipe Inlet and outlet pipe Compressor condition(°C) connecting indoor and temperature of heat Fan speed of Fan speed of Model frequency (DB/WB) outdoor unit exchanger indoor unit outdoor unit...
  • Page 11 Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit 123.5 179.5 168.5 159.5 Φ55 Φ55 Φ55 Φ55 124.7 83.2 Model Unit:mm Technical Information...
  • Page 12 Service Manual 3.2 Outdoor Unit Unit:mm Technical Information...
  • Page 13 Service Manual 4. Refrigerant System Diagram Indoor unit Outdoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Accumlator Suction exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Capillary Electron Strainer expansion valve COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...
  • Page 14 Service Manual 5. Electrical Part 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 15 Service Manual ● Outdoor Unit GWH12QC-K3DNA1G/O 63610000084 GWH09QC-K3DNA1G/O 6361000008404 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Technical Information...
  • Page 16 Service Manual 5.2 PCB Printed Diagram Indoor Unit ● Top view Name Terminal with otdoor unit communication wire Live wire Fuse Neutral wire Health neutral wire PG motor needle stand Health live wire Auto button Up&down swing motor PG feedback interface of indoor fan Detecting plate(WIFI) Interface of tube temperature...
  • Page 17 Service Manual Outdoor Unit ● Top view Name Compressor Reactor 2 Reactor 1 Chassis electric heating Compressor electric heating 4-way valve DC fan Earthing wire Communication wire Neutral wire Live wire Electronic expansion valve Temperature sensor Overloard DRED ● Bottom view Technical Information...
  • Page 18 Service Manual 6. Function and Control 6.1 Remote Controller IntroductionYV1F7 Buttons on remote controller ON/OFF button ▲ button MODE button SWING button WIFI button FAN button TIMER OFF button CLOCK button TIMER ON button SLEEP button TEMP button TURBO button X-FAN button I FEEL button...
  • Page 19 Service Manual HEAT AUTO COOL Technical Information...
  • Page 20 Service Manual Press "MODE" and "TURBO" buttons: About WIFI Funtion Press "MODE" and "TURBO" button simultaneously to turn on or turn off WIFI function. When WIFI function is turned on, the " " icon will be displayed on remote controller; Long press "MODE" and "TURBO" buttons simultaneously for 10s, remote controller will send WIFI reset code and then the WIFI function will be turned on.
  • Page 21 Service Manual Note: ● 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 22 Service Manual 6.2 Remote Controller Introduction YAN1F1 ON/OFF button MODE button WIFI FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button I FEEL button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel Send signal...
  • Page 23 Service Manual Press this button to turn on the unit. Press this button again to turn off the unit. Press this button to increase set temperature. Holding it down above 2 seconds rapidly increases set temperature. In AUTO mode, set temperature is not adjustable. HEAT AUTO COOL...
  • Page 24 Service Manual 12.TURBO button Combination “MODE” and “TURBO” buttons： Press "MODE" and "TURBO" button simultaneously to turn on or turn off WIFI function. When WIFI function is turned on, the " " icon will be displayed on remote controller; Long press "MODE" and "TURBO" buttons simultaneously for 10s, remote controller will send WIFI reset code and then the WIFI function will be turned on.
  • Page 25 Service Manual battery reinstall remove Cover of battery box Note: 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. indoor unit during operation.
  • Page 26 Service Manual 6.3 Operation of Smart Control (Smart Phone, Tablet PC) For Gree Operation Instructions Download and install APP Scan the following QR code with your smart phone and download Wifi Smart. Install the App according to its guidance. When successfully installed, your smart phone homepage will show this icon...
  • Page 27 Service Manual NOTICE: Please select the encrypt mode "empty" if your wifi has been set without password. Functions introduction 1.User registration Purpose: To realize long-distance control Operation instruction: For the first time login, you have to register a new username. If you already have a username, skip the registration step and enter email address and password on the "Login Page"...
  • Page 28 Service Manual (4) If password is forgotten, you can reset the password with your email address. Tap "Forgot password" and enter the page "Forgot password". Tap "Get verification code" to get a email verification code. Enter a new password and tap "OK" to log in. 2.Personal settings Purpose: Set name (device name, preset name, etc.) and images (device image) in order to identify a user easily.
  • Page 29 Service Manual (2) Set preset name Step 1: Tap at the top right corner of the homepage "Device". Select "Add preset" and enter the page "Preset edit". Step 2: Choose the time. Tap "Name". As shown in the picture, its name is "baby room". For timer type, select "On". Then select the repeating days.
  • Page 30 Service Manual to increase or decrease temperature. Tap to change working mode. Tap to enter the page of fan speed adjustment. and go around the circle to adjust fan speed. Step 2: Advanced settings Tap to enter advanced settings. You may select "Air", "Dry", "Health", "Light", "Sleep" or "Energy saving".
  • Page 31 Service Manual Tap "Add scene" and edit the scene name, for example, "Back home". Add execution devices. to add commands. On the page "Select execution device", select the air conditioner named "babyroom". Then select "ON" or "OFF". Continue to select the next execution device as instructed above. Tap to set the interval.
  • Page 32 Service Manual (3) Preset includes single-device preset and multi-device preset Single-device preset: This can preset a certain device to be On/Off at a specific time. On the homepage "Device", take air conditioner "babyroom" as an example.Tap at the bottom of the page "babyroom". Then you will enter the page "Preset edit".
  • Page 33 Service Manual (4) Link(This function is applicable to partial of models) set in the master device, slave devices will execute commands to realize devices Select a master device. When the environment has satisfied the parameters as linkage. Step 1: Set the parameters of master device (Select master device, select environment parameters, select master device status). at the top right corner of the homepage "Home control".
  • Page 34 Service Manual Tap the days below "Repeat" to select the repeating days. Then tap "Save". Step 3: Select "Execute command" Tap "Execute command" and enter the page "Select device". Tap the name of device that you want to control. Tap "ON" or "OFF" and then tap "Save" to complete the linkage. Tap "Save"...
  • Page 35 Service Manual (5) Infrared control (only applicable to smart phone with infrared emitter). Function: Smart phone can be used as a remote controller. at the top right corner of the homepage "Device". Select "Infrared" and enter the page "Remote controller". Tap slide up to enter the page of advanced functions.
  • Page 36 Service Manual Step 2: Another smart phone to be imported. Tap the model name and wait for the download. (2) Backup: To keep backup of the quick configuration information and units information, including backup to cloud and backup list on the cloud.
  • Page 37 Service Manual (3) Settings User can set vibration, message alerts, server, updates, etc. The server setting here must keep the same as the server setting in "Configuration" mentioned before. Otherwise, remote control will be invalid. (4) Feedback User can feedback suggestions to back-stage management for maintenance and development. Tap "Feedback".
  • Page 38 Service Manual 6.4 Operation of Smart Control (Smart Phone, Tablet PC) Operation Instructions Download and install APP Scan the following QR code with your smart phone and download Wifi Smart. Install the App according to its guidance. When successfully installed, your smart phone homepage will show this icon Configuration Before operation, please finish the following configuration in order to realize Wifi control and the connection between air conditioner and intelligent device.
  • Page 39 Service Manual NOTICE: Please select the encrypt mode "empty" if your wifi has been set without password. Functions introduction 1.User registration Operation instruction: For the first time login, you have to register a new username. If you already have a username, skip the registration step and enter email address and password on the "Login Page"...
  • Page 40 Service Manual (4) If password is forgotten, you can reset the password with your email address. Tap "Forgot password" and enter the page "Forgot password". Tap "Get verification code" to get a email verification code. Enter a new password and tap "OK" to log in. 2.Personal settings Purpose: Set name (device name, preset name, etc.) and images (device image) in order to identify a user easily.
  • Page 41 Service Manual (2) Set preset name Step 1: Tap at the top right corner of the homepage "Device". Select "Add preset" and enter the page "Preset edit". Step 2: Choose the time. Tap "Name". As shown in the picture, its name is "baby room". For timer type, select "On". Then select the repeating days.
  • Page 42 Service Manual to increase or decrease temperature. Tap to change working mode. Tap to enter the page of fan speed adjustment. and go around the circle to adjust fan speed. Step 2: Advanced settings Tap to enter advanced settings. You may select "Air", "Dry", "Health", "Light", "Sleep" or "Energy saving". (2) Advanced control functions: Set scene;...
  • Page 43 Service Manual Tap "Add scene" and edit the scene name, for example, "Back home". Add execution devices. to add commands. On the page "Select execution device", select the air conditioner named "babyroom". Then select "ON" or "OFF". Continue to select the next execution device as instructed above. Tap to set the interval.
  • Page 44 Service Manual Slide up and down to set the time. If you want to synchronize the time, tap " synchronize".If such "Hint" interface hasnt appeared, please skip this operation procedure. Tap "Name" to customize the preset name. Preset device cant be selected and it will default to "babyroom". Select "On" for the timer type. Select repeating days to complete the preset.
  • Page 45 Service Manual (4) Link(This function is applicable to partial of models) set in the master device, slave devices will execute commands to realize devices Select a master device. When the environment has satisfied the parameters as linkage. Step 1: Set the parameters of master device (Select master device, select environment parameters, select master device status). at the top right corner of the homepage "Device".
  • Page 46 Service Manual Tap the days below "Repeat" to select the repeating days. Then tap "Save". Step 3: Select "Execute command" Tap "Execute command" and enter the page "Select device". Tap the name of device that you want to control. Tap "ON" or "OFF" and then tap "Save" to complete the linkage. Technical Information...
  • Page 47 Service Manual Tap "Save" and then repeat the above steps to set linkage of several scenes. (5) Infrared control (only applicable to smart phone with infrared emitter). Function: Smart phone can be used as a r emote controller. at the top right corner of the homepage "Device". Select "Infrared" and enter the page "Remote controller". Tap and slide up to enter the page of advanced functions.
  • Page 48 Service Manual Step 2: Another smart phone to be imported. Tap the model name and wait for the download. (2) Backup: To keep backup of the quick configuration information and units information, including backup to cloud and backup list on the cloud.
  • Page 49 Service Manual Select "Backup list on the cloud". Then backup records will appear. Tap "Record" to download data and recover data to local unit. (3) Settings User can set vibration, message alerts, server, updates, etc. The server setting here must keep the same as the server setting in "Configuration"...
  • Page 50 Service Manual 6.5 Brief Description of Modes and Functions Indoor Unit ● 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 16~30 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status.
  • Page 51 Service Manual (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Entry condition for compulsory defrosting function When turn on the unit under heating ode and set temperature is 16 C (or 16.5 C by remote controller), press “+, -, +, -, +, -”...
  • Page 52 Service Manual Outdoor Unit ● 1. Cooling mode: Working condition and process of cooling mode: ① When Tindoor ambient temperature≥Tpreset, unit enters into cooling mode. Indoor fan, outdoor fan and compressor start operation. Indoor fan operates according to set fan speed. ②...
  • Page 53 Service Manual 7. Auto mode Auto mode is determined by controller of IDU. See IDU logic for details. 8. 8 C heating Set temperature is 8 C. Display board of IDU displays 8 C. Under this mode, “Cold air prevention” function is shielded. If compressor is operating under this mode, fan speed will adjust according to auto fan speed;...
  • Page 54 Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
  • Page 55 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.
  • Page 56 Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall At least 15cm At least 15cm Space to the wall Drainage pipe Installation and Maintenance...
  • Page 57 Service Manual 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 58 Service Manual 8.4 Electric Connection Requirement 8.2 Installation Parts-checking 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor Connection pipe power supply circuit and air switch.
  • Page 59 Service Manual in the holes. 4. Outlet Pipe (3) Fix the wall-mounting frame on the wall with tapping screws (1) The pipe can be led out in the direction of right, rear right, (ST4.2X25TA) and then check if the frame is firmly installed by left or rear left.(As show in Fig.3) pulling the frame.
  • Page 60 Service Manual (4) Put wiring cover back and then tighten the screw. Drain hose (5) Close the panel. Outlet pipe Note: (1) All wires of indoor unit and outdoor unit should be Tape connected by a professional. Drain hose Outlet Fig.9 pipe (2) If the length of power connection wire is insufficient, please...
  • Page 61 Service Manual 4. Connect Indoor and Outdoor Pipes Outdoor Indoor Fig.17 (1) Remove the screw on the right handle of outdoor unit and Wall pipe Sealing gum then remove the handle.(As show in Fig.21) Upper hook (2) Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe.(As show in Fig.22) Liquid pipe Pipe joint...
  • Page 62 Service Manual 2. Leakage Detection (1) With leakage detector: The drain hos can't raise Check if there is leakage with leakage detector. upwards (2) With soap water: Wall If leakage detector is not available, please use soap water for leakage detection. Apply soap water at the suspected position and keep the soap water for more than 3min.
  • Page 63 Service Manual 9. Maintenance 9.1 Error Code List Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s)
  • Page 64 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 65 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 66 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 67 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 68 Service Manual Display Method of Outdoor Display Method of Indoor Unit Unit Indicator has 3 kinds of Indicator Display (during display status and during Malfunction blinking, ON 0.5s and OFF Dual-8 A/C status Possible Causes blinking, ON 0.5s and OFF Name 0.5s) Code...
  • Page 69 Service Manual If malfunction occurs,corresponding code will display and the unit will resume normal until protection or malfunction disappears. Installation and Maintenance...
  • Page 70 Service Manual Analysis or processing of some of the malfunction display: 1. Compressor discharge protection Possible causes: shortage of refrigerant; blockage of air filter; poor ventilation or air flow short pass for condenser; the system has noncondensing gas (such as air, water etc.); blockage of capillary assy (including filter); leakage inside four-way valve causes incorrect operation;...
  • Page 71 Service Manual 9.2 Procedure of Troubleshooting Indoor unit (1) Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
  • Page 72 Service Manual (2) Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor cant operate? ●...
  • Page 73 Service Manual (3) Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
  • Page 74 Service Manual (4) Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: ● Instant energization afte de-energization while the capacitordischarges slowly? ● The zero-cross detectioncircuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Turn power off for 1minute,the turn...
  • Page 75 Service Manual (5) Malfunction of detecting plate(WIFI) JF Start check if the connection wire are correctly connected detecting Replace the plate with the same model Is malfunction eliminated Replace the mainboard with the same model The end Installation and Maintenance...
  • Page 76 Service Manual Outdoor unit: (1) Capacitor charge fault (Fault with outdoor unit) (AP1 below refers to the outdoor control panel) Main Check Points: ●Use AC voltmeter to check if the voltage between terminal L and N on the wiring board is within 210VAC~240VAC. ●Is the reactor (L) correctly connected? Is the connection loose or fallen? Is the reactor (L) damaged? Fault diagnosis process: Turn on the unit...
  • Page 77 Service Manual (2) IPM Protection, Out-of-step Fault, Compressor Phase Overcurrent (AP1 below refers to the outdoor control panel) Main check points: ●Is the connection between control panel AP1 and compressor COMP secure? Loose? Is the connection in correct order? ●Is the voltage input of the machine within normal range? (Use AC voltmeter to measure the voltage between terminal L and N on the wiring board XT) ●Is the compressor coil resistance normal? Is the insulation of compressor coil against the copper tube in good condition? ●Is the working load of the machine too high? Is the radiation good?
  • Page 78 Service Manual Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring machine has run for terminal L and N restore it to board XT is within a period of time?
  • Page 79 Service Manual (3) High temperature and overload protection diagnosis (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is outdoor ambient temperature in normal range? ●Are the outdoor and indoor fans operating normally? ●Is the heat dissipation environment inside and outside the unit good? Fault diagnosis process: Overheat and high temperature protection...
  • Page 80 Service Manual (4) Start-up failure (following AP1 for outdoor unit control board) Mainly detect: ●Whether the compressor wiring is connected correct? ●Is compressor broken? ●Is time for compressor stopping enough? Fault diagnosis process: Power on the unit Restart it up after Is stop time of the compressor 3 minutes longer than 3 minutes?
  • Page 81 Service Manual (5) Out of step diagnosis for the compressor (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Is the system pressure too high? ●Is the input voltage too low? Fault diagnosis process: Out of step occurs in Out of step occurs once the operation unit is powered on.
  • Page 82 Service Manual (6) Overload and air exhaust malfunction diagnosis (following AP1 for outdoor unit control board) Mainly detect: ●Is the PMV connected well or not? Is PMV damaged? ●Is refrigerant leaked? Fault diagnosis process: 20 minutes after the complete unit is powered off Is the terminal FA for the Connect the...
  • Page 83 Service Manual (7) Power factor correct or (PFC) fault (a fault of outdoor unit) (AP1 hereinafter refers to the control board of the outdoor unit) Mainly detect: ●Check if the reactor (L) of the outdoor unit and the PFC capacitor are broken Fault diagnosis process: Start Check wiring of the...
  • Page 84 Service Manual (8) Communication malfunction: (following AP1 for outdoor unit control board) Mainly detect: ●Is there any damage for the indoor unit mainboard communication circuit? Is communication circuit damaged? ●Detect the indoor and outdoor units connection wire and indoor and outdoor units inside wiring is connect well or not, if is there any damage? Fault diagnosis process: Start...
  • Page 85 Service Manual (9) Malfunction of Overcurrent Protection Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
  • Page 86 Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Cant 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 After energization, operation indicator isnt bright wait for power recovery.
  • Page 87 Service Manual 4. ODU Fan Motor Cant Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...
  • Page 88 Service Manual 10. Exploded View and Parts List 10.1 Indoor Unit MODE ON/OFF SWING TIMER ON CLOCK TIMER OFF TURBO TEMP SLEEP IFEEL X-FAN The component picture is only for reference please refer to the actual product. Installation and Maintenance...
  • Page 89 Service Manual Part Code Description GWH09QB-K3DNA1G/I(WIFI) GWH12QC-K3DNA1G/I(WIFI) Product Code CB419N05503 CB419N05403 Front Panel Assy 20022493 20022493 Display Board 30565231 30565231 Front Case Assy 20022489 20022489 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093 00000100093 Drainage Hose 05230014 05230014 Ring of Bearing...
  • Page 90 Service Manual Part Code Description GWH09QB-K3DNB6G/I GWH12QC-K3DNB6G/I Product Code CB435N00404 CB435N00103 Front Panel Assy 20000300050T 20000300049T Display Board 30565281 30565281 Front Case Assy 00000200040 00000200045 Helicoid Tongue 26112508 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 20162010 00000100093 Drainage Hose 0523001408 05230014 Ring of Bearing...
  • Page 91 Service Manual Part Code Description GWH09QB-K3DNA5G/I)(WIFI) GWH12QC-K3DNA5G/I(WIFI) Product Code CB425N03503 CB425N03603 Front Panel Assy 00000300036 00000300022 Display Board 30565260 30565260 Front Case Assy 2002249501 00000200022 Helicoid Tongue 26112508 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 20162010 00000100093 Drainage Hose 0523001408 05230014 Ring of Bearing...
  • Page 92 Service Manual Part Code Description GWH09QB-K3DNB4G/I(WIFI) GWH09QB-K3DNC2G/I(WIFI) Product Code CB434N02304 CB439N00402 Front Panel Assy 00000200040 00000200040 Display Board 30565260 30565281 Front Case Assy 00000200040 00000200040 Helicoid Tongue 26112508 26112508 Left Axile Bush 10512037 10512037 Rear Case assy 20162010 20162010 Drainage Hose...
  • Page 93 Service Manual Part Code Description GWH09QB-K3DNC4G/I(WIFI) GWH09QB-K3DNB2G/I(WIFI) Product Code CB444N01202 CB432N02204 1 Front Panel Assy 00000200040 20000300019S 2 Display Board 30565260 30565260 3 Front Case Assy 00000200040 00000200040 4 Helicoid Tongue 26112508 26112508 5 Left Axile Bush 10512037 10512037 6 Rear Case assy 20162010 20162010 7 Drainage Hose...
  • Page 94 Service Manual Part Code Description GWH12QC-K3DNB4G/I(WIFI) GWH12QC-K3DNC2G/I(WIFI) Product Code CB434N02103 CB439N00100 1 Front Panel Assy 00000200045 00000200045 2 Display Board 30565260 30565281 3 Front Case Assy 00000200045 00000200045 4 Helicoid Tongue 26112436 26112436 5 Left Axile Bush 10512037 10512037 6 Rear Case assy 00000100093 00000100093 7 Drainage Hose...
  • Page 95 Service Manual Part Code Description GWH12QC-K3DNB2G/I(WIFI) GWH12QC-K3DNC4G/I(WIFI) Product Code CB432N02103 CB444N01302 Front Panel Assy 20000300018S 20000300019S Display Board 30565260 30565260 Front Case Assy 00000200045 00000200045 Helicoid Tongue 26112436 26112436 Left Axile Bush 10512037 10512037 Rear Case assy 00000100093 00000100093 Drainage Hose 05230014 05230014 Ring of Bearing...
  • Page 96 Service Manual 10.2 Outdoor Unit The component picture is only for reference please refer to the actual product. Installation and Maintenance...
  • Page 97 Service Manual Part Code Description GWH09QB-K3DNA1G/O GWH12QC-K3DNA1G/O Product Code CB419W05501 CB419W05401 Electric Box Assy 10000100118 10000100120 Electric Box Sub-Assy 10000500049 10000500051 Main Board 30138000453 30138000456 Reactor 43130184 43130184 Terminal Board 42010313 42010313 Wire Clamp 71010003 71010003 Front Grill 22413027 22413027 Front Panel Assy 0153304802 0153304802...
  • Page 98 Service Manual 11. Removal Procedure Caution: discharge the refrigerant completely before removal. 11.1 Removal Procedure of Indoor Unit Procedure Step 1. Remove filter assembly Front panel Open the front panel. Push the left filter and right filter until they are separate from the groove on the front panel.
  • Page 99 Service Manual Procedure Step 4. Remove electric box cover 2 and detecting plate(WIFI) Electric box cover 2 Remove the screws on the electric box Screw cover 2 and detecting plate(WIFI), then remove the electric box cover 2 and detecting plate(WIFI). Screws Note: The position of detection board（WIFI）...
  • Page 100 Service Manual Step Procedure 7. Remove electric box assy Screw Loosen the connection clasps between shield cover of electric box sub-assy and Clasps electric box, and then remove the shield cover of electric box sub-assy. Remove the screw fixing electric box assy . Electric box Shield cover of electric box sub-assy...
  • Page 101 Service Manual Step Procedure Instruction: Some wiring terminal of this product is with lock catch and other devices. circlip The pulling method is as below: holder 1.Remove the soft sheath for some terminals at first, hold the circlip and then pull out the terminals.
  • Page 102 Service Manual Step Procedure 9. Remove motor and cross flow blade Remove the screws fixing motor clamp Screws and then remove the motor clamp. Motor clamp Cross flow Remove the screws at the connection Screw Motor place of cross flow blade and motor; lift Holder the motor and cross flow blade upwards sub-assy...
  • Page 103 Service Manual 11.2 Removal Procedure of Outdoor Unit Step Procedure 1. Remove big handle Right side plate Remove the screw fixing big handle; slide out the big handle upwards to make the clasp of big handle separate from the groove of right side plate, and then remove the big handle.
  • Page 104 Service Manual Step Procedure 4. Remove the front cover Screws Screw off the screws that are locking the front cover. Then take it off. Screws Screws Front cover Screws 5. Remove axial flow blade Remove the nut fixing axial flow blade and then remove the axial flow blade.
  • Page 105 Service Manual Step Procedure 6. Remove protective grille and right side plate Remove the screws 1 fixing protective grille and then remove the protective Protective grille. grille Screws 2 Screws 1 Right side plate Right side plate Remove the screws 2 fixing right side plate and then remove the right side plate.
  • Page 106 Service Manual Step Procedure 8. Remove 4-way valve assy Unsolder the spot weld of 4-way valve assy, compressor and condenser, and then remove the 4-way valve assy . 4-way valve assy Note: When unsoldering the spot weld, wrap the 4-way valve with wet cloth completely to avoid damaging the valve due to high temperature.
  • Page 107 Service Manual Step Procedure 11. Remove gas valve and liquid valve Remove two screws fixing the gas valve, then remove the gas valve. Remove two screws fixing the liquid valve, then remove the liquid valve. Liquid valve Screws Gas valve Screws 12.
  • Page 108 Service Manual Step Procedure 16. Remove compressor Remove 3 foot nuts on compressor, and then remove the compressor. Note: Protect the ports of discharge pipe and suction pipe to avoid foreign objects to enter it. Compressor Foot nuts 17. Remove condenser Remove one screw fixing the condenser, then remove the condenser.
  • Page 109 Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉）...
  • Page 110 Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...
  • Page 111 Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor (15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009...
  • Page 112 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2...
  • Page 113 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor (50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08...
  • Page 114 GREE ELECTRIC APPLIANCES,INC.OF ZHUHAI Add: West Jinji Rd, Qianshan, Zhuhai, Guangdong, China 519070 Tel: (+86-756) 8522218 Fax: (+86-756) 8669426 Email: gree@gree.com.cn Http://www.gree.com HONG KONG GREE ELECTRIC APPLIANCES SALES LIMITED Add: Unit 2612,26/F.,Miramar Tower 132 Nathan Road,TST,Kowloon,HK Tel: (852) 31658898 Fax: (852) 31651029...

This manual is also suitable for:

Gwh09qb-k3dna5gGwh09qb-k3dnb2gGwh09qb-k3dnb4gGwh09qb-k3dnb6gGwh09qb-k3dna1gGwh09qb-k3dnc4g ... Show all

Table of Contents