Gree GWH12YD-S6DBA1A Page 4 Service Manual Download

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Technical Information

Service Manual

1. Summary

Indoor Unit:

Part

Ⅰ

: Technical Information

GWH12YD-S6DBA1A/I

GWH12YD-S6DBA2A/I

Outdoor Unit:

Remote Controller:

YAG1FB3(WiFi)

GWH12YD-S6DBA2A/O

Model List:

Model

Product code

Indoor model

Indoor product code

Outdoor model

Outdoor product code

1 GWH12YD-S6DBA1A CB437003001 GWH12YD-S6DBA1A/I

CB437N03001

GWH12YD-S6DBA2A/O

CB466W00200

2 GWH12YD-S6DBA2A CB466000204 GWH12YD-S6DBA2A/I

CB466N00204

Summary of Contents for GWH12YD-S6DBA1A

Page 1: ...Service Manual Change for life GREE ELECTRIC APPLIANCES INC OF ZHUHAI Models GWH12YD S6DBA1A GWH12YD S6DBA2A Refrigerant R32...

Page 2: ...ing Diagram 9 5 2 PCB Printed Diagram 11 6 Function and Control 13 6 1 Remote Controller Introduction 13 6 2 GREE App Operation Manual 18 6 3 Ewpe Smart App Operation Manual 19 Part Installation and M...

Page 3: ...10 1 Indoor Unit 54 10 2 Outdoor Unit 56 11 Removal Procedure 58 11 1 Removal Procedure of Indoor Unit 58 11 2 Removal Procedure of Outdoor Unit 63 Appendix 68 Appendix 1 Reference Sheet of Celsius a...

Page 4: ...A2A I Outdoor Unit Remote Controller YAG1FB3 WiFi GWH12YD S6DBA2A O Model List No Model Product code Indoor model Indoor product code Outdoor model Outdoor product code 1 GWH12YD S6DBA1A CB437003001 G...

Page 5: ...BA2A I Indoor Unit Product Code CB437N03001 CB466N00204 Fan Type Cross flow Diameter Length DXL mm 106X706 Fan Motor Cooling Speed r min 1200 1100 1030 960 890 820 750 500 Fan Motor Heating Speed r mi...

Page 6: ...tor F Air Flow Volume of Outdoor Unit m3 h 2400 Fan Type Axial flow Fan Diameter mm 438 Defrosting Method Automatic Defrosting Climate Type T1 Isolation I Moisture Protection IPX4 Permissible Excessiv...

Page 7: ...ion Indoor DB 20 C Indoor air flow Super High Pipe length 5m Compressor Frequency Hz Compressor Frequency Hz Current A Current A 2 3 Capacity Variation Ratio According to Temperature Cooling Heating C...

Page 8: ...cting indoor and outdoor unit Inlet and outlet pipe temperature of heat exchanger Fan speed of indoor unit Fan speed of outdoor unit Indoor Outdoor P MPa T1 C T2 C 20 7 6 12K 2 8 to 3 0 70 to 35 2 to...

Page 9: ...6 Technical Information Service Manual 3 Outline Dimension Diagram 3 1 Indoor Unit Unit mm Model W H D 12K 996 301 225 W D H 117 685 194 140 190 38 55 55 38...

Page 10: ...7 Technical Information Service Manual 3 2 Outdoor Unit Unit mm 596 354 899 303 838 378 550...

Page 11: ...LRQ 5HIULJHUDQW 6 VWHP LDJUDP RQQHFWLRQ SLSH VSHFL FDWLRQ LTXLG PP DV PP RU 7 LTXLG PP DV PP RU 7 INDOOR UNIT OUTDOOR UNIT HEAT EXCHANGE EVAPORATOR HEAT EXCHANGE CONDENSER COMPRESSOR GAS SIDE 3 WAY VA...

Page 12: ...tal lover for this model 60000700033807 3OHDVH GRQ W WRXFK DQ HOHFWURQLF FRPSRQHQW RU WHUPLQDO ZKHQ WKH PDFKLQH LV UXQQLQJ VWRSSLQJ RU KDV EHHQ SRZHUHG RII IRU OHVV WKDQ PLQXWHV WR SUHYHQW HOHFWULF VK...

Page 13: ...625 2875220 28778 7 03 6 1625 2 1 3 0 57 57 57 7B6 1625 9 9 9 97 97 B 1 3 3 3 7 5 27720 7 5 1 5 6 1625 7 03 6 1625 28778 57 LURQ VKHOO PRWRU RQO DSSOLHV WR WKH 1RWH 0RWRU JURXQG KLWH 9 9 9 3 16 21 752...

Page 14: ...ce 4 up down swing motor 5 left right swing motor 6 Interface of temperature sensor 7 Terminal for display board connection 8 Terminal of jumper cap 9 Communication wire 10 Detecting plate WIFI 11 Gro...

Page 15: ...lve 1 5 Terminal of electronic expansion valve 2 6 Low temperature cooling sensor 7 Terminal of outdoor fan 8 Terminal of chassis electric heater 9 Terminal of 2 way valve 10 Terminal of 4 way valve 1...

Page 16: ...ght Temp display type Set temp Outdoor ambient temp Indoor ambient temp Sleep mode Clock Heat mode Fan mode Dry mode Cool mode Auto mode Operation mode I feel Healthy mode Scavenging functions Quiet T...

Page 17: ...set X FAN function on After turning off the unit by pressing ON OFF button indoor fan will continue running for a few minutes at low speed In this period Hold fan speed button for 2s to stop indoor fa...

Page 18: ...2 the unit will run at this setting temperature In Heat mode sleep status after run for one hour the setting temperature will decrease 1 2 hours setting temperature will decrease 2 then the unit will...

Page 19: ...is selected the unit will be in accordance with the room temp automatically to select the suitable running method and to make ambient comfortable About turbo function If start this function the unit w...

Page 20: ...n 1 Press the back side of remote controller marked the cover of battery box along the arrow direction 2 Replace two 7 AAA 1 5V dry batteries and make sure the position of polar and polar are correct...

Page 21: ...l 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 For more information please refer to Help in App...

Page 22: ...App is installed register the account and add the device to achieve long distance control and LAN control of smart home appliances For more information please refer to Help in App 6 3 Ewpe Smart App O...

Page 23: ...e unit adequately grounded The grounding wire cant be used for other purposes 6 Must apply protective accessories such as protective boards cable cross loop and wire clip 7 The live wire neutral wire...

Page 24: ...y be leaked corrosive gas or flammable gas If there leaked gas around the unit it may cause explosion and other accidents 7 Do not use extension cords for electrical connections If the electric wire i...

Page 25: ...area The naked flame is prohibited in the maintenance area and the no smoking warning board should be hanged Check whether the appliance mark is in good condition Replace the vague or damaged warning...

Page 26: ...ng tape 4 Electroprobe 7 Electronic leakage detector 10 Pipe pliers pipe cutter 2 Screw driver 5 Universal meter 8 Vacuum pump 11 Pipe expander pipe bender 3 Impact drill drill head electric drill 6 T...

Page 27: ...east 5 7 8 At least 5 7 8 At least 98 7 16 Space to the wall S p a c e t o t h e o b s t r u c t i o n Space to the floor Space to the obstruction Drainage pipe Space to the wall Space to the obstruct...

Page 28: ...or unit Make the bound pipes pass through the wall hole and then connect outdoor unit Neaten the pipes Vacuum pumping and leakage detection Check after installation and test operation Finish installat...

Page 29: ...ment 1 The air conditioner is first class electric appliance It must be properly grounding with specialized grounding device by a professional Please make sure it is always grounded effectively otherw...

Page 30: ...g 2 Note Insulating pipe Torque wrench Open end wrench Indoor pipe Pipe Union nut Union nut Pipe joint Pipe Hex nut diameter mm Tightening torque N m 6 15 20 9 52 30 40 12 45 55 16 60 65 19 70 75 Refe...

Page 31: ...wire to the wiring terminal according to the color tighten the screw and then fix them with wire clip As show in Fig 13 Note Fig 11 Fig 12 Fig 13 Fig 14 Fig 15 Wiring cover Screw Panel Do not bend th...

Page 32: ...crew on the handle and valve cover of outdoor unit and then remove the handle and valve cover As show in Fig 21 2 Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe As show...

Page 33: ...onnect the other charging hose to the vacuum pump 3 Open the piezometer completely and operate for 10 15min to check if the pressure of piezometer remains in 0 1MPa 4 Close the vacuum pump and maintai...

Page 34: ...rotection E5 During cooling and drying operation compressor and outdoor fan stop while indoor fan operates During heating operation all loads stop 1 Supply voltage is unstable 2 Supply voltage is too...

Page 35: ...nt temperature sensor is open short circuited F3 During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation Outdoor t...

Page 36: ...ltage is higher than 265VAC turn on the unit after the supply voltage is increased to the normal range 2 If the AC input is normal measure the voltage of electrolytic capacitor C on control panel AP1...

Page 37: ...sor circuit P7 During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop Replace outdoor control panel AP1 30 Module h...

Page 38: ...Bad contact of DC motor control end 3 Fan motor is stalling 4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit 37 Desynchro nizing of compressor H7 During cooling and drying operatio...

Page 39: ...Malfunction of complete units current detection U5 During cooling and drying operation the compressor will stop while indoor fan will operate During heating operating the complete unit will stop oper...

Page 40: ...3S and blink once during blinking ON 10s and OFF 0 5s Defrosting will occur in heating mode Compressor will operate while indoor fan will stop The complete unit stops During cooling and drying operati...

Page 41: ...oken Malfunction diagnosis process Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted Start Insert the temperature sensor tightly Yes Yes Yes Yes Yes...

Page 42: ...indoor fan and main board is loose Turn unit on to check whether the malfunction is eliminated Turn unit on to check whether the malfunction is eliminated Reinsert the wiring terminal of indoor fan I...

Page 43: ...the mainboard is defined abnormal Malfunction diagnosis process Start Is there jumper cap on the mainboard Is the jumper cap inserted correctly and tightly Replace the jumper cap with the same model...

Page 44: ...the compressor Replace the mainboard with the same model End Is the supply voltage too low with overload Is the indoor outdoor heat exchanger dirty or are the air inlet and outlet blocked The fan is...

Page 45: ...board matches with display board Main board of IDU matches with that of ODU Communication cord is damaged Replace IDU s main board Malfunction eliminated End Connect the line according to wiring diag...

Page 46: ...harges slowly The zero cross detectioncircuit of the mainboard is defined abnormal Malfunction diagnosis process Turn power off for 1minute the turn back on The unit returns to normal Conclusion U8 is...

Page 47: ...of detecting plate WIFI JF Start Is malfunction eliminated The end check if the connection wire are correctly connected Replace the detecting plate with the same model Replace the mainboard with the s...

Page 48: ...e higher than 200V Malfunction of the outdoor mainboard AP1 Replace outdoor mainboard Measure the voltage input with AC voltmeter see fig 30 Voltage within 180VAC 260VAC Shut down the power and wait 2...

Page 49: ...resume to the range of 210VAC 250VAC Correctly connect the wires of compressor according to the electric wiring diagram and then turn on the unit Check the connection between the control board and the...

Page 50: ...E8 is displayed If the outdoor ambient temperature is higher than 53 Normal protection please use it after improving the outdoor ambient temperature Unit restarts normally Unit restarts normally If th...

Page 51: ...cient and the high and low pressure of system is not balanced please start the unit after 3min If the compressor wire COMP UVW is well connected and connection sequence is correct Check the connection...

Page 52: ...valve damaged If the refrigerant is leaked The compressor overload protection terminal is not connected well with the mainboard If the overload protector is damaged Heat exchange of unit is not good...

Page 53: ...nual Compressor overload protection terminal is not connected well with the mainboard reconnect them correctly Heat exchange of unit is not good heat exchanger is dirty and unit radiating environment...

Page 54: ...before malfunction Check built in wiring of indoor and outdoor unit If the wiring is damaged Replace the wire Check the malfunction type with communication malfunction detector Malfunction of outdoor...

Page 55: ...d for details Malfunction of compressor Compressor cant operate Refer to point 5 of maintenance method for details 9 3 Maintenance Method for Normal Malfunction 1 Air Conditioner Cant be Started Up 2...

Page 56: ...pipe Replace drain pipe Wrapping is not tight Water leaking from the pipe connection place of indoor unit Wrap it again and bundle it tightly 5 Compressor Cant Operate Possible causes Discriminating m...

Page 57: ...54 Installation and Maintenance Service Manual 10 Exploded View and Parts List 10 1 Indoor Unit The component picture is only for reference please refer to the actual product...

Page 58: ...8 Motor Press Plate 26112511 26112511 1 19 Fan Motor 15012136 15012136 1 20 Connecting pipe clamp 2611218801 2611218801 1 21 Drainage Hose 05230014 05230014 1 22 Stepping Motor 1521240212 1521240212 1...

Page 59: ...56 Installation and Maintenance Service Manual The component picture is only for reference please refer to the actual product 10 2 Outdoor Unit...

Page 60: ...11 1 5 Clapboard Sub Assy 01235094 1 6 Left Side Plate 01303169P 1 7 Valve Cover 22243005 1 8 Main Board 300027000056 1 9 Electric Box Assy 100002000997 2 10 Coping 01253034P 1 11 Rear Grill 01475022...

Page 61: ...oval Step Procedure 2 Remove horizontal louver Open the panel Panel Axile bush Location of step motor Horizontal louver Loosen the clasp shown and outwards to remove them Push out the axile bush on ho...

Page 62: ...the display board from the front panel Open the front panel separate the panel front panel and then removes the front panel Remove the screws on the electric box cover to remove the electric box cover...

Page 63: ...e indoor tube temperature sensor from the evaporator Remove the screws at the connection place between grounding wire and evaporator Loosen the connection clasps between shield cover of electric box s...

Page 64: ...w Screw Electric box assy Connection pipe clamp Evaporator assy Connection pipe assy and then remove the electric box assy At the back of the unit remove the and then remove the connection pipe clamp...

Page 65: ...and Maintenance Service Manual Step Procedure Motor clamp and then remove the motor clamp Remove the screws at the connection to remove them Remove the bearing holder sub assy a b c Screws Holder sub...

Page 66: ...y 2 Remove top cover top cover Remove handle and valve cover 3 Remove the screws connecting top cover left and right side plate as well as panel to remove the top cover handle Twist off the screws use...

Page 67: ...cross fan blade Remove the screws fixing panel to remove the panel Remove the screws connecting panel grille and panel loosen the clamp to remove the panel grille 5 Remove the screw nut fixing cross...

Page 68: ...valve support to remove the right side plate 6 7 Remove motor Remove motor support Remove the two tapping screws fixing motor support and chassis lift to remove the motor support Remove the four tappi...

Page 69: ...box assy electric box assy electric boxcover four way valve ass electron expansion valve y Unsolder the spot weld of discharge and inhalation tube sub assy electronic expansion valve compressor and c...

Page 70: ...eet screw nuts fixing compresso to remove the compressor compressor 13 Remove big and small valve assy condenser assy small valve big valve Remove screws connecting condenser assy and chassis to remov...

Page 71: ...connection pipeFor the unit with standard connection pipe of 5m there is no limitation for themin length of connection pipe For the unit with standard connection pipe of 7 5m and 8m the min length of...

Page 72: ...llowing steps A Cut the pip Confirm the pipe length according to the distance of indoor unit and outdoor unit Cut the required pipe with pipe cutter B Remove the burrs Remove the burrs with shaper and...

Page 73: ...88 33 10 63 72 2 439 111 0 737 5 63 46 34 10 2 73 2 358 112 0 717 4 60 23 35 9 779 74 2 28 113 0 697 3 57 18 36 9 382 75 2 206 114 0 678 2 54 31 37 9 003 76 2 133 115 0 66 1 51 59 38 8 642 77 2 064 1...

Page 74: ...983 5 84 61 34 13 59 73 3 144 112 0 956 4 80 31 35 13 04 74 3 04 113 0 93 3 76 24 36 12 51 75 2 94 114 0 904 2 72 41 37 12 76 2 844 115 0 88 1 68 79 38 11 52 77 2 752 116 0 856 0 65 37 39 11 06 78 2 6...

Page 75: ...62 11 32 101 3 22 15 362 9 24 51 41 63 10 93 102 3 13 14 342 8 25 49 19 64 10 54 103 3 04 13 323 9 26 47 08 65 10 18 104 2 96 12 306 2 27 45 07 66 9 83 105 2 87 11 289 6 28 43 16 67 9 49 106 2 79 10 2...

Page 76: ...6 756 8669426 E mail gree gree com cn 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 Fo...

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