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Service Manual

9.2 Procedure of Troubleshooting

1. M a lfu n c tio n o f T e m p e ratu re S e n s o r F1, F2

Main detection points:

• Is the wiring terminal between the tem perature sensor and the controller loosened or poorly contacted?

• Is there short circuit due to trip-over of the parts?

• Is the tem perature sensor broken?

• Is mainboard broken?

Malfunction diagnosis process:

Start

Yes

Installation and Maintenance

Содержание GWH18YE-S6DBA2A/I

Страница 1: ...Service Manual Models GWH18YE S6DBA2A GWH24YE S6DBA2A RefrigerantR32 GREE ELECTRIC APPLIANCES INC OF ZHUHAI ...

Страница 2: ...on and Control 14 6 1 Remote Controller Introduction 14 6 2 Operation of Smart Control Smart Phone Tablet PC For G ree 19 6 3 Operation of Smart Control Smart Phone Tablet PC 33 6 4 Brief Description of Modes and Functions 46 Part II Installation and Maintenance 51 7 Notes for Installation and Maintenance 51 8 Installation 55 8 1 Installation Dimension Diagram 55 8 2 Installation Parts checking 57...

Страница 3: ...1 Indoor Unit 85 10 2 Outdoor U nit 87 11 Removal Procedure 89 11 1 Removal Procedure of Indoor U nit 89 11 2 Removal Procedure of Outdoor U n it 94 Appendix io o Appendix 1 Reference Sheet of Celsius and Fahrenheit 100 Appendix 2 Configuration of Connection Pipe 100 Appendix 3 Pipe Expanding M ethod 101 Appendix 4 List of Resistance for Temperature Sensor 102 Table of Contents ...

Страница 4: ...Service Manual Part I Technical Information 1 Summary Indoor Unit GWH18YE S6DBA2A I GWH24YE S6DBA2A I O utdoor Unit GWH18YE S6DBA2A O GWH24YE S6DBA2A O Remote C ontroller YAG1FB Technical Information 1 ...

Страница 5: ... flow Diameter Length DXL mm 0108X830 0106X890 Fan Motor Cooling Speed r min 1200 1150 1100 1000 900 850 800 600 1250 1100 1000 950 900 850 800 600 Fan Motor Heating Speed r min 1250 1150 1100 1000 900 850 800 1400 1250 1100 1050 1000 900 850 Output of Fan Motor W 60 70 Fan Motor RLA A 0 24 0 38 Fan Motor Capacitor pF Input of Heater W Evaporator Form Aluminum Fin copper Tube Aluminum Fin copper T...

Страница 6: ...pacitor pF Air Flow Volume of Outdoor Unit m3 h 4000 4000 Fan Type Axial flow Axial flow Fan Diameter mm 0550 0550 Defrosting Method Automatic Defrosting Automatic Defrosting Climate Type T1 T1 Isolation I I Moisture Protection IPX4 IPX4 Permissible Excessive Operating MPa 4 3 4 3 Pressure for the Discharge Side Permissible Excessive Operating MPa 2 5 2 5 Pressure for the Suction Side Sound Pressu...

Страница 7: ... Compressor Frequency Hz 2 3 Capacity Variation Ratio According to Temperature C ooling Heating 110 100 90 IS 80 o T O S _ Ô S 70 r e 60 50 21 23 25 27 29 31 33 35 37 39 41 43 4547 49 51 53 Outdoor temp C X Condition Indoor DB 27 C WB19 C Indoor air flow Super High Pipe length 5 or 7 5m Outdoor temp C 4 0 Technical Information ...

Страница 8: ...connecting indoor and outdoor unit Inlet and outlet pipe temperature of heat exchanger Fan speed of indoor unit Fan speed of outdoor unit Compressor frequency Hz Indoor Outdoor P MPa T1 C T2 C 20 7 6 18K 2 8 to 3 0 70 to 35 2 to 4 Super High High 65 20 7 6 24K 2 8 to 3 0 70 to 35 2 to 4 Super High High 77 Instruction T1 Inlet and outlet pipe temperature of evaporator T2 Inlet and outlet pipe tempe...

Страница 9: ...Service Manual 3 Outline Dimension Diagram 3 1 indoor Unit W 218 685 198 Unit mm Model W H D 18 24K 1101 327 249 6 0 Technical Information ...

Страница 10: ...Service Manual Technical Information 7 ...

Страница 11: ...Service Manual 4 Refrigerant System Diagram INDOOR UNIT OUTDOOR UNIT Connection pipe specification Liquid pipe 1 4 6mm Gas pipe 5 8 16mm 0 Technical Information ...

Страница 12: ...R DISPLAY BOARD i n OPTIONAL WIFI MODULE в RT1 в RT2 AP1 AP4 J з s a Е Й T SENSOR DISP1 DISP2 COM MANUAL WIFI CAP JUMP AP2 MAIN BOARD DC MOTOR SWING UD M1 SWING LR N COM OUT AC L PE HEALTH L HEALTH N 5 i LJ LJ UP DOWN LEFT RIGHT STEPPING STEPPING MOTOR MOTOR T V RD T V ви COLD PLASMA GENERATOR A warning Please don t touch any electronic component or terminal when the machine is running stopping or...

Страница 13: ...age o f term inal P DC and N DC a t AP1 is higher than 30V to prevent the ris k o f e le c tric shock C O z LU UJ C ÛC O O C O o Q C L C O z I U J C OC O Û I s X U J C O C Nz UJ UJ CÛ CO CO M P PE RT2 RT3 k k 15K 50K BK T_SENS0R COM INNER RT4f m W H 3 g g g g U BU V YE W RD SENS0R2 CN12 0VC_C0MP AP1 PRINTED CIRCUIT BOARD 4WAY FA Red FA2 White 600007000800 FAN MOTOR y P E Note Motor ground only a p...

Страница 14: ...rminal of jumper cap 9 Communication wire 10 Connect earthing wire only for the mode with this function 11 Fuse 12 Live wire interface 13 Interface of health function neutral wire 14 Interface of health function live wire 15 Detecting plate WIFI 16 Connect earthing wire only for the mode with this function 17 W ired controller only for the mode with this function 18 Interface of gate control only ...

Страница 15: ...emperature sensor 5 Terminal of outdoor fan 6 Terminal of 4 way valve 7 C o m m u n ica tio n w ire with indoor unit 8 Power supply live wire 9 Earthing wire 10 Power supply neutral wire 11 PFC induction wire lO c Q 10 Bottom view o 1 o n u u I I I I I I I Ö f f l M M im eu b I lu Mil Q o o o R S 3 1 T j É 0 n n T n _m J C P n n f i S ____I q O J D 7 12 0 Technical Information ...

Страница 16: ...ra tu re co o lin g sensor 5 Cooling A valve 6 Cooling B valve 7 Interface of outdoor motor 8 Interface of 2 way valve 9 Interface of 4 way valve 10 Terminal of chassis electric heating 11 C om m u n ica tio n w ire w ith indoor unit 12 Live wire interface of power cord 13 Earthing wire interface of cold plasma 14 Neutral wire interface of power cord Bottom view Technical Information 13 ...

Страница 17: ...t temp Temp display type Child lock Up down swing Left right swing 0 Outdoor ambient temp Q Indoor ambient temp i Introduction for Buttons on Remote Controller Note After putting through the power the air conditioner will give out a sound Operation indictor is ON red indicator After that you can operate the air conditioner by using remote controller Under on status pressing the button on the remot...

Страница 18: ...speed 6 777 button Press this button to set left right swing angle cycling as below i s r i off 7 1 button Press this button to set swing angle which circularly changes as below 1 I OFF 1 This remote controller is universal If it receives threes kinds of following status the swing angle will remain origial If guide louver is stopped when it is swinging up and down it will remain its present positi...

Страница 19: ...ehumidify modes sleep status after run for one hour the main unit setting temp erature will increase 1 C 1 F 2 F 2 hours setting temperature increased 2 C 3 F 4 F the unit will run at this setting temperature In Heat mode sleep status after run for one hour the setting temperature will decrease 1 C 1 F 2 F 2 hours setting temperature will decrease 2 C 3 F 4 F then the unit will run at this setting...

Страница 20: ...d If the remote controlleris locked the icon will be displayed on it in which case press any button the mark will flicker for three times If the keyboard is unlocked the mark will disappear 21 A bout sw ing up and down 1 Press swing up and down button continuously more than 2s the main unit will swing back and forth from up todown and then loosen the button the unit will stop swinging and present ...

Страница 21: ...imer on or timer off 3 Press LIGHT button to control the on and off of the displaying part of the unit This function may be not available for some units 4 Press TURBO button can realize the ON and OFF of TURBO function Q 0 r PO TP 10 23 IS ___ L yjjjj sleep ____ J I Replacement of Batteries in Remote Controller 1 Press the back side of remote controller marked with as shown in the fig and then pus...

Страница 22: ...t device 1 Short distance control setting for air conditioner using Wifi hotspot Step 1 Air conditioner Wifi is set in AP mode in factory You can search the air conditioner Wifi hotspot through your smart phone The name of Wifi hotspot is the last 8 numbers of the air conditioner mac address Password is 12345678 Step 2 Open APP and the screen will show the air conditioner that you just connected T...

Страница 23: ...onfiguring is displayed on the APP The buzzer in the indoor unit will give out a sound when configuration succeeds 2 AP configuration 4 steps of configuration Step 1 Enter homepage Device and then tap 3 at the top right corner Select Add device and enter the page Add device Tap Manual Configuration Step 2 Tap Next in the First Step Step 3 Select the wireless network of air conditioner APP will sho...

Страница 24: ...Service Manual Technical Information 21 ...

Страница 25: ...tance operation to control the air conditioner and then you can use the long distance control Functions introduction I U ser 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 to log in If password is ...

Страница 26: ...be generated Default name for air conditioner is the last 8 numbers of the air condtioner mac address Step 1 Tap and hold a0b417ac to enter the page Edit device Tap Image to select the source of image Select from Default images or Take photo or Choose from photos and save an image Step 2 Tap Name to change device name Save it and the new device name will be shown Enable button Lock device to lock ...

Страница 27: ...eset name 3 Set device image Please refer to step 1 in 2 1 3 Control functions 1 Common control functions General control on the operation of smart devices On Off temperature fan speed mode etc and the setting of advanced functions air exchange dry health light sleep energy saving upper limit Step 1 General control Enter the homepage Home control first Take babyroom as an example Tap babyroom and ...

Страница 28: ...d settings Tap to enter advanced settings You may select Air Dry Health Light Sleep or Energy saving 2 Advanced control functions Set scene Preset Link Infrared control only APPlicable to smart phones with infrared emitter Set scene Preset the operation of several smart devices by one tap On the page Home control tap the image of Home control to enter the page Edit scene Installation and Maintenan...

Страница 29: ...ect the air conditioner named babyroom Then select ON or OFF Continue to select the next execution device as instructed above Tap o s to set the interval Tap Save Tap the scene picture displayed on homepage Device to send the command Then the scene Back home will be in execution You may view the execution condition of the scene 26 Installation and Maintenance ...

Страница 30: ...me tap synchronize skip this operation step If such Hint interface doesn t show up please Tap Name to customize the preset name Preset device can t be selected and it will default to babyroom Select On for the timer type Select repeating days to complete the preset Multi device preset This can preset multiple devices to execute a command at a specific time Please refer to the instructions as how t...

Страница 31: ...am to enter the page Select device Take baby room as an example Tap babyroom Enter the page Select environment parameters W henbabyroom CTemp Mode Don off Tap Temperature to enter the page Select temperature parameter Slide up or down to adjust temperature Tap Upper limit or Lower limit Tap Mode and On Off to select the status of master device Then tap Save Step 2 Set time parameter for linkage Ta...

Страница 32: ... 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 and then repeat the above steps to set linkage of several scenes Installation and Maintenance 0 29 ...

Страница 33: ... sleep Expert sleep or DIY sleep Tap DIY sleep and then tap the left and right arrows to set sleep time Tap up and down arrows to adjust temperature at a specific sleep time to adjust fan speed and swing angle Tap Health Energy 4 Menu functions Menu functions Share Set History Feedback 1 Share To share quick configuration information and unit s information including local export and local import F...

Страница 34: ...ion and unit s information including backup to cloud and backup list on the cloud Backup to cloud Enter the Menu on the left and tap Backup Tap Backup to cloud and then tap Yes Then wait for the data download Select Backup list on the cloud Then backup records will APPear Tap Record to download data and recover data to local unit Installation and Maintenance 31 ...

Страница 35: ...tion mentioned before Otherwise remote control will be invalid 0 iH i Î B j B m t 11 55 Settings V ibration M D Message alerts m D Server Asia A Check fo r updates About product 4 Feedback User can feedback suggestions to back stage management for maintenance and development Tap Feedback Enter your suggestions and then submit it Installation and Maintenance ...

Страница 36: ...the connection between air conditioner and intelligent device l Short distance control setting for air conditioner using wifi hotspot Step 1 Air conditioner wifi is set in APP mode in factory You can search the air conditioner wifi hotspot through your smartphone Thename of wifi hotspotis the last 8 numbers of the air conditioner mac address Password is 12345678 ity X E LS n 1l 34 Smart network sw...

Страница 37: ...f air conditioner APP will show the password 12345678 default password of the network of air conditioner Then tap Next select the name of home WiFi router then enter the correct password and select a server to SIMc 3rd B O I W 1 1 16 50 Third step PleasechooseyourhomeW iFir 5 TP LINICFE13 a0b417ac BUFFALO 263862 TP LINK EDEA08 Q Password Step 4 If configuration is successful a window will pop up a...

Страница 38: ...In general the hot spot signal of air conditioner is the last 8 bits of MAC address Eg Select a0b41737 and enter the defaulted password 12345678 to connect it No SIM 12 32 PM Enter the password for a0b41737 Cancel Enter Password Join 1 2 3 4 5 6 7 8 9 0 H Step 3 Turn on APP press button press Add device to enter into the page of Add device and then select Manual configuration Enter wireless router...

Страница 39: ...to the wireless router such as Tenda_XXX and turning on the APP Functions introduction I 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 to log in If password is forgotton you can reset the pas...

Страница 40: ...t from Default images or Take photo or Choose from photos and save an image N oS IMC ard Q iS f 1 00 17 05 Edit device Save babyroom cm Temperatureunit Firmwareupdate Step 2 Tap Name to change device name Save it and the new device name will be shown Enable button Lock device to lock the device so that other smart phones can t search the device Tap Temperature unit to change the temperature unit N...

Страница 41: ...lect the repeating days Save the setting of preset name 3 Set device image Please refer to step 1 in 2 1 3 Control functions 1 Common control functions General control on the operation of smart devices On Off temperature fan speed mode etc and the setting of advanced functions air exchange dry health light sleep energy saving upper limit Step 1 General control Enter the homepage Device first Take ...

Страница 42: ...may select Air Dry Health Light Sleep or Energy saving 2 Advanced control functions Set scene Preset Link Infrared control only applicable to smart phones with infrared emitter Set scene Preset the operation of several smart devices by one tap On the page Device tap the image of Device to enter the page Edit scene Tap Add scene and edit the scene name for example Back home Add execution devices Ta...

Страница 43: ... of the scene 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 Slide up and down to set the time If you need to synchronize the time tap synchronize If s...

Страница 44: ... devices Then return to the page Device 4 Link This function is applicable to some models Select a master device When the environment satisfies the parameters as set in the master device slave devices will execute commands to realize devices linkage Step 1 Set the parameters of master device Select master device select environment parameters select master device status Tap K B at the top right cor...

Страница 45: ...parameter for linkage Tap Time parameter to enter the page Set time Slide time rightwards to turn on the setting Tap Execution time then tap Start and Stop to set start time and stop time respectively Tap OK at the top right corner to save the setting 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 dev...

Страница 46: ... including local export and local import For local import you just need to tap Local import and wait for the data download Local export Step 1 Export local data to another smart phone Enter menu page on the left side and tap Share to enter the page Share Then tap Local export WiFi TP LINK_FE13 Preparing data export Please connect your m obile phone and click Local Import button Please use the same...

Страница 47: ... router 2 Backup To keep backup of the quick configuration information and unit s information including backup to cloud and backup list on the cloud Backup to cloud Enter the menu page on the left and tap Backup Backuptocloud k Backuplistonthecloud Tap Backup to cloud and then tap Yes Then wait for the data download Select Backup list on the cloud Then backup records will appear Tap Record to down...

Страница 48: ... server setting in Configuration mentioned before Otherwise remote control will be invalid 1 NoSIMCard 0 100 16 53 1 1 Settings 1 Button shake M D Push message M D Check for updates Asia Asia Europe HongKong NorthAmerica 4 Help Please refer to Help of APP for the instruction of the latest functions Installation and Maintenance 4 5 ...

Страница 49: ...t will display E5 and out door yellow light will blink 5 times Antifreezing protection When the antifreezing protection is detected the compressor will stop the outdoor fan will stop after 30 seconds and the indoor fan and swing motor will keep running in the original mode When antifreezing protection is eliminated and the compressor has stopped for 3 minutes the compressor will resume running in ...

Страница 50: ...mpressor will be converted to 46Hz operation After 30 seconds the compressor will stop And after another 30 seconds the four way valve will be opened and after 60 seconds the compressor and the outer fan will be started the indoor fan will run under preset cold air prevention conditions and H1 will be displayed at temperature display area on the display panel Defrost frequency is 85Hz Protection C...

Страница 51: ... compressor will stop When the compressor remains at stop for at least 3 minutes the compressor will resume its operation If module protection occurs six times in succession the compressor will not be started again Overload protection If temperature sensed by the overload sensor is over 115 the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds If temperature is below...

Страница 52: ...5 25 26 27 27 27 27 27 26 26 26 27 28 28 28 28 28 27 27 27 28 29 29 29 29 29 28 28 28 29 29 29 29 29 29 28 28 29 30 30 30 30 30 30 29 29 30 30 30 30 30 30 30 29 29 2 In heating mode 2 1 When the initial set temperature is 16 C 60 8 F the unit will keep on running at this temperature 2 2 When the initial set temperature is 17 20 C 62 6 68 F the temperature will decrease 1 C 1 8 F by every hour afte...

Страница 53: ...indication pattern will light and display the current operation mode the mode light in cludes Cooling heating and dehumidify If you close the light key all the display patterns will close Double 8 display According to the different setting of remote control the nixie light may display the current temperature the temperature scope is from 16 C 60 8 F to 30 C 86 F and indoor ambient temperature The ...

Страница 54: ... specialized power cord o r connection wire from the m anufacture o r distributor P rohibit prolong the wire by yourself 11 For the air conditioner w itho ut plug an air sw itch must be installed in the circuit The air sw itch should be all pole parting and the contact parting distance should be more than 3mm 12 Make sure all w ires and pipes are connected properly and the valves are opened before...

Страница 55: ... refrigerant recovery make sure that liquid valve and gas valve are fu lly closed and power is disconnected before detaching the connection pipe If com pressor starts running when stop valve is open and connection pipe is not yet con nected air w ill be sucked in and cause pressure rise o r com pressor rupture resulting in injury 5 When installing the unit make sure that connection pipe is securel...

Страница 56: ...e It s only allowed to be operated in the room s that meet the requirem ent o f the nameplate C heck w hether the m aintenance area is w ell ventilated The continuous ventilation status should be kept during the operation process C heck w hether there is fire source o r potential fire source in the m aintenance area The naked flam e is prohibited in the m aintenance area and the no sm oking w arni...

Страница 57: ...ll head electric drill 4 Electroprobe 5 Universal meter 6 T o rq u e w re n c h o p e n e n d w re n c h in n e r hexagon spanner 7 E lectronic leakage detector 8 Vacuum pump 9 Pressure meter 10 Pipe pliers pipe cutter 11 Pipe expander pipe bender 12 Soldering appliance refrigerant container 54 Installation and Maintenance ...

Страница 58: ...Service Manual 8 Installation 8 1 Installation Dimension Diagram Installation and Maintenance 55 ...

Страница 59: ...r unit A W sele ct it according to the actual situation Fix outdoor unity r Install drainage joint of outdoor unit y only for cooling and heating unit Make the bound pipes pass through the wall hole and then connect outdoor unit j Connect pipes of outdoor unit Connect wires of outdoor unit Neaten he pipes Vacuum pumping and leakage detection Check after installation and test operation Finish insta...

Страница 60: ...to the local safety regulations use qualified power supply circuit and air switch 3 Make sure the power supply matches with the requirement of air conditioner Unstable power supply or incorrect wiring may result in electric shock fire hazard or malfunction Please install proper power supply cables before using the air conditioner Air conditioner Air switch capacity 18 24K 25A 4 Properly connect th...

Страница 61: ...how in Fig 3 2 W hen selecting leading out the pipe from left or right please cut off the corresponding hole on the bottom case As show in Fig 4 Left Fig 3 Cut off th e hole Left Rear left 5 Connect the Pipe o f Indoor Unit 1 Aim the pipe joint at the corresponding bellmouth As show in Fig 5 2 Pretightening the union nut with hand 3 Adjust the torque force by referring to the following sheet Place...

Страница 62: ...ir conditioner without plug an air switch must be installed in the line The air switch should be all pole parting and the contact parting distance should be more than 3mm 8 Bind up Pipe 1 Bind up the connection pipe power cord and drain hose with the band As show in Fig 14 2 Reserve a certain length of drain hose and power cord for installation when binding them When binding to a certain degree se...

Страница 63: ...r 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 in Fig 22 Liquid pipe gas pipe gas valve Fig 22 Pipe jo in t Union nut 3 Pretightening the union nut with hand 4 Tighten the union nut with torque wrench Refer to the following table for wrench moment of force Hex nut diameter mm Tightening tor...

Страница 64: ...eck according to the following requirement after finishing installation NO Items to be checked Possible malfunction 1 Has the unit been installed firmly The unit may drop shake or emit noise 2 Have you done the refrigerant leakage test It may cause insufficient cooling heating capacity 3 Is heat insulation of pipeline sufficient It may cause condensation and water dripping 4 Is water drained well ...

Страница 65: ...scharge protection overload 5 Overcurrent protection E5 OFF 1S and blink 5 times 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 low and load is too high 3 Evaporator is dirty 6 Communi cation Malfunction E6 Always During cooling operation compressor stops whil...

Страница 66: ...nt temperature sensor is open short circuited F3 OFF 1S and blink 6 times During cooling and drying operating compressor stops while indoor fan operates During heating operation the complete unit will stop operation Outdoor temperature sensor hasnt been connected well or is damaged Please check it by referring to the resistance table for temperature sensor 15 Outdoor condenser temperature sensor i...

Страница 67: ... stop operation 1 Measure the voltage of position L and N on wiring board XT if the voltage 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 if its normal theres malfunction for the circuit please replace the control panel AP1 22 Voltage of DC bus bar is ...

Страница 68: ...ule temperature sensor 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 high temperature protection P8 During cooling operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop After the complete uni...

Страница 69: ...4 Motor malfunction 5 Malfunction of mainboard rev detecting circuit 37 Desynchro nizing of compressor H7 During cooling and drying operation compressor will stop while indoor fan will operate During heating operation the complete unit will stop operation Refer to the malfunction analysis IPM protection loss of synchronism protection and overcurrent protection of phase current for compressor За PF...

Страница 70: ...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 operation Theres circuit malfunction on outdoor units control panel API please replace the outdoor units control panel API 46 The four way valve is abnormal U7 If this malfunction occurs during heating ope...

Страница 71: ...ating Indicator Yellow Indicator Red Indicator Green Indicator 52 Normal communica tion OFF 0 5S and blink once 53 Defrosting OFF 3S and blink once during blinking ON 10s and OFF 0 5s OFF 1S and blink twice Defrosting will occur in heating mode Compressor will operate while indoor fan will stop operation Its the normal state 54 U8 The complete unit stops 1 Power supply is abnormal 2 Detection circ...

Страница 72: ...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 Is the temperature sensor broken Is mainboard broken Malfunction diagnosis process Start T Yes Installation and Maintenance 69 ...

Страница 73: ...G motor connected tightly The fan motor can t operate The motor is broken Detectioncircuit of the mainboard is defined abnormal Malfunction diagnosis process Under power off condition check whether the wiring terminal between indoor fan and main board is loose Reinsert the wiring terminal of indoor fan Turn unit on to check whether the malfunction is eliminated 70 Installation and Maintenance No ...

Страница 74: ... cap inserted correctly and tightly The jumper is broken The motor is broken Detection circuit of the mainboard is defined abnormal Malfunction diagnosis process No Yes f яр Assemble the jumper cap with the same model r No Replace the mainboard with the same model f End 3 Appearance of the jumper cap Yes Installation and Maintenance 71 ...

Страница 75: ...n o f O vercurrent Protection E5 Main detection points Is the supply voltage unstable with big fluctuation Is the supply voltage too low with overload Hardware trouble Malfunction diagnosis process 72 Installation and Maintenance ...

Страница 76: ...Service Manual 5 C om m unica tion M alfunction E6 Installation and Maintenance 73 ...

Страница 77: ...Service Manual 6 M a lfu nction o f d e tecting plate W IFI JF Installation and Maintenance ...

Страница 78: ...w means control board o f outdoor unit Main detection points Detect if the voltage of L and N terminal of XT wiring board is between 210VAC 240VAC by alternating voltage meter Is reactor L well connected Is connection wire loosened or pulled out Is reactor L damaged Installation and Maintenance 75 ...

Страница 79: ...compressor COMP If they are loosened If the connection sequence is correct Heat exchange of unit is not good heat exchanger is dirty andunit radiating environment is bad If the system pressure is too high If the refrigerant charging amount is appropriate If coil resistance of compressor is normal Is compressor coil insulating to copper pipe well If the work load of unit is heavy If radiating of un...

Страница 80: ... below means control board o f outdoor unit Main detection points If the outdoor ambient temperature is in normal range If the indoor and outdoor fan are running normally If the radiating environment of indoor and outdoor unit is good Installation and Maintenance 77 ...

Страница 81: ... amount is too much The stop time is not sufficient and the high and low pressure of system is not balanced please start the uni after 3min Check the connection situation of outdoor mainboard API and compressor COMP and the connect it according to wiring diagram Yes Charge the refrigerant according to service manual No _____ ______ Replace outdoor mainboard API No _____N_____ Replace the compresso...

Страница 82: ...erant 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 heat exchanger is dirty and unit radiating environment is bad Too much load of the system causes high temperature of compressor after working for a long time Malfunction of discharge temperature sensor Installation and Maintenan...

Страница 83: ...Service Manual 80 Installation and Maintenance ...

Страница 84: ...r power factor m alfunction outdoor unit m alfunction Main detection points Check if power plug is connected well with the socket Check if the reactor of outdoor unit is damaged Malfunction diagnosis process Installation and Maintenance ...

Страница 85: ...nection wire and the built in wiring of indoor and outdoor unit are connected well and without damage If the communication circuit of indoor mainboard is damaged If the communication circuit of outdoor mainboard AP1 is damaged Malfunction diagnosis process 82 Installation and Maintenance ...

Страница 86: ...and outdoor unit is improper Check whether the installation postion is proper according to installation requirement for air conditioner Adjust the installation position and install the rainproof and sunproof for outdoor unit Refrigerant is leaking Discharged air temperature during cooling is higher than normal discharged wind temperature Discharged air temperature during heating is lower than norm...

Страница 87: ...ressor is blocked Compressor can t operate Repair or replace compressor 6 A ir C onditioner is Leaking Possible causes Discriminating method air conditioner status Troubleshooting Drain pipe is blocked Water leaking from indoor unit Eliminate the foreign objects inside the drain pipe Drain pipe is broken Water leaking from drain pipe Replace drain pipe Wrapping is not tight Water leaking from the ...

Страница 88: ...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 Installation and Maintenance ...

Страница 89: ... Rubber Plug Water Tray 76712012 76712012 1 18 Connecting pipe clamp 26112514 26112514 1 19 Crank 73012005 73012005 1 20 Stepping Motor 1521240210 1521240210 1 21 Motor Press Plate 26112515 26112515 1 22 Fan Motor 1501213601 1501213601 1 23 Screw Cover 22242191 22242191 24 Electric Box Assy 100002001817 100002000608 1 25 Electric Box 20112211 2011221102 1 26 Lower Shield of Electric Box 01592139 0...

Страница 90: ...Service Manual 10 2 Outdoor Unit 6 7 8 9 10 11 12 13 14 15 16 17 18 The component picture is only for reference please refer to the actual product Installation and Maintenance 87 ...

Страница 91: ...sy 01235091 017021000067 1 15 Condenser Assy 011002000486 011002000285 1 16 Rear Grill 01475013 01475013 1 17 Wiring Clamp 26115004 26115004 1 18 Temp Sensor 39000072 39000072 1 19 Right Side Plate 0130504401P 0130504401P 1 20 Big Handle 26235001 26235001 1 21 Cut off Valve 0713517901 0713517901 1 22 Valve Support Sub Assy 0170506101P 0170506101P 1 23 Baffle Valve Support 26115007 26115007 1 24 El...

Страница 92: ... 1 Remove filter Open the panel Loosen the clasp shown and then pull the left filter and right filer outwards to remove them 2 Remove horizontal louver Push out the axile bush on horizontal louver Bend the horizontal louver with hand and then separate the horizontal louver from the crankshaft of step motor to remove it Installation and Maintenance 89 ...

Страница 93: ...oves the front panel Screws 4 Remove electric box cover 2 Remove the screws on the electric box cover to remove the electric box cover 2 5 Remove front case sub assy Remove the screws fixing front case Loosen the clasps of front case Life the front case sub assy upwards to remove it Front case sub assy 6 Remove vertical louver Loosen the connection clasps between vertical louver and bottom case to...

Страница 94: ...evaporator Remove the screws at the connection place between grounding wire and evaporator 9 Remove shield cover of electric box sub assy Loosen the connection clasps between shield cover of electric box sub assy and electric box and then remove the shield cover of electric box sub assy Shield cover of electric box sub assy 10 Remove wiring terminal Pull out the wiring terminal of motor and wiring...

Страница 95: ... clamp and then remove the connection pipe clamp Screw Connection pipe clamp 13 Remove evaporator assy Evaporator assy Remove 3 screws fixing evaporator assy Adjust the position of connection pipe on evaporator slightly and then lift the evaporator upwards to remove it Screws Screws 14 Remove stepping motor Remove the screw fixing step motor and then remove the step motor Screws Step motor 9 2 0 I...

Страница 96: ...or clamp and then remove the motor clamp Remove the screws at the connection place of cross flow blade and motor lift the motor and cross flow blade upwards to remove them Remove the bearing holder sub assy Motor clamp Screws Cross flow Screw Motor Holder sub assy Installation and Maintenance 93 ...

Страница 97: ...e handle and valve cover up ward to remove it 2 Remove top panel Remove the screws connecting the top panel with the front panel and left right side plate and then remove the top panel top panel 3 Remove front side panel Loosen the screws connecting the front side panel and chassis Remove the front side panel front side panel 94 Installation and Maintenance ...

Страница 98: ...is and motor support with screwd river and then remove the panel grille panel 5 Remove right side plate Twist off the screws connecting the right side plate and chassis valve support and condenser and then remove the right side plate right side plate 6 Remove axial flow blade Twist off the nuts on blade with wrench and then remove the axial flow blade Installation and Maintenance 95 ...

Страница 99: ...erminal pull it upwards to remove the electric box Twist off the screws on electric box fireproofing with screwdriver and then remove the electric box fireproofing electric box fireproofing 8 Remove motor Twist off the tapping screws fixing the motor pull out the pin of leading wire for motor and then remove the motor motor 96 Installation and Maintenance ...

Страница 100: ...t 10 Remove isolation sheet Twist off the screws connecting isolation sheet and end plate of condenser and chassis and then remove the isolation sheet 11 Remove 4 way valve Unsolder the pipeline between compressor condenser gas and liquid valve and then remove the 4 way valve note release all refrigerant before unsoldering Installation and Maintenance 97 ...

Страница 101: ...with wet cloth completely to avoid the damage to valve and release all refrigerant completely at first Unsolder the soldering joint between liquid valve and connection pipe of liquid valve and then remove the liquid valve 13 Remove valve support Twist off the screws connecting valve support and chassis and then remove the valve support valve support 14 Remove compressor Twist off the 3 foot nuts o...

Страница 102: ... side plate Twist off the screws connecting the left side plate and chassis with screwdriver and then remove the left side plate 16 Remove chassis and condenser Pull it upwards to separate the chassis and condenser Installation and Maintenance 99 ...

Страница 103: ... 11 75 76 75 2 24 99 98 6 37 54 53 6 12 77 78 77 25 Appendix 2 Configuration of Connection Pipe I Standard length of connection pipe 5m 7 5m 8m 2 Min length of connection pipe is 3m 3 Max length of connection pipe and max high difference More details please refer to the specifications 4 The additional refrigerant oil and refrigerant charging required after prolonging connection pipe After the leng...

Страница 104: ...ipe C Put on suitable insulating pipe D o w n w a rd s P ipe S h a p e r D Put on the union nut Remove the union nut on the indoor connection pipe and outdoor valve install the union nut on the pipe Union pipe Pipe E Expand the port Expand the port with expander A Note A is different according to the diameter please refer to the sheet below Outer diameter mm A mm Max Min 0 6 6 35 1 4 1 3 0 7 09 52...

Страница 105: ...37 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 2 064 116 0 642 0 49 02 39 8 297 78 1 997 117 0 625 1 46 6 40 7 967 79 1 933 118 0 608 2 44 31 41 7 653 80 1 871 119 0 592 3 42 14 42 7 352 81 1 811 120 0 577 4 40 09 43 7 065 82 1 754 121 0 561 5 38 15 44 6 791 83 1 699 122 0 547 6 36 ...

Страница 106: ...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 2 663 117 0 833 1 62 13 40 10 62 79 2 577 118 0 811 2 59 08 41 10 2 80 2 495 119 0 77 3 56 19 42 9 803 81 2 415 120 0 769 4 53 46 43 9 42 82 2 339 121 0 746 5 50 87 44 9 054 83 2 265 122 0 729 6 48 42 45 8 705 84 2 194 123 0 71 7 46 ...

Страница 107: ...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 10 274 29 41 34 68 9 17 107 2 72 9 259 3 30 39 61 69 8 85 108 2 64 8 245 6 31 37 96 70 8 56 109 2 57 7 232 6 32 36 38 71 8 27 110 2 50 6 220 5 33 34 88 72 7 99 111 2 43 5 209 34 33 45 73 7 73 112 2 37 4 198 3 35 32 09 74 7 47 113 2 30...

Страница 108: ...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 For product improvement specifications and appearance in this manual are subject to change without prior notice ...

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