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33

Troubleshooting

M alfunction is

eliminated.

No

Yes

“U8” is
displayed on
the unit.

Re-energize 1
minute after
de-erergization

Is“U8”
still displayed?

The zero-cross detection
circuit of the mainboard is
defined abnormal. Replace
the mainboard.

The unit returns to normal.
Conclusion: U8 is displayed due to
instant energization after de-
energization while the capacitor
discharges slowly.

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7KH FRQWUROOHU GLDJQRVHV LQFRUUHFWO\ GXH WR LQVWDQW HQHUJL]DWLRQ DIWHU GHHQHUJL]HG ZKLOH WKH FDSDFLWRU GLVFKDUJHV VORZO\
0DOIXQFWLRQRIWKH]HURFURVVGHWHFWLRQFLUFXLWRIWKHPDLQERDUG
6HHWKHÀRZFKDUWEHORZ

9.2.4 U8 Malfunction

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Содержание GWH(07)RA-K3DNA1A/I

Страница 1: ...Service Manual GREE ELECTRIC APPLIANCES INC OF ZHUHAI MODEL GWH 07 RA K3DNA1A I GWH 09 RA K3DNA1A I GWH 12 RB K3DNA1A I GWH 18 RC K3DNA1A I...

Страница 2: ...QJ 7 3ULQWHG LUFXLW RDUG 8 6 Function and Control 9 5HPRWH RQWURO 2SHUDWLRQV 9 HVFULSWLRQ RI DFK RQWURO 2SHUDWLRQ 13 7 Installation Manual 16 1RWLFHV IRU QVWDOODWLRQ 16 QVWDOODWLRQ UDZLQJ 17 QVWDOO QG...

Страница 3: ...atures 1 Summary and Features Indoor Unit Remote Controller GWH 07 RA K3DNA1A I GWH 09 RA K3DNA1A I GWH 12 RB K3DNA1A I GWH 18 RC K3DNA1A I YT1F FAN MODE I FEEL CLOCK TIMER ON X FAN TEMP TIMER OFF TUR...

Страница 4: ...FLDOL HG VXEFRQWUDFWRU DV WKHUH LV WKH ULVN RI UH HOHFWULF shock explosion or injury 0DNH VXUH WKH RXWGRRU XQLW LV LQVWDOOHG RQ D VWDEOH OHYHO surface with no accumulation of snow leaves or trash besi...

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Страница 7: ...5 Constrction Views 3 Construction Views R R S S D Q Q Unit mm 12K Unit 07 09K Unit 18K Unit 0RGHO D Q R S 794 264 5 182 51 605 138 848 274 189 130 542 176 945 298 208 57 694 194 R S Q...

Страница 8: ...ailable for 14K 18K model C2 C3 D3 D2 B3 B2 A2 A3 A1 A unit electronic expansion valve B1 B unit electronic expansion valve C1 C unit electronic expansion valve D1 D unit electronic expansion valve A2...

Страница 9: ...7KHVH FLUFXLW GLDJUDPV DUH VXEMHFW WR FKDQJH ZLWKRXW QRWLFH SOHDVH UHIHU WR WKH RQH VXSSOLHG ZLWK WKH XQLW M1 M2 MOTOR SWING optional RD BU GENERATOR COOL PLASMA HEALTH L HEALTH N DISPLAY BOARD RECEIV...

Страница 10: ...O ZLUH 3 HDOWK FRQWURO FRQQHFWRU 4 RQWURO FRQQHFWRU RI LQGRRU IDQ 5 5 FDSDFLWRU 6 XWR EXWWRQ 7 8S GRZQ VZLQJ 8 HHGEDFN LQWHUIDFH RI LQGRRU IDQ 9 QWHUIDFH RI MXPSHU FDS 10 LVSOD FRQWURO LQWHUIDFH 11 PE...

Страница 11: ...t to set AIR function CLOCK Press it set clock TIMER ON Press it to set auto on timer Press it set swing angle X FAN TEMP TIMER OFF Press it to set auto off timer TURBO SLEEP LIGHT Press it to turn on...

Страница 12: ...fan speed setting AUTO Low Med High Your selection will be displayed in the LCD windows except the AUTO fan speed HEALTH icon is displayed when pressing the HEALTH button Press this button again to cl...

Страница 13: ...d off the unit After energization X FAN OFF is defaulted X FAN is not available in AUTO FAN or HEAT mode TEMP Press this button could select displaying the indoor setting temperature or indoor ambient...

Страница 14: ...ot use old or different types of batteries otherwise it may cause malfunction If the remote controller will not be used for a long time please remove batteries to prevent batteries from leaking The op...

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Страница 16: ...LQWHUYDO LV K DQG WKH VHWWLQJ UDQJH LV K 2 Clock Timer 7LPHU 2Q I 7LPHU 2Q LV VHW ZKHQ WKH V VWHP UXQV LW ZLOO FRQWLQXH WR UXQ LI 7LPHU 2Q LV VHW ZKHQ WKH V VWHP LV RII WKH V VWHP ZLOO VWDUW WR UXQ LQ...

Страница 17: ...RU IDQ ZLOO RSHUDWH DW KLJK VSHHG ZKLOH RXWGRRU XQLW ZLOO RSHUDWH DW KLJK IUHTXHQF LQ FRROLQJ RU KHDWLQJ PRGH 12 Defrosting Mode Switch I WKHUH LV QR GLVSOD HG WXUQ RQ WKH XQLW ZLWK UHPRWH FRQWUROOHU...

Страница 18: ...YDLOV VXFK DV FORVH WR FRDVWDO DUHDV WKH DLU LV FRQWDPLQDWHG ZLWK LQGXVWULDO YDSRXUV DQG RLOV WKH DLU FRQWDLQV VXOSKXUHV JDV VXFK DV LQ KRW VSULQJ RQHV FRUURVLRQ RU SRRU DLU TXDOLW H LVWV 7 1 2 Instal...

Страница 19: ...WKLQJ WHUPLQDO 3OHDVH GR QRW FRQQHFW WKH HDUWKLQJ ZLUH ZLWK WKH IROORZLQJ DWHU SLSH DV SLSH RQWDPLQDWLRQ SLSH 2WKHU SODFH WKDW SURIHVVLRQDO SHUVRQQHO FRQVLGHU LV XQUHOLDEOH 7KH PRGHO DQG UDWHG YDOXHV...

Страница 20: ...HYHQW WKH VKLIW RI LQVXODWLQJ WXEH 6ODQW WKH GUDLQ KRVH GRZQZDUG VOLJKWO IRU VPRRWK GUDLQDJH RI FRQGHQVDWH Note The insulating tube should be connected reliably with the sleeve outside the outlet pipe...

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Страница 22: ...LUHFWLRQ DQG WKHQ UHPRYH WKH DLU OWHU DV VKRZQ LQ LJ D WWDFK WKH KHDOWK OWHU RQWR WKH DLU OWHU DV VKRZQ LQ LJ E QVWDOO WKH DLU OWHU SURSHUO DORQJ WKH DUURZ GLUHFWLRQ LQ LJ F DQG WKHQ FORVH WKH SDQHO 7...

Страница 23: ...21 Exploded Views and Parts List 8 Exploded Views and Parts List 5 1 14 13 12 15 16 17 19 20 21 22 23 25 26 27 28 29 30 31 33 35 36 11 10 9 8 7 6 5 4 3 2 1 34 37 38 39 18 24 40 41 42 32 43...

Страница 24: ...001406 1 20 7HPS 6HQVRU VOHHYLQJ 05212423 1 21 YDSRUDWRU VV 0100274301 1 22 YDSRUDWRU 6XSSRUW 24212090 1 23 5HPRWH RQWUROOHU 305100492 1 24 RQQHFWLQJ DEOH 400204056 0 25 DOO 0RXQWLQJ UDPH 01252015 1 2...

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Страница 26: ...001406 1 20 7HPS 6HQVRU VOHHYLQJ 05212423 1 21 YDSRUDWRU VV 0100274301 1 22 YDSRUDWRU 6XSSRUW 24212090 1 23 5HPRWH RQWUROOHU 305100492 1 24 RQQHFWLQJ DEOH 400204056 0 25 DOO 0RXQWLQJ UDPH 01252015 1 2...

Страница 27: ...25 Exploded Views and Parts List 5 1 36 34 35 37 16 13 12 11 15 9 8 6 4 2 28 31 32 25 24 18 26 7 30 27 3 1 10 17 19 20 21 23 22 33 5 14 29...

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Страница 29: ...27 Exploded Views and Parts List 5 1 2 3 4 5 6 7 8 9 21 18 19 20 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 1 1011 12 13 14 15 16 17...

Страница 30: ...VV RI HDULQJ 76512051 1 15 5LQJ RI HDULQJ 26152022 1 16 YDSRUDWRU VV 01002575 1 17 YDSRUDWRU 6XSSRUW 24212100 1 18 3LSH ODPS 2611216401 1 19 0RWRU 3UHVV 3ODWH 26112494 1 20 DQ 0RWRU 15012116 1 21 DOO...

Страница 31: ...splay control via remote controller QWHU GLVSOD FRQWURO SUHVV OLJKW EXWWRQ VXFFHVVLYHO IRU WLPHV ZLWKLQ V WR GLVSOD WKH FRUUHVSRQGLQJ PDOIXQFWLRQ FRGH LW GLVSOD FRQWURO SUHVVLQJ OLJKW EXWWRQ VXFFHVVLY...

Страница 32: ...nd no no no no yes yes Malfunction is removed no yes yes no Is the wiring terminal between temperature sensor and the controller loosened or poorly contacted Is there short circuit due to tri pover of...

Страница 33: ...er cap The mainboard is defined abnormal replace it Yes No Yes End Is the malfunction eliminated Yes No No Yes Replace the jumper cap No Yes Is the malfunction eliminated Is the malfunction eliminated...

Страница 34: ...in after the louvers are opened whether the output voltage on the control terminal of the PG motor is over 50V No Yes No Is the malfunction eliminated No Is the malfunction eliminated No No No Yes Yes...

Страница 35: ...mal Replace the mainboard The unit returns to normal Conclusion U8 is displayed due to instant energization after de energization while the capacitor discharges slowly 3RVVLEOH FDXVHV 7KH FRQWUROOHU G...

Страница 36: ...broken down indoor unit resume normal De energize the unit and check if the connecting wire of indoor and outdoor unit and wiring of electric box are correct Is wire connected correctly Connect wires...

Страница 37: ...plate is correct Yes No Check if there is power input between neutral wire and live wire of outdoor unit No Yes End Is malfunction removed Yes No Does communication resume normal Is there power input...

Страница 38: ...0 717 60 23 35 9 779 74 2 28 113 0 697 57 18 36 9 382 75 2 206 114 0 678 54 31 37 9 003 76 2 133 115 0 66 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...

Страница 39: ...0 956 80 31 35 13 04 74 3 04 113 0 93 76 24 36 12 51 75 2 94 114 0 904 72 41 37 12 76 2 844 115 0 88 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...

Страница 40: ...5 49 19 64 10 54 103 3 04 323 9 26 47 08 65 10 18 104 2 955 306 2 27 45 07 66 9 827 105 2 872 289 6 28 43 16 67 9 489 106 2 792 274 29 41 34 68 9 165 107 2 715 259 3 30 39 61 69 8 854 108 2 64 245 6 3...

Страница 41: ...es before disassembly e r u d e c o r P s p e t S 1 Before disassembly 2 Remove filter and horizontal louver Open the front panel Push the fi lter inward and then draw itupward to remove it Remove axi...

Страница 42: ...indicator and then remove the indicator Remove connection screws between electric box cover 2 and front case Then remove the electric box cover 2 1 Screw 2 4 Remove electric box cover 2 Remove rotati...

Страница 43: ...move front case 6 Remove vertical louver Screw Clasp Remove connection screws between front case and rear case Release clasp connecting front case and rear case and then remove the front case Remove 1...

Страница 44: ...temp sensor Remove connection screws of electric box assy and rear case Release clasps and remove connection screws of earthing wire and evaporator assy Then remove electric box assy Turn over the re...

Страница 45: ...or 9 Remove cross flow fan and motor Remove screws of step motor and then remove the motor Remove 4 connection screws of motor clamp and rear case Then remove motor clamp Remove ring of bearing sub as...

Страница 46: ...imum of 10 minutes after turning off all power supplies before disassembly 1 2 2 Remove filter Open the front panel Filter 1 Before disassembly Before disassembly Push the filter upward and then pull...

Страница 47: ...de louver 1 2 1 2 Remove the axile bush on the guide louver 4 Remove panel Loosen the screws fixing the display Remove the panel Along the groove fixing front panel slide the rotor shaft outward to re...

Страница 48: ...osen the screw of the electric box cover Remove the electric box cover 6 Remove front case Open the screw cap on the front case Remove the screws fixing the front case Loosen the clasps of the front c...

Страница 49: ...cal louver Loosen the 10 clasps connecting the verticallouver and bottom case subassembly Remove the vertical louver 8 Remove electric box subassembly Disconnect the indoor tube temperaturesensor Fron...

Страница 50: ...lectric box cover and the electric box Remove the electric box cover Loosen the screws fixing the electric box and remove the electric box Screw Ground Wire Electric Box Wiring Terminal of Motor Wirin...

Страница 51: ...1 1 2 9 Remove connecting pipe clamp Remove the screw of the connecting pipe clamp Remove the connecting pipe clamp 10 Remove evaporator Remove the screws at the joint of the evaporator and bottom ca...

Страница 52: ...ly to separate the connecting pipe and the evaporator Remove the evaporator 11 Remove motor and cross flow fan Remove the screw of the step motor and remove the step motor Remove the screw of the moto...

Страница 53: ...assy of Bearing Ring of Bearing Cross Flow Fan Fan Motor Remove the cross flow blade and motor Remove the rubber cushion of the bearing Remove the screws at the joint of the cross flow blade and the m...

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