Gree GWH09ACC-K6DN A1 A/I Service Manual page 69

Service Manual
Analysis or processing of some of the malfunction display:
1. Compressor discharge protection
3RVVLEOH FDXVHV VKRUWDJH RI UHIULJHUDQW EORFNDJH RI DLU ILOWHU SRRU YHQWLODWLRQ RU DLU IORZ VKRUW SDVV IRU FRQGHQVHU WKH V\VWHP
KDV QRQFRQGHQVLQJ JDV VXFK DV DLU ZDWHU HWF EORFNDJH RI FDSLOODU\ DVV\ LQFOXGLQJ ¿OWHU OHDNDJH LQVLGH IRXUZD\ YDOYH FDXVHV
LQFRUUHFW RSHUDWLRQ PDOIXQFWLRQ RI FRPSUHVVRU PDOIXQFWLRQ RI SURWHFWLRQ UHOD\ PDOIXQFWLRQ RI GLVFKDUJH VHQVRU RXWGRRU WHPSHUDWXUH
WRR KLJK
3URFHVVLQJ PHWKRG UHIHU WR WKH PDOIXQFWLRQ DQDO\VLV LQ WKH DERYH VHFWLRQ
2. Low voltage overcurrent protection
3RVVLEOH FDXVH 6XGGHQ GURS RI VXSSO\ YROWDJH
3.
3URFHVVLQJ PHWKRG &KHFN LI FRPPXQLFDWLRQ VLJQDO FDEOH LV FRQQHFWHG UHOLDEO\
4. Sensor open or short circuit
3URFHVVLQJ PHWKRG &KHFN ZKHWKHU VHQVRU LV QRUPDO FRQQHFWHG ZLWK WKH FRUUH VSRQGLQJ SRVLWLRQ RQ WKH FRQWUROOHU DQG LI GDPDJH RI
OHDG ZLUH LV IRXQG
5. Compressor over load protection
3RVVLEOH FDXVHV LQVXIILFLHQW RU WRR PXFK UHIULJUDQW EORFNDJH RI FDSLOODU\ DQG LQFUHDVH RI VXFWLRQ WHPS LPSURSHU UXQQLQJ RI
FRPSUHVVRU EXUQLQJ LQ RU VWXFN RI EHDULQJ GDPDJH RI GLVFKDUJH YDOYH PDOIXQFWLRQ RI SURWHFWRU
3URFHVVLQJ PHWKRG DGMXVW UHIULJHUDQW DPRXQW UHSODFH WKH FDSLOODU\ UHSODFH WKH FRPSUHVVRU XVH XQLYHUVDO PHWHU WR FKHFN LI WKH
FRQWDFWRU RI FRPSUHVV RU LV ¿QH ZKHQ LW LV QRW RYHUKHDWHG LI QRW UHSODFH WKH SURWHFWRU
6. System malfunction
LHRYHUORDG SURWHFWLRQ:KHQ WXEH WHPSHUDWXUH &KHFN WKH WHPSHUDWXUH RI RXWGRRU KHDW H[FKDQJHU ZKHQ FRROLQJ DQG FKHFN WKH
WHPSHUDWXU H RI LQGRRU KHDW H[FKDQJHU ZKHQ KHDWLQJ LV WRR KLJK SURWHFWLRQ ZLOO EH DFWLYDWHG
3RVVLEOH FDXVHV 2XWGRRU WHPSHUDWXUH LV WRR KLJK ZKHQ FRROLQJ LQVXI¿FLHQW RXWGRRU DLU FLUFXODWLRQ UHIULJHUDQW ÀRZ PDOIXQFWLRQ
SOHDVH UHIHU WR WKH PDOIXQFWLRQ DQDO\VLV LQ WKH SUHYLRXV VHFWLRQ IRU KDQGOLQJ PHWKRG 
7. IPM module protection
3URFHVVLQJ PHWKRG 2QFH WKH PRGXOH PDOIXQFWLRQ KDSSHQVLI LW SHUVLVWV IRU D ORQJ WLPH DQG FDQ QRW EH VHOIFDQFHOHG FXW RII WKH SRZHU
DQG WXUQ RII WKH XQLWDQG WKHQ UHHQHUJL]H WKH XQLW DJDLQ DIWHU DERXW  PLQ$IWHU UHSHDWLQJ WKH SURFHGXUH IRU VHYHU WLPHV LI WKH
PDOIXQFWLRQ VWLOO H[LVWVUHSODFH WKH PRGXOH
Installation and Maintenance
66