Gree GWC09QB-K3DNA1B

45
Installation and Maintenance
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IRXUZD\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
3RVVLEOHFDXVH6XGGHQGURSRIVXSSO\YROWDJH
3. Communication malfunction
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SURWHFWLRQZLOOEHDFWLYDWHG
3RVVLEOH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KDSSHQVLILWSHUVLVWVIRUDORQJWLPHDQGFDQQRWEHVHOIFDQFHOHGFXWRIIWKHSRZHU
DQGWXUQRIIWKHXQLWDQGWKHQUHHQHUJL]HWKHXQLWDJDLQDIWHUDERXWPLQ$IWHUUHSHDWLQJ WKHSURFHGXUH IRUVHYHU WLPHVLIWKH
PDOIXQFWLRQVWLOOH[LVWVUHSODFHWKHPRGXOH