Shinco Service Manual
KFR-50GWZ/BM、KFR-70GWZ/BM
Item | FAULT | CODE | CHECK POINT | COUNT MEASURE |
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1 | INDOOR AIR SENSOR IS FAULTY | E1 | 1、CHECK THE SENSOR VALUE | CHANGE SENDOR |
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| 2、INDOOR BOARD IS FAULT |
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2 | INDOOR PIPE SENSOR IS FAULTY | E2 |
| CHANGE INDOOR BOARD |
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3 | INDOOR | E3 | ||
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4 | COMMUNICATION FAULT BETWEEN | E4 | 1、CHECK IF THE CONNECTING WIRING IS CONNECT WELL | 1、FIX THE WIRING AGAIN。 |
| INDOOR UNIT AND OUTDOOR UNIT |
| 2、TEST THE VOLTAGE VALUE BETWEEN L4 AND S, IF IT ‘S |
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| CHANGE REGULARLY，THE SINGAL TRANSFERING BETWEEN |
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| INDOOR AND OUTDOOR UNIT IS GOOD， |
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| WHEN IT’S NO CHANGE | 2、CHANGE RELATE PCB BOARD |
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| IF VALUE IS BELOW 14V， THE INDOOR PCB BOARD IS FAULT， |
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| CHANGE IT. |
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| IF VALUE IS OVER 14V,THE OUTDOOR PCB IS FAULTY |
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| 3、CHECK IF THERE IS LED FLASHING ON THE OUTDOOR PCB |
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| IF THERE IS NO FLASHING，CHECK VOLTAGE VALUE FROM |
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| POWER BOARD TO PFC BOARD, BETWEEN ACL AND CAN ON PFC |
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| BOARD |
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| IF IT’S NOT 220V, CHANGE POWER BOARD |
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| IF IT’S 220V,CHANGE PFC BOARD |
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5 | DRIVER BOARD IS FAULT ） | E5 | DRIVER BOARD IS FAULT | DRIVER BOARD IS FAULT |
6 | OUTDOOR SENSOR IS FAULT | E6 | 1、CHECK THE SENDOR VALUE | CHANGE SENSOR |
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| 2、POWER BOARD IS FAULT | CHANGE POWER BAORD。 |
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7 | INDOOR MOTOR FAULTY | E7 | ||
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8 | COMMUNICATION SIGNAL IS | E8 | CHECK IF THE COMMUNICATION WIRING IS CONNECTED WELL. | FIX THE COMMUNICATION WELL |
| NOT GOOD |
| CHECK IF POWER BOARD OR DRIVER BOARD IS FAULT | CHANGE THE PCB BOARD |
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