| serial number | failure phenomenon | possible reasons | solution |
|---|---|---|---|
| 1 | there is no response | fuse failure | open the electric box to find the socket, replace the fuse |
| 2 | no lifting and closing | 1、battery power shortage | 1、charge the battery |
| 2、battery wire connector | 2、check the wiring of the battery , and re connect firmly | ||
| 3、the contactor is burned out | 3、replace contactor | ||
| 3 | the motor is still working if press the stop button | contactor contact sintering | please cut off the power switch, repair the contact of the contactor or replace the contactor. |
| 4 | the oil spill | 1、joint loosening | 1、tightening joint |
| 2、seal damage | 2、replace seal pad |