A: 1. The power module reported this fault. After pulling out the module, do not plug it back into the cabinet. If you do this, the machine will explode and cause a more serious fault.
2. During the warranty period of this large project, it is recommended to conduct a follow-up every three months to understand and help customers maintain the machine. Because when the customer replaces the battery and closes the switch, the machine reports uneven current, which may be caused by the customer's unfamiliarity with the operation. It is necessary to minimize the mistakes of the customer's operation. The loss will be very large if there is a fault in multiple units.