Charging module failure
The output voltage of the charging module is too high or the IGBT over-current will cause the module to malfunction. It is required to disconnect the AC and restart the module to restore the module to normal.
Unreasonable voltage adjustment may cause the output of the module charging module to be over-voltage. In this case, the voltage adjustment potentiometer needs to be turned to the minimum counterclockwise after the power is turned off (you can hear a slight click of the potentiometer when it is adjusted to the minimum), and then restart Set the output voltage of the module.

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