2 Because the use of the juice cup requires the plug to be inserted into the power supply to work, if the plug is not inserted to the end, it can not be connected to the power supply and can not work normally.
3 If the plug can not be inserted, you can first check whether the plug is inserted in the opposite direction, or check whether the plug is damaged, if not, you can try to use some tools to clean up the dirt on the jack and plug.
Not enough because the juice cup needs to be driven by electricity to juice the fruit or vegetables, if not flushed into the electricity, you can not use electricity to drive the juice cup, can not achieve the purpose of juice.
In addition, the failure to flush power may be due to a problem with the line or plug, it is recommended to check the line or replace the plug before using the juicer.