Hello @Samsung_tenuhh ,
4E means there is an issue with the incoming water supply to your washer. You should check the hoses for kinks, and bends. Also make sure the spouts on both the hot , and cold are turned on fully.
2. Check that there are no kinks or bents in the water hose connected to the machine.
3. Check to see if the water hose mesh filter is not blocked.
Hope this helps! if I solved your issue, please mark as sovled. Thanks, have a great day!