4e code

Here is what the tech sheet says about your error codes.
4E -Your washer has tried to fill but was unsuccessful.Make sure the water faucets are open all the way.
Check for bent hoses.
Check the inlet screens on the hoses. If you are using a Flood Safety Device, please remove the device and connect the water hoses directly to the unit.Check if the hot water supply hose is connected.You must connect the hot water supply hose because hot water is supplied by the Auto Temperature Control (A.T.C.) function if the temperature of the cold water is lower than 59°F.When washer displays “4E”, washer do draining for 3 minutes. At this time, Power button is invalid

I would check that it is getting both hot and cold. Then I would check the pressure switch and hose. The pressure switch and hose is how it determines the amount of water it is getting. This would cause the error code if one of them are damaged.

I have attached a video as well that will help you.

4E error is a Water Supply Error. To solve, please check the following:

1. Check if the water tap connected to the washing machine is open to full pressure .
   1. Check if there are no kinks or bent hose in the water line connected to the washing machine.
   2. Check if the water inlet hose mesh filter is not blocked with lime and calcium deposits.
      Note: You may need to clean the water hose mesh filter twice a year.

Cleaning the water hose mesh filter:
1.Turn off the water source that supplies water to the washing machine.
2. Unscrew the hose from the back of the washing machine.
3. With a pair of pliers, gently pull out the mesh filter from the end of the hose and then rinse it under.
4. Water until clean. also clean the inside and outside of the threaded connecter.
5. Push back the filter into its correct place.
6. Screw the hose back to the washing machine.

Hope this helps
Matt Ace technician