LG WM3988H-A Series Manual page 122

Error Codes
Error Codes
If you press START / PAUSE when an error code is displayed,
any error except PE will disappear and the machine will revert to
PAUSE status. In the cases of a PE, TE, or DE error code, if the
error is not cleared within 20 seconds, the machine will be
turned off automatically and the error code will blink on the
display. In the case of any other error code, if the error is not
cleared within 4 minutes, the machine will be turned off
automatically and the error code will blink on the display.
In the event of an FE error code, the machine will be turned off
and will not be restarted.
122 T-49
WM3988