you have dE1/2/3 Errors?
When dE Error appears
1.When the drawer was not completely closed ( generation of dE1 Error)
2.When the lock is not normally operated (generation of dE2 Error
3.When the inside door was not completely closed (generation of dE3 Error)
How to fix
1.Push the drawer to the end ( dE1 Error released)
2.Pull out the drawer and then, push it back hard. After that, if the dE2 Error still appears, receive the service.
3.Open the drawer and close the inside door. (dE3 Error released)