E1 - The elevator has made four attempts to run, but was not able to run
properly, and was not able to get back to floor level. The drive IGBT module
is the likely failure. Also, check for L2 voltage

E2 - A critical fault has been detected with the selector system, examples
being level zone or door zone sensor errors, normal limit sensor errors, or
missing magnets.
The DZ1 and DZ2 relays are also likely suspects. Exchange both relays with
the brake relays and observe fault. You may also see a C2 error in
conjunction with a DZ relay problem.

E3 - A critical fault has been detected with the motion control system,
involving either a communications loss with the drive DSP, or a drive/brake
control relay malfunction.
The BK1 and BK2 relays are likely suspects. Exchange both relays with the
DZ relays and observe fault.