Xtreme TX90 6kVA - Error Code Er03

Xtreme Power Conversion Corporaon
TX90 6kVA & 10kVA Service Manual
Page 40
Uninterrupble Power Supply
Error Code Er03
Denion: The UPS is in 3rd stage so start procedure, but the DC bus voltage can not reach to ancipave charg-
ing voltage within 30 seconds.
Flow Chart