What to do if my Xtreme TX91 UPS shows fault code 01, 02, 03, 04, 11, 12, 13, 14,1A, 21, 24, 35, 36, 41, 42 or 43?
- JJames AcostaAug 13, 2025
If fault code 01, 02, 03, 04, 11, 12, 13, 14, 1A, 21, 24, 35, 36, 41, 42, or 43 appears on the LCD of your Xtreme UPS and the alarm is beeping continuously, this indicates an internal fault. In this situation, contact your dealer.