Troubleshooting102
6.2.1. Faults
When the fault indicator is illuminated, the LCD displays the fault. The faults are described in Table 6-2 below.
Table 6-2 Description of displayed faults
SOUND CAUSE CORRECTIVE STEPS
Battery test fail The battery is bad or weak. Contact technical support.
Rectier fault Rectier fault A rectier failure occurred. Contact technical support.
Inverter overload,
Bypass overcurrent
The UPS is overloaded, Bypass is over
current.
Reduce the load and contact technical support.
Inverter fault The inverter is faulty. Contact technical support.
Battery aged The battery is bad or weak. Replace the battery.
Output short The output connection is short-circuited.
Shut-down the equipment and contact technical
support.
DC bus abnormal The DC bus is abnormal. Contact technical support.
System overtemp
Over-temperature condition in the UPS.
The UPS will transfer to bypass mode.
Reduce the load and contact technical support.
Charger fault The charger is faulty. Contact technical support.
Fan fault At least one fan is faulty. Contact technical support.
DC/DC fault A DC-DC charger failure occurred. Contact technical support.
6.3. Troubleshooting UPS Issues
In the event of an issue with the UPS, refer to Table 6-3 below, to determine the cause and solution. If the
fault persists, contact Vertiv Technical Support. Visit the GXT5 product page at www.vertiv.com for contact
information.
When reporting a UPS issue to Vertiv, include the UPS model and serial number. These are located in several
places for your ease of location:
• On the top panel (rack mount orientation)
• The left side (tower orientation)
• The rear panel
• On the front of the unit behind the front plastic bezel
• On the LCD select Main Menu > About
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