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Troubleshooting
5-2 HP Uninterruptible Power System T2200 XR Models User Guide
Troubleshooting After Startup
If problems occur after starting the UPS, refer to Table 5-2 for possible causes and suggested
actions.
Table 5-2: Troubleshooting After Startup
Symptom Possible Cause Suggested Action
An audible alarm
sounds.
An alarm condition exists. Identify the red LED associated
with this alarm condition. Check this
troubleshooting guide to determine
the cause of the alarm.
The Utility LED ( ) and
On Battery LED ( ) are
flashing red.
The utility voltage is too high. The utility voltage is higher than the
UPS operating range. The UPS
switches to battery power. If this
happens repeatedly, update the
configuration.
Contact a qualified electrician to
verify that the utility power is
suitable for the UPS.
The Utility LED ( ) and
On Battery LED (
) are
flashing red.
The utility voltage is too low. The utility voltage is lower than the
UPS operating range. The UPS
switches to battery power. If this
happens repeatedly, update the
configuration.
Contact a qualified electrician to
verify that the utility power is
suitable for the UPS.
The Utility LED ( ) and
On Battery LED (
) are
flashing red.
The utility frequency is out of
tolerance.
Contact a qualified electrician to
verify that the utility power is
suitable for the UPS.
The Utility LED ( ) is
flashing red.
The utility input voltage is
outside the +20% to -30%
nominal range.
If this happens repeatedly, check
the input voltage and reconfigure
the UPS.
Contact a qualified electrician to
verify that the utility power is
suitable for the UPS.
The Utility LED ( ) is
flashing green and the
UPS is in Standby mode.
The utility power is within the
acceptable range and the output
is off.
Press the On button.
The UPS frequently
switches between utility
and battery power.
There are variations in utility
power.
The utility voltage is frequently
outside the UPS operating range.
Update the configuration.
Contact a qualified electrician to
verify that the utility power is
suitable for the UPS.
continued