HP PowerTrust A3589A, Manual, Page: 124 / 257

6-8 Chapter 6
Troubleshooting
Alarm Indicators
Continuous tone alarm A continuous tone indicates that the UPS has switched to
Automatic Bypass mode.
Silence Alarm/Test
The Silence Alarm/Test switch is a push-button switch on the front panel. Pressing this
switch silences the alarm if the audible alarm is active. This only cancels the audible
alarm, it does not correct the condition that caused the alarm. The
Attention
and/or
Battery
Power
light remains lit. Any additional alarm conditions will reactivate the audible alarm.
If the audible alarm is not active, pushing this button causes the PowerTrust UPS to
switch to battery operation for 10 to 20 seconds. This tests the On-battery mode of the
UPS.
CAUTION Pushing the Silence Alarm/Test switch as a test may cause the AC power at
the UPS output to fail if batteries are depleted or if there is a problem in the
Electronics Unit. Before performing this test, make certain that the batteries
are fully charged, and that the connected equipment is not in a critical
performance state.
Indicator Cases
Figure 6-1 summarizes the troubleshooting cases presented in this chapter. After you
determine the case that matches the alarm indicators on the UPS, use Table 6-1 to find the
page number where the case is discussed in more detail.
Table 6-1 Troubleshooting Cases
Case Symptom Page #
1 UPS Running on AC Power 6-10
2 Battery Operation Problem 6-10
3 Overtemperature Condition 6-11
4 Bypass Mode 6-11
5 Overload Warning On-Line 6-12
6 Battery Power 6-13
7 Low Battery 6-14
8 Overload Warning on Battery 6-15
9 Failure Shutdown 6-16
10 Overload or EPO Shutdown 6-16
11 Overtemperature Shutdown 6-17
12 Output Disabled 6-18
13 Deeply Discharged Batteries or Non-fatal UPS
Failure 6-19