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Section 5. Troubleshooting
Note: If the Power Inverter causes interference with a television while ON-BATTERY,
move the television at least 3 feet away from the Inverter.
Use the information provided in Tables 1 and 2 to diagnos Power Inverter problems. If the problem cannot be resolved using the
information provided in this manual, contact APC Technical Support.
Table 2. Power Inverter Troubleshooting
Manual Bypass - In the event of an Inverter failure or dead battery condition, the Inverter can be disconnected from the mains and
power restored to the circuit by completing a Manual Bypass (Figure 12) of the Inverter, as follows:
Remove the Wiring Management Kit from the Inverter. Disconnect all wires connected at the Inverter rear panel. Connect the wire
from the Input socket to the wire from the Output socket.
Page 12
Problem Cause Corrective Action
Inverter fails to operate when
mains power is turned on, or
during a utility power failure.
Disconnected battery.
Power is off at the Mains.
Inverter HOME/AWAY switch in
the AWAY position.
Dead batteries.
Inverter rear panel Push to Reset
circuit breaker has tripped.
Improper wiring installation or
loose connection.
Ensure batteries are connected as defined in this
manual.
Turn on power at the Mains.
Set switch to the HOME position.
Inverter failed to charge batteries, or batteries were
allowed to completely discharge. Replace batteries. If
replacing the batteries does not fix the problem,
contact APC Technical Support.
Reset the circuit breaker by pushing it fully inward
until it stops; release the circuit breaker.
Ensure wiring is as described earlier in this manual,
and that all connections are secure.
Computer load reboots when
inverter switches to ON
BATTERY.
Inverter transfer time too slow for
computer load.
For computer-type loads, a separate battery back-up
(UPS) should be used, as the 60 millisecond transfer
time is inadequate, and will cause the computer to
reboot.
Inverter faults. Inverter drops the load.
Inverter is overloaded.
Inverter may have an internal failure. If this happens,
the unit can be disconnected from the mains by
completion of a Manual Bypass (see Manual
Bypass).
Turn off some loads connected to the Inverter until
the OVER LOAD LED is no longer lit