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Troubleshooting
Troubleshooting your PurePower APS
This section contains troubleshooting information and an explanation of APS alarm conditions.
Condition Possible Cause Resolution
Condition Possible Cause Resolution
The LED indicator lights Power cord not connected Check connections
are not on or APS won’t start Wall outlet is faulty Have outlet checked and repaired
APS Fuse or breaker blown Clear Cause and Replace Fuse
APS Fuse or breaker blown Clear Cause and Replace Fuse
Amber Fault LED illuminated Receptacle ground wiring fault, rewire receptacle
Short circuit on output Remove load, repair short
Internal fault Notify PurePower Service
Utility LED off, Battery mode indicated Utility power failure none
APS is not connected to wall Check Input power cable
Bypass indicator is lit APS in bypass mode
Check LCD message for cause.
Your components have been transferred
to utility power. Power filtering and
surge suppression are active.
APS shuts down Overload or over temp condition Reduce load, check for obstruction and
Utility failure and batteries depleted APS will restart when utility returns
Battery % indicator low Battery fully discharged Allow batteries to charge for 24 hours
then hold On/Off button for 1 secs.
Battery failure Replace the batteries or contact your
Internl temp over 65 degress C. Internal temp too high Turn off and unplug APS, allow
to cool. Check for blocked vents
and that airflow is not restricted. If
problem persists, contact your dealer.
Overload message, Power demand exceeds Turn off and unplug APS. Wait 5
APS turns off output APS overload capacity* seconds, restart APS. If problem
persists, remove components from
APS until wattage is within APS rating.
Amplifier startup demands Some amplifiers have very high
A higher wattage APS may be required.
* The APS is capable of supporting up to 110% of its rated capacity for 2 minutes and up to 150% of its rated capacity for up
to 30 seconds. Turn on multiple high power amps one unit at a time.