APC 120V User Manual
627.92 Kb


Common problems and solutions

The unit will not turn on


Probable Cause






There is no input power, or insufficient input power

Use a voltmeter to check the output of the wall outlet. Use a


from the wall outlet.

device that is known to work properly to check the outlet.



Note: The unit will not turn on if the input utility power is out



of the acceptable range.





A circuit breaker has been tripped.

Check the building circuit breakers and the unit’s circuit



breaker. If the circuit breaker on the unit has been tripped, the



center post will protrude from the unit. To reset the breaker,



push the center post into the unit. If it trips again, unplug one of



the components plugged into the unit and reset the breaker.



The unit is rated for 15 Amps, however, the National Electric



Code (NEC) dictates that any home circuit should not be



loaded to more than 80% of its rating.



Note: If the breaker is tripped again after trying this solution,



contact APC Technical Support.




The Overload indicator is illuminated






Probable Cause


The unit is overloaded. The overload LED is flashing. The Overload LED on the front of the unit will illuminate red if the unit is overloaded. Reduce the load by disconnecting one or more components from the back of the unit. When the load is below 95%, the LED will stop flashing.

The Wiring OK indicator is not illuminated

Probable Cause




• The wall outlet polarity is reversed.

Contact an electrician to inspect the building wiring.

• The neutral wire is overloaded.


• The earth ground is not connected at the wall outlet.

WARNING: Do not operate the unit if any of these conditions


exist. The unit may not be providing surge protection.



The unit is on, but none of the LEDs are illuminated.

Push UP orDOWN several times. The LEDs should illuminate.


If they do not illuminate, contact APC Technical Support.



Contact APC APV Technical Support

For technical support, go to www.apcav.com or call1-888-88APCAV(1-888-882-7228).


APC A/V G-TypeRack Power Filter: Troubleshooting