Troubleshooting

Common problems and solutions

The unit will not turn on

Probable Cause

Solution

There is no input power, or insufficient input power from the wall outlet.

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

 

 

 

 

Power is not supplied to some outlets.

Power to the CONTROLLED outlets has intentionally been

 

 

turned off.

 

 

 

 

The CONTROLLED outlets are not supplying power,

The MASTER Outlet threshold may be incorrectly set.

 

even though the master device is not in sleep mode.

 

The Overload indicator is illuminated

 

Probable Cause

Solution

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

Solution

The wall outlet polarity is reversed.

The neutral wire is overloaded.

The earth ground is not connected at the wall outlet.

Contact an electrician to inspect the building wiring.

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 or DOWN several times. The LEDs should illuminate. If they do not illuminate, contact APC Technical Support.

APC A/V G-Type Rack Power Filter: Troubleshooting

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APC G50B-20A2 Troubleshooting, Common problems and solutions, Unit will not turn on, Overload indicator is illuminated