Advanced Manual

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Troubleshooting

This section describes possible causes and solutions for the

following problems:

• Unit will not turn on.

• WIRING OK indicator LED is not illuminated.

Unit will not turn on

Probable Cause: Input power cord is not connected

properly.

Solution: Ensure the supplied power cord is

connected securely at both ends.

Probable Cause: No power or insufficient power at wall

outlet.

Solution: Ensure the wall outlet has good power

by checking it with a voltmeter, or by

plugging in a known good device.

Note: The unit will not turn on and accept incoming

utility power if the power is outside the acceptable

range.

Note: If the problem is not resolved, contact APC Technical

Support at 888-88APCAV or visit: www.apcav.com.

Probable Cause: Unit is overloaded.

Solution: If the

Overload LED is illuminated, we

recommend that the load be reduced by

unplugging the connected devices on at

a time.