Question about Cybernet Systems CyberPower 625AVR (cp625avr) UPS System

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Wiring Fault light

My computer would not turn on and the "wiring fault" light is lit on the Cyber Power 625AVR. When I bypass the 625 and plug the computer directly to the wall socket, the computer works. Is my surge protector just done for?

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Re: Wiring Fault light

You can download the manual from the link below: The "wiring fault" could be serious, as per manual: "This LED indicator will illuminate to warn the user that a wiring problem exists, such as bad ground, missed ground, or reversed wiring. If this is illuminated, user is advised to disconnect all electrical equipment from the outlet and have an electrician check the outlet to insure proper ground." I would turn the UPS off, unplug all equipment, wait 10 seconds, reset the circuit breaker (if tripped) and turn the unit on. If you still have an issue then it's probably fried! Have you had any thunder storms or electrical power outages recently? Check your house insurance because it may cover a replacement unit. Please update the question & let us know if the information given was useful to you - Good Luck!

Posted on Aug 14, 2007

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1 Answer

Fault wiring light on

Check the wire from your panel to the UPS. Insure your ground is connected correctly or not crossed. Again check your manual it will help you and lead you to the right direction. Also how long have you had it? Maybe UPS is faulty from the factory. Call the manufacture they always help people out on the smaller UPS's.

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Aug 28, 2012 | Cybernet Systems CyberPower 625AVR...

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Wiring fault light on. What it is the problem?

most likely the outlet the unit is plugged into is not grounded, needs to be grounded for it to work properly

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Tone alarm goes off and flashes "overload" and on the back "building wireing fault" is lit up

The "Overload" light and alarm is to tell you that the devices connected to the UPS are drawing more current than the UPS can safely provide with battery backup. You should disconnect a few items, and the alarm and overload light will turn off. The "Building wiring fault" light on the back is to tell you that there's no proper ground wire inside the wall outlet that you're using. These two problems are not related to each other.

Mar 04, 2010 | APC Back-UPS® XS 900 (BX900R) UPS System

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What does wiring fault light mean?

The Site Wiring Fault LED will indicate three status:
• Led On: The site wiring fault function is enabled and a site wiring fault is present.
• Led Off: The site wiring fault function is disabled.
• Led Flash: The Site wiring fault function is enabled and there is no site wiring fault.

When the input power is normal the Site wiring fault LED will flash.
• To disable this function, press the Site wiring fault LED button for 10 sec when the UPS is plugged in to wall power and the UPS is off.
• To enable this function, press the Site wiring fault LED button for 10 sec when the UPS is plugged in to wall power and the UPS is off.

Is the wiring fault light indicator lit? This means that the outlet that the unit is connected to is either not properly grounded, or has reversed wiring. First, try connecting the unit to another outlet. If the unit does not display the wiring fault light in the new outlet you will need to have an electrician correct the problem with the other faulty outlet.If it still displays the wiring fault more troubleshooting will be necessary to determine the cause

Feb 09, 2010 | CyberPower 725SL UPS System

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My wiring fault light is on.

the input power is bad (outlet) it could mean your phase and neutral are backwards. What country are you in? If in USA home depot or lowes sells cheap outlet tester that let you know right away what wire is wrong


Feb 22, 2009 | CyberPower 525SL (CPS525SL) UPS System

1 Answer

Shutting down computer


You need a new battery. A battery store such as Batteries Plus can help you. Many Ace Hardware stores will order one for you and in fact, Radio Shack has the most common battery types in store or can get it for you. If you go through Cyber Power you will pay the highest price.

Hope this helped you.


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Jul 02, 2008 | Cybernet Systems CyberPower 625AVR...

4 Answers

Power keeps going on and off

I have the same problem.
It is most likely the battery.
I tested my battery on a Shumacher trickle charger, and the battery wouldn't hold a charge.
This is a common problem with UPS systems that use sealed lead acid batteries.
The longest life that you can expect with these types of batteries is 5 years MAX.
The battery can be replaced with a Radio Shack 12V/7200mAh Lead-Acid Battery
Model: CNB-GP1270F2 | Catalog #: 23-9030
Here is the link for the UPS users manual.
To replace battery, (unplug AC cord), turn the UPS upside down on floor or workbench.
Remove the 6 deeply recessed phillips screws, then pull the bottom off.
Remove the wire leads from the old battery (pull on the connectors, not the wires). Install new battery (red wire to red or + sign) and replace the bottom and screws. Careful, tighten the screws finger tight (plastic strips easily).
Plug in UPS and you should be good to go.
Hope this helps

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Help with my liebert powersure interactive 1000?

The wiring fault light indicates that the polarity of your power outlet is wrong (positive and negative wires have been inverted) or that the ground is missing/faulty.

This have nothing to do with the configuration of the UPS. Unfortunately (for liability reasons), I have to tell you that the only person who can fix that is an electrician.

Just for testing, try plugging it into another power outlet elsewhere in your house to see if it is any different.

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