Question about APC Conext 900VA (cnb900) UPS System

1 Answer

Conext 900 AVR. Won't turn on, no lights. Power still out of the surge protected outlets, but no power out of the battery protected outlets. Opened it up, don't see anything damaged, using a meter checked the overload breaker and verified that it is not interrupting power. No voltage is getting to the fuses. I'm guessing the inverter has failed, but don't have a wiring diagram to verify what voltage should be where. Any advice?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I had the same model/symptoms (no lights on the front panel). I had a compatible, though smaller, battery from a Verizon Fios backup unit, and I tried that in the UPS--it worked. That confirmed that I just needed a new battery.

Posted on Jan 23, 2016

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

edwardjohn
  • 2 Answers

SOURCE: Did my Conext 900AVR die or is it just a battery?

I took my Conext CNB900 to Batteries Plus and they put in a new battery and checked the unit and found that the new battery solved the problem.

Wilson in Houston

Posted on Jan 23, 2009

  • 55 Answers

SOURCE: APC Smart UPS 1500 will not start.

It could be that the cable to the front-panel got damaged during the battery replacement.  After all these years you would think APC would improve that aspect of their design.  All I can suggest is inspecting the cable and where it connects to the front panel.

Posted on Apr 26, 2009

  • 1 Answer

SOURCE: Overload on ADP Back-UPS XS 900 with trivial load

Replace 24v dc small fan, it does not work!
You can buy a new one here
https://www.alliedelec.com/Search/ProductDetail.aspx?SKU=5920640&MPN=OD4010-24MB&R=5920640&SEARCH=5920640&DESC=OD4010-24MB

Posted on May 04, 2009

skipsinclair
  • 152 Answers

SOURCE: APC ES-350 won't turn on; all I see is a blinking light.

Try looking for a small circuit breaker on the side that says "press to reset" - you could have tripped it accidentally when you unplugged the iPod.  Also, try pressing and holding the UPS power switch for 10-15 seconds.  That should force a power on as well.

Posted on May 27, 2009

  • 15 Answers

SOURCE: "On Battery" Alarm Sounds when Power Available.

if this comes sometimes and goes, this means that the power to ups is sometimes deviating from the specific ups input range, hence the ups is rejecting it. mesure the input voltagesand frequency with a multimeter and check whether they match the specified ones in the ups manual. aslo with some ups there are switches that you use to set the input voltages or number of phases in the ups input. check the manual to see whetther your ups has such.

Posted on Oct 25, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Which are the surge protected outlets on a cyperpower 1000AVR?


The surge protected outlets should be identified on the top of the unit. If not identified, all outlets may have surge protection.

Jan 27, 2015 | CyberPower Cyber Power OFFICE POWER AVR...

2 Answers

Apc hi800sq


follow this steps and fix it. God bless you
Plug the battery backup into a working electrical outlet. If the battery backup turns on when the power button is pressed, then the problem may be that the previous electrical outlet is faulty. Proceed to step three. If the battery backup doesn't turn on, proceed to step two.
  • 2 Reset the circuit breaker on the battery backup. APC battery backups have a labeled circuit breaker button located on the unit near the phone line, fax line, USB, network and coaxial cable inputs. Press the button to reset the circuit breaker. Power on the battery backup by pressing the power button. If the battery backup powers on, proceed to step three. If the battery backup doesn't turn on, proceed to step six.

  • Read more: http://www.ehow.com/how_7266444_troubleshoot-apc-battery-backup.html#ixzz2lwOvPO75
  • 3 Determine if the battery backup is charged and providing battery power. With the battery backup on and plugged into a working electrical outlet, plug a computer monitor into one of the battery backup outlets labeled "battery backup plus surge protection" on the battery backup. (APC power supplies have some outlets that provide only surge protection while the other outlets provide surge protection plus battery backup.) Turn the monitor on. Unplug the battery backup power cord from the wall outlet. If the monitor remains on, the battery is holding a charge, supplying electrical power and the battery backup is working properly. If the monitor goes off, proceed to step four.
  • 4 Charge the battery. Plug the battery backup into an electrical outlet and allow the battery to charge for 16 hours. This will fully charge the battery.
  • 5 Test battery charge. Once the battery is fully charged, repeat step three. If the monitor stays on when power is interrupted to the battery backup, the issue is solved and the problem resulted from an incompletely charged battery. If the monitor turns off when power is interrupted, the battery within the battery backup is faulty and needs to be replaced.
  • 6 Replace the battery backup unit. The unit itself is faulty. If the battery backup is under warranty, contact APC to request a replacement.
  • Nov 28, 2013 | Computers & Internet

    1 Answer

    The UPS in this office is out of order, message that appear on screen is 'UPS V OUT LIMITS' and 'Battery critical'


    follow this steps and fix it. God bless you
    Plug the battery backup into a working electrical outlet. If the battery backup turns on when the power button is pressed, then the problem may be that the previous electrical outlet is faulty. Proceed to step three. If the battery backup doesn't turn on, proceed to step two.
  • 2 Reset the circuit breaker on the battery backup. APC battery backups have a labeled circuit breaker button located on the unit near the phone line, fax line, USB, network and coaxial cable inputs. Press the button to reset the circuit breaker. Power on the battery backup by pressing the power button. If the battery backup powers on, proceed to step three. If the battery backup doesn't turn on, proceed to step six.

  • Read more: http://www.ehow.com/how_7266444_troubleshoot-apc-battery-backup.html#ixzz2lwOvPO75
  • 3 Determine if the battery backup is charged and providing battery power. With the battery backup on and plugged into a working electrical outlet, plug a computer monitor into one of the battery backup outlets labeled "battery backup plus surge protection" on the battery backup. (APC power supplies have some outlets that provide only surge protection while the other outlets provide surge protection plus battery backup.) Turn the monitor on. Unplug the battery backup power cord from the wall outlet. If the monitor remains on, the battery is holding a charge, supplying electrical power and the battery backup is working properly. If the monitor goes off, proceed to step four.
  • 4 Charge the battery. Plug the battery backup into an electrical outlet and allow the battery to charge for 16 hours. This will fully charge the battery.
  • 5 Test battery charge. Once the battery is fully charged, repeat step three. If the monitor stays on when power is interrupted to the battery backup, the issue is solved and the problem resulted from an incompletely charged battery. If the monitor turns off when power is interrupted, the battery within the battery backup is faulty and needs to be replaced.
  • 6 Replace the battery backup unit. The unit itself is faulty. If the battery backup is under warranty, contact APC to request a replacement.
  • Nov 28, 2013 | MGE NOVA AVR 1100VA Tower UPS 81111 UPS...

    2 Answers

    Denon AVR-1908 won't power on


    Are you getting a standby light at all? Is it flashing? Do you here a click when you plug the unit in? If the answer is no to all of these then you blew a fuse. If you do have soome sort of standby light, then your set is in protect mode. More than likely for a blown channel. If no lights, but you ar egetting a click, you could have a bad transformer. Use a DVM and see if it is open or not. Good luck

    Aug 23, 2012 | Denon AVR-1908

    1 Answer

    Replaced conext ups cnb325 battery but power indicator light does not come on.


    There is a solder problem on some units. Remove the battery and the 4 screws, tilt the lower panel away, and let the circuit board drop out onto the workbench. WATCH FOR THE TRANSFORMER, it is not fastened. Inspect for a loose solder connection, and if you find it, re-flow the solder. Re-assemble and plug into the AC current to charge the battery.

    Jun 01, 2012 | APC Conext UPS System

    1 Answer

    Plug it in and nothing happens. no lights or noise. The two surge protection outlets draw power, the other six don't.


    Unplug the surge protector (and all units plugged into it) and take it apart - you'll see how the outlets are connected to provide a closed circuit when on. Make sure all connections are secure and carefully put the unit back together.
    You should be able to use all units plugged into it.
    Please let me know if you need further assistance.
    carsandcomps,
    Guru, Premium Expert @ Fixya.com

    Oct 02, 2010 | Belkin PureAV Home Theater Battery Backup...

    1 Answer

    Belkin f6c750-avr repair / Testing


    You could be correct on the transformer. I'm kinda leaning towards a bad cell in the battery. Sounds like it will need replacing.

    Sep 03, 2009 | Belkin (F6C750-AVR) (BELF6C750AVR) UPS...

    2 Answers

    UPS issues with bad power


    First, most of the UPS sensitivity can be adjusted. Setting a higher sensitivity will make the UPS compensable much faster if the current goes to high to too low thus always providing a good power quality to the equipments. For example, on a BackUPS RS the low level can be configured from 94V to 104V and the high level from 126V to 136V. An entry-level UPS such as the APC BackUPS ES will switch to battery mode as soon as the power goes out of the sensitivity range. On the other hand, a high-end UPS for workstation like the APC BackUPS RS has a feature called Automatic Voltage Regulation (AVR) that compensate at some extent without requiring the battery; this makes the battery last longer before needing to be replaced.

    Second, most of the UPS have "Battery Protected" and "Surge only" outlets. Make sure that the computers are connected to the "Battery Protected". The "Surge only" outlets will only protect from parasites or surges like a thunder storm. They should be used for less important stuff like a desk lamp or devices with high demand peek such as a laser printer.

    Third, the use of a power bar connected to the "Battery Protected" side should not have any impact as long as it is not overloading the UPS. Personnaly, I have a power bar connected to both my UPS.

    Feb 06, 2008 | APC Smart-UPS UPS System

    Not finding what you are looking for?
    APC Conext 900VA (cnb900) UPS System Logo

    Related Topics:

    787 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top APC Computers & Internet Experts

    Shawn DuRee

    Level 3 Expert

    355 Answers

    Cindy Wells

    Level 3 Expert

    5100 Answers

    Electro Med Services...
    Electro Med Services...

    Level 3 Expert

    6694 Answers

    Are you an APC Computer and Internet Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...