Question about APC Back-UPS RS 1500VA UPS System

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MY apc back ups rs1500 won't stay on when plugged to wall outlet.It starts and does not do the self test and then it keeps oscillating between the two top leds,as you hear the relays switching.If I unplug it the output at the outlets work..

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  • nhecharles Oct 05, 2010

    Yes the relays keep switching continously as I am hearing a clicking noise.

  • nhecharles Oct 05, 2010

    If this is helpful I have opened the UPS and checked the voltage at the batteries and it reads between 24&27 VDC.Also if I disconnect the battery pack the red led,low batt. comes on.

  • nhecharles Oct 05, 2010

    No I recently got it off a good friend with a view to repairing it.

  • nhecharles Oct 06, 2010

    Is it possible to receive a schematic for this model APC Back-UPS?

  • nhecharles Oct 09, 2010

    I have not had the time to continue working on the UPS,I also have a sony TV that I'm working on right now that's taking up my time.As soon as I get back to the UPS I'll let you know.

  • nhecharles Oct 20, 2010

    Hey eagle338 since my last post I have changed out all the major electrolitic capacitors upon the board and the fault still exists.I also wrote to APC about the problem and I was referred to the local agent so I am carrying the unit for them later in the week.If they can repair it that will be very good.I just hope it,s not too expensive.

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Do the relays keep switching continuously?And how do you know this? Do you hear a clicking noise? Please answer these questions so that we can continue troubleshooting.

Sai.

Posted on Oct 05, 2010

  • 2 more comments 
  • eagle338
    eagle338 Oct 05, 2010

    If that is the case then there is a serious problem with the input circuit. You have an overload that is causing the relays to keep clicking. Since it is alternating itself, I strogly believe that the source of the overload is a faulty capacitor(A capacitor has a rapid charge/discharge cycle and I believe the click is happening during the charge cycle). Is the unit under warranty?

  • eagle338
    eagle338 Oct 05, 2010

    The voltage seems to be normal. And like I said its not a problem with the output or the battery. Look for faulty caps in the input circuit. You can visually identify them by means of a crack, a swollen top or if the electrolyte is leaking. Even a tiny hole at the top can cause problems and sometimes its barely noticeable. So you need to look close. Better yet if your multimeter has capacitance measurement capability then you can measure the capacitance and compare it with the actual value thats printed on the capacitor.

  • eagle338
    eagle338 Oct 06, 2010

    It is very hard to find schematics for a UPS but I will have a look around to see if I can find one. Also the input circuit is very easy to locate. The power cable from the mains will run into a PCB which is the power input board. Shouldn't be too hard locating caps on that small board. They look like cylindrical tubes with a X cut at the top.

  • eagle338
    eagle338 Oct 09, 2010

    Ok. No problem.

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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

    Inverter fault


    This unit will require you to Brain dead the whole UPS.
    To see if it is actually a condition that exists with the hardware or if it was just a lock condition.
    Steps:
    1)Power down unit completely
    2)Unplug all batteries
    3)Unplug from wall

    4)Leave unplugged for about 5 minutes or so WITH NO POWER AT ALL.

    5)Plug batteries back in
    6)Plug back into wall
    7) Turn unit back on

    Log into console of UPS and see if the condition returns.
    If it does not return your good to go.

    If the error returns. You have to replace the WHOLE battery pack.

    APC has told me their units are typically good for 4-6 years, after that their units cannot hold the same tolerances as they did when they were brand new.

    Hope this helps.

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    1 Answer

    I have a brand new APC 1000xl I just plugged into the wall and it beeps every second with all the lights changing with each beep.


    You can push and hold the on button to start a self test. Or you can turn off the UPS. Unplug it from the wall. disconnect the batteries and push the on button to reset the logic. if that wont work return it.

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    APC passes its self test but no backup


    More than likely it is the battery. These units simply test the voltage during the self test, and, although not typical, the battery voltage could be good without a load, but fail with a load. 3 years is generally the life span of SLA batteries. Replacement batteries are fairly inexpensive and can be found at: http://batteryinternational.com/ups-batteries-apc-batteries.html

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    Need information


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    I hope this helps.

    Cindy Wells
    (for software, manuals and other information:
    http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=BP650S&tab=models )

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    APC Back-UPS ES 350 - when powered on has a blinking green light Is this normal


    A blinking green light is likely an indication that the internal battery is nearing the end of its usable life cycle. If it's over 3 years old this is likely the case. To test, plug something in to the battery outlets and pull the plug of the UPS from the wall. If you get a short runtime (or none at all) it's the battery. Batteries are under $20 and can be found here: http://www.batteryinternational.com/apc-backups-es-be350u-ups-battery-ups-batteries-f1.html

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    2 Answers

    The battery backup side of the APC does not work how can I fix this?


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    Need charging instructions for apc back-ups es 350


    Take off the bottom cover and make sure the battery is connected (both terminals).
    Plug the unit into a wall outlet.
    Press the power button to turn it on. Leave it plugged in for 8 hours to charge the battery. Do this with nothing plugged into the unit.

    Done.

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    Less back up time


    I found the following on APC's web-site for the APC Back-UPS, this will hopefully fix the problem:
    You can also perform a manual runtime calibration. This could be done if you have changed your equipment load or battery. Stop the PowerChute software from running; disconnect the serial cable between the computer and UPS. Next unplug the UPS from the wall and let it run on battery until it reaches low battery. Once it reaches low battery plug it back into the wall outlet and let it recharge. Recharge time can take up to 4 hours.


    from link: http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_faqid=2819&p_created=1048797826&p_sid=tANR-rxj&p_accessibility=0&p_redirect=&p_lva=&p_sp=cF9zcmNoPTEmcF9zb3J0X2J5PSZwX2dyaWRzb3J0PSZwX3Jvd19jbnQ9NCw0JnBfcHJvZHM9MCZwX2NhdHM9JnBfcHY9JnBfY3Y9JnBfc2VhcmNoX3R5cGU9YW5zd2Vycy5zZWFyY2hfbmwmcF9wYWdlPTEmcF9zZWFyY2hfdGV4dD1yZWNhbGlicmF0ZQ**&p_li=&p_topview=1


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    My APC keeps beeping.


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