Question about APC Back-UPS XS900 (BX900) UPS System

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Overload LED lit, constant warning tone, no load on unit. Is there an internal component available to repair this unit?

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I have seen this caused by a defective battery. Disconnect the battery and reconnect to AC and see if the overload symptom disappears.

Lou

Posted on Sep 12, 2009

  • Louis Davidson
    Louis Davidson Sep 12, 2009

    I have seen this caused by a defective battery. Disconnect the battery and reconnect to AC and see if the overload symptom disappears.



    Lou

  • Louis Davidson
    Louis Davidson Sep 12, 2009

    I have seen this caused by a defective battery. Disconnect the battery and reconnect to AC and see if the overload symptom disappears.



    Lou

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1 Answer

Overload error light is lit up, but nothing is plugged in.


would you tell me what is the model number of the UPS

May 31, 2015 | Computers & Internet

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Error light in my apc smart ups sc 1500va ups


1. Four beeps every 30seconds (On Battery LED will be illuminated)
This alarm indicates that the Battery PowerSupplied outlets are now supplying battery power as opposed to power from theutility. If the UPS determines that the input utility power is unsafe for yourcomputer equipment, the UPS will switch to battery power.
Note: Ifthe power disturbance is brief, you may only hear one or two beeps.

2. Continuous Beeping (On Battery LED will beilluminated)
This alarm indicates that a Low Batterycondition has been reached and that the UPS will soon shutdown. Once the UPStransfers to On Battery operation, it can only stay on battery for a limitedamount of time. The UPS will sound this alarm about two minutes before thebatteries are totally exhausted. Once exhausted, the UPS will shutdown and turnoff its output power to your equipment. If you hear this tone you shouldimmediately shutdown your computer to prevent data loss or corruption.

3. Continuous Beeps for 30 seconds (BackUPS OFFICE 250 and 280 ONLY)
This alarm indicates the unit has detected anOverload condition after it has performed a self-test during start-up.

4. Continuous Two-Tone Beep
This alarm indicates a severe Overload wasdetected while the unit was on-battery operation. This tone will continue tosound until the unit shuts down.

5. Continuous Tone (On Battery LED will beflashing)
This alarm indicates that the battery-poweredoutlets are overloaded.

6. Continuous Tone (On Line and On BatteryLEDs flashing) Back UPS OFFICE 350,400, and 500 ONLY
This alarm indicates that an internal UPS faulthas occurred.

Dec 08, 2011 | APC Smart-UPS SC 1500VA UPS System

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I connected 8, 100Ah battery with APC 2.2KVA inverter, now it doesnt give correct battery indication and keep producing beeping noise, whats the problem?


Continuous Beeping (theamber On Battery LED will be illuminated)
This alarm indicates that the UPS has reached aLow Battery condition and will soon shutdown. The UPS can only operate onbattery for a limited amount of time. In order to protect the unit's batteriesfrom discharging too much, the UPS will shutdown and turn off its output. Towarn you that the unit will soon shutdown, the UPS will sound this alarm 2minutes before actual shutdown. With optional Powerchute Plus software, 2minutes can be changed to 5, 7, or 10 minutes to give you more of a warning ofimpending shutdown. If you hear this tone, you should immediately gracefullyshutdown your operating system to prevent data loss or corruption.
Note:This graceful shutdown will occur automatically if Powerchute PLUS software isbeing used.

Constant, Solid Tone (the red Overload LEDwill be illuminated)
This alarm indicates that the UPS has detectedan Overload condition. If this alarm is sounded, try removing non-essentialequipment. The alarm will remain until the load is reduced. To determine ifyour UPS is capable of handling the equipment you want to protect, visit APC'sSizing Guide at www.apcc.com/sizing.

Continuous Beeps for One Minute; RepeatedEvery 5 Hours (Replace Battery LED will be illuminated)
This alarm indicates that the UPS has failed itsSelf-Test of the battery. The unit will continue to sound this alarm until theunit passes the test. Try to let the unit charge for a few hours and thenperform another Self-Test (Press and hold the on/off button until the second'chirp', then release). If it fails and the unit is still in-warranty (twoyears from date of purchase), then contact APC. If the unit fails and its outof warranty, then order a replacement battey cartridge through your reseller,distributor, or from APC's web site.

Apr 21, 2011 | APC Computers & Internet

1 Answer

My lacie dvd burner is not powering on, all plugs have been checked and recheck


When I had a similar problem, I noticed that the green LED on the separate power unit was flashing; on unplugging the cable to the LaCie unit, the LED remained on continuously. This suggested that the flashing LED was an overload warning. A quick check on the LaCie unit power input connector showed a short-circuit across the 12V input pins. Checking (very carefully) inside the unit revealed an antisurge diode P6KE15A connected directly across the 12V input. Replacing this diode cured the problem. Note that unsoldering this diode and replacing it is a delicate operation, as there are durface mount components close by.

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1 Answer

Overload led constantly blinking


The Overload relay may be faulty. Replace the overload relay. Althernatively turn in the UPS to an expert since there is life power in the circuits.

May 20, 2010 | APC (C73351) UPS System

1 Answer

About ups


If you remove all of the equipment plugged into the UPS, is it still lit?

Are you sure this is an overload light, and not a replace battery light? If this is a smart-ups unit, the overload light is next to a picture that looks like an unbalanced scale. The replace battery light is a square with an X through it.

If it is, in fact an overload light that is lit, and it stays lit with less than the maximum load on it, or without any load on it, then you have a critical internal failure and the unit needs to be replaced or repaired.

You can also find your user manual here for more information: http://www.refurbups.com/Knowledge-Base

Mar 29, 2010 | APC Smart-UPS 1500VA Shipboard...

1 Answer

Strange noise comes out from the ups after a power cut


The Back-UPS Office unit has five different tones or alarms:

1. Four beeps every 30 seconds (On Battery LED will be illuminated)
This alarm indicates that the Battery Power Supplied outlets are now supplying battery power as opposed to power from the utility. If the UPS determines that the input utility power is unsafe for your computer equipment, the UPS will switch to battery power.
Note: If the power disturbance is brief, you may only hear one or two beeps.

2. Continuous Beeping (On Battery LED will be illuminated)
This alarm indicates that a Low Battery condition has been reached and that the UPS will soon shutdown. Once the UPS transfers to On Battery operation, it can only stay on battery for a limited amount of time. The UPS will sound this alarm about two minutes before the batteries are totally exhausted. Once exhausted, the UPS will shutdown and turn off its output power to your equipment. If you hear this tone you should immediately shutdown your computer to prevent data loss or corruption.

3. Continuous Beeps for 30 seconds (Back UPS OFFICE 250 and 280 ONLY)
This alarm indicates the unit has detected an Overload condition after it has performed a self-test during start-up.

4. Continuous Two-Tone Beep
This alarm indicates a severe Overload was detected while the unit was on-battery operation. This tone will continue to sound until the unit shuts down.

5. Continuous Tone (On Battery LED will be flashing)
This alarm indicates that the battery-powered outlets are overloaded.

6. Continuous Tone (On Line and On Battery LEDs flashing) Back UPS OFFICE 350, 400, and 500 ONLY
This alarm indicates that an internal UPS fault has occurred.

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2 Answers

Overload LED lit, constant warning tone, no load


you may have to many things plugged into the ups, it is not good to plug a power bar into one of the outlets of one of these as you are OVERLOADING the device with more power than it can produce

Oct 21, 2009 | APC Back-UPS XS900 (BX900) UPS System

1 Answer

Prosine 2.5 fault 195


This internal fault code can mean so many things, but basically it more than likely has some internal parts that the smoke is no longer inside. They can be repaired however, email sunyout@gmail.com to discuss further.
Thanks, Bob

Oct 20, 2008 | Inverter Electronics - Others

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