I have an APC Smart-UPS 1400 (model SU1400BX120) that has no indication of power whatsoever. When plugged into a known-good AC source, there are no indicator lights, audible tones, and no response to the power/test switch. The battery measures at a whopping 0.33 VDC, and the rear-mounted "Overload Protector" currently measures as a short (un-tripped), with continuity confirmed from both blades of the power cord to the circuit board (and ground to the equipment case). No other visible fuses were seen on the circuit board, or elsewhere in the case. All other cable connections have been checked & verified.
Age and past history of this unit are unknown, as I am recently filling a one-deep position, with no notes whatsoever left by my predecessor as to the state or condition of numerous pieces of equipment left laying around.
Before I give this thing the heave-ho, other than replacing the most-likely spent batteries, is there anything else that would/could be causing a complete "no power" indication that I can check?
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For starters, have you tried APC website? Plenty of manuals there man. Check it: http://www.apc.com/search-apc/ww/en/relevance/10_1/Product%20Information;;7B0CB5EA-CEC6-4E31-B9A6-51E4DCFADB54/all?search_text=APC%201400%20pro.%20Smart%20Rack%20mount%20120%20v.%202000%2F3000%20MR%20U3&search_type=new&filters=
greg milton, Hi, Did you get the top cover off of the "1400" battery back-up? How old were the batteries in the unit? My APC 1250 has two 12v 18ah units inside. It's best to replace batteries every 3 to 5 years! 12fixlouie
Depending upon how old your UPS is, it may need new batteries. To get help, you will have to contact APS or if you have a local Batteries Etc or other battery retail store that can check the unit for you. Without checking the battery condition and running diagnostics, there is not a lot that can be done to give you a better solution.
Hope this helps.
Let me know what you find out. Thanks.
The basic design hasn't changed since day one...there maybe a few more bells and whistles now, If the unit is working fine...change the battery...and use the unit...BTW..just for your info large UPS'S are kept in service for 10-15 years or longer...hope this helps
Hello Dear Specialists I have a problem with the APC Smart-UPS smart 1000VA: when I insert the power plug in the wall outlet in one ups , indicate the AVR Boost ups regulating low AC voltage, when I measuring the AC city power voltage that is 207v .whey this ups is not working about the AC low voltage? ,but it should be work from (170v ~ 230v) AC input volte.please solve this problem, which element of AVR from the ups is failed or wrong and give me free circuit diagram low & high AVR and charger and inverter circuits. thanks allot
Batteries in the UPS typically last 3 to 5 years and it depends upon several factors. including the number of times the unit must go on battery power and environmental conditions. There are usually several batteries in the UPS and while the battery voltage may show 13 volts, this may only be a float charge/voltage and a true indication of the battery voltage and condition requires the batteries to be tested under a load. There maybe one battery in a set of batteries that is faulty and causes the whole battery system to fail and indicate a battery fault. The other possibility is the charging circuit may be faulty.
First cheack the supply if supply is present the then cheach the cable which is connected between power supply and the ups if this things are working properly then open the ups and then go to the power supply section by tracing the ip put from the power supply switch you will find the fuse over there
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