Question about APC (BE500U-WEB) (BE500UWEB) UPS System
My apc ups was working fine .Battery would give backup for just about 5 mins .When opening the ups to put a new battery , the cover of the ups touched the circuit and there was a spark and a puff of smoke .After that the ups has completely stopped working and does not even power on . What can be the problem ?
Just check the fuse and mosfets(the one with 3 pin ic's) and replace if necessary
recommended to handle if u r a technician with soldering and component testing knowledge.
remove the battery and re connect after 2 mins
Posted on Sep 13, 2008
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Posted on Jan 02, 2017
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I have the same problem with an apc smart-ups VS 650.
New batteries - charge in batteries is good (also tested under load).
When AC power fails, no power is supplied to PC connectors by the UPS.
UPS self test works fine. UPS does not report any problems via software - Power Management under Windows XP.
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