Repair instructions for APC Back-UPS RS500
I have two APC Back-UPS RS500 units which failed at charging the battery.
It was a capacitor which failed on both of them and I have also found out that this failure is rather common for this UPS. Here is my description on how to repair them. If you have a similar problem that the UPS seems to work OK with a new and charged battery connected, but fails after a short time (days) with the 'replace battery' light on, then this could help you. http://www.heime.org/Lists/Posts/Post.aspx?ID=17 Stig Vidar Hovland |
Repair instructions for APC Back-UPS RS500
"Stig Vidar Hovland" wrote in message
... I have two APC Back-UPS RS500 units which failed at charging the battery. It was a capacitor which failed on both of them and I have also found out that this failure is rather common for this UPS. Here is my description on how to repair them. If you have a similar problem that the UPS seems to work OK with a new and charged battery connected, but fails after a short time (days) with the 'replace battery' light on, then this could help you. http://www.heime.org/Lists/Posts/Post.aspx?ID=17 Stig Vidar Hovland Sir - Did you notice any leakage around the capacitor? In other words, is this another possible "bad capacitor" fault? http://www.badcaps.net/ http://news.com.com/PCs+plagued+by+b...3-5942647.html http://cquirke.mvps.org/badcaps.htm http://www.pcguide.com/vb/showthread.php?t=25482 http://home.earthlink.net/~doniteli/index27.htm http://searchwincomputing.techtarget...204128,00.html http://www.geek.com/news/geeknews/20...0207018535.htm http://en.wikipedia.org/wiki/Capacitor_plague w9gb |
Repair instructions for APC Back-UPS RS500
"w9gb" wrote in
: Did you notice any leakage around the capacitor? In other words, is this another possible "bad capacitor" fault? No leakage. I think the failure happens because of the combination of high temperature over a long time and low quality of the capacitor. Stig Vidar Hovland |
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