My APC SM C 1500 UPS is Making a Buzzing Noise – What Should I Do?
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CleverWhiskers42
I've got an APC SM C 1500 uninterruptible power supply (UPS) that's started making an intermittent buzzing noise. I'm worried it could be the transformer or something else aging inside it. I found some info on the APC support site mentioning that shielding may fall apart over time. Is this something I can fix myself, or is it better to just replace it? If it's not easily fixable, could I sell it for anything? It has to be around 15-20 years old.
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You should definitely replace it to avoid any fire hazards. It's not worth the risk!
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Just curious, is this still in use at work or is it more of a relic in your home lab?
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It sounds like the inverter might be dying on you. It's better not to take chances with older units like that.
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Honestly, I'd recommend just replacing it. UPS units should generally be budgeted for replacement every few years to avoid issues.
FrugalFinder88: We're a nonprofit, so we really hold onto things as long as possible!
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CasualComet77: That sounds a bit dramatic, don’t you think?