They are funny that way…. 😊 Regards,
David Coudron From: AF <af-boun...@af.afmug.com> On Behalf Of ch...@wbmfg.com Sent: Tuesday, September 22, 2020 10:24 AM To: af@af.afmug.com Subject: [AFMUG] OT sunday project So, my super duper modular rectifier modular inverter office UPS was not working. It would run for a little while and then have an inverter failure. Swapping cards, narrowing it down to the control card... but I kept noticing low voltage. So, out of an abundance of caution I actually measured the batts. 43 volts. Hmmm. Rectifier light is on. Oh yeah... there are some circuit breakers behind a panel that you open on the front. Turns out, that you need to actually turn the charger ON to make the system work.
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