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August 4th, 2023 15:00

Dell K788N 1000w UPS not turning on

I got an old Dell UPS from work. It won't turn on with or without the battery installed. I have left it for several hours and the battery pack is measuring about 8 volts. I've tested the fuses and they appear to be fine. I don't see any bulging items on the circuit board. Is the UPS just dead?

2 Posts

August 4th, 2023 16:00

Nothing is connected. Nothing shows on the display. I have a feeling its toast.

4 Operator

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2.2K Posts

August 4th, 2023 16:00

Do you have connect something to the UPS?  Whats on the display?

Regards,
Joerg

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5.1K Posts

August 6th, 2023 15:00

Hello this may help:

https://dell.to/3DKF7SN

 

page 17 Connect the internal battery connector

 

page 25   Press the button on the UPS rear pane

 

But if you don’t see anything on the LCD, as you say yourself, you might just need a new one I’m afraid.

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