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Mains failure warning and pypass led off

The ups works on inverter but give this warning

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Hi Ibrahim,

Could you provide me the exact model of the Emerson UPS?

Best regards,


Ron

Posted on Feb 02, 2013

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Posted on Jan 02, 2017

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Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
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http://electronicshelponline.blogspot.com/
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http://electronicshelponline.blogspot.com/
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