APC SUA1500

[mohsin_apc]

This was originally posted on APC forums on 8/10/2016

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when i slowly cut off the main power from my apc 1500 ups its all 6 light on, beep and go to zero battery show. The batteries are ok when i turned off the ups and on again its shows the correct battery status. 

If the main power suddenly cut off then its working normally but when i slowly cut off the power then it show the problem...  please help!!

[BillP]

This reply was originally posted by Shanon on APC forums on 8/10/2016

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Hello Moshin,

What do you mean by "slowly cut off the power"? 

[mohsin_apc]

This was originally posted on APC forums on 8/10/2016

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means I can cutoff the power through switch for checking. so when i smoothly shutoff the switch then the problem occurred and when I suddenly or quickly shutoff the switch its working normally.

[BillP · Accepted solution]

This reply was originally posted by Dakota on APC forums on 8/17/2016

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The AVR relay is faulty (usually welded). The unit will need to be replaced.