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Constant green light with noise

APC UPS for Home and Office Forum

Schneider Electric support forum for our APC offers including Home Office UPS, Surge Protectors, UTS, software and services and associated products designed to share knowledge, installation, and configuration.

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BillP
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216

Constant green light with noise

This question was originally posted by Lloyd on APC forums on 1/3/2016


hello, having a problem with my apc ups Es 750. It's a constant green light with a strange noise. Not the same noise when the battery need to change. Battery does need replacement. But when I plug it in I get a green constant light and the noise. The model number is BE750BB


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BillP
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216

Re: Constant green light with noise

This reply was originally posted by Lloyd on APC forums on 1/4/2016


Green light is on and constant tone and when plugged in, outlets still work. 

See Answer In Context

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BillP
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216

Re: Constant green light with noise

This reply was originally posted by Bill on APC forums on 1/4/2016


Hi,

These are the Audible tones and indicators for the BE750BB

On Line: Green power on LED lit with no tones

On Battery: 4 beeps every 30 seconds, the power on LED will be off while beeping

Low Battery: Constant beep, the power on LED will be off while beeping

Overload: Constant tone, there is no power from the outlets at all

Low voltage sleep mode: 1 beep every 5 seconds

BillP
Administrator Administrator
Administrator
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0
217

Re: Constant green light with noise

This reply was originally posted by Lloyd on APC forums on 1/4/2016


Green light is on and constant tone and when plugged in, outlets still work. 

BillP
Administrator Administrator
Administrator
0 Likes
0
216

Re: Constant green light with noise

This reply was originally posted by Bill on APC forums on 1/4/2016


Hi,

Reset the unit

1: Disconnect any attached load.

2: Unplug the UPS from the wall socket.

3: Disconnect the UPS' internal battery.

4: Push and hold the "On" button on the UPS for 5 seconds

5: Reconnect internal battery.

6: Plug UPS in to known good power source.

7: Turn UPS on.

If after resetting the unit the UPS still has a constant tone with nothing plugged into it it will need to be replaced.