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Back UPS ES 750 makes a constant beeping sound when powered on

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.

Solved
adrianneg_apc
Cadet
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372

Back UPS ES 750 makes a constant beeping sound when powered on

This was originally posted on APC forums on 5/5/2013


Model & Serial Numbers:

BE750G

5B1127T18086

------------------------------------------

When the unit is plugged in directly to a wall outlet, it makes

a continuous beeping sound. I removed all devices that were

plugged into the ups.  I plugged an electric pencil sharpener

into the Surge Protection outlets, and it will still work, even

though the ups is beeping.

When I plug the sharpener into the Battery Backup + Surge

Protection outlets, the sharpener does not work.  The circuit

breaker button remains out at all times. I pressed and held

it for a few seconds, but it pops right out when released.

I also disconnected the battery that was connected to a

red & black wire. I re-connected the black cable, and touched

the red cable to the lead on the battery, and it sparked. The

black cable has a white plastic casing around the lead which

prevents it from being connected to the battery incorrectly.

Can this ups be fixed?

Thanks a bunch,

Adrianne


Accepted Solutions
BillP
Administrator Administrator
Administrator
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372

Re: Back UPS ES 750 makes a constant beeping sound when powered on

This reply was originally posted by Jonathan on APC forums on 5/6/2013


Aside from the tone that it makes, do you see any Red or Green LED that lights up?  If you do, can you tell us the pattern that it makes?

See Answer In Context

1 Reply 1
BillP
Administrator Administrator
Administrator
0 Likes
0
373

Re: Back UPS ES 750 makes a constant beeping sound when powered on

This reply was originally posted by Jonathan on APC forums on 5/6/2013


Aside from the tone that it makes, do you see any Red or Green LED that lights up?  If you do, can you tell us the pattern that it makes?