ups continuous whistle

[Anonymous user]

Hi!
I have a back -ups 700, a few days started to whistle continuously and sockets are not powered.

I purchased a new battery to replace the original, but the problem is not solved.

What may have happened ?

Thanks

[BillP · Accepted solution]

Hi,

The UPS should not make a whistling noise. You can try a reset to see if the issue clears

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 the unit continues to whistle after the reset it should be replaced.