BE700G-UK Serial number 5B1505T04154

[Anonymous user]

Been given this for my daughters Imac so she can use it at university when doing her course work

i have plugged it in and all i get is a constant high pitched tone and a red flashing light 

any advice will be appreciated

[BillP · Accepted solution]

Hi,

That indicates the UPS is overloaded. If there is no load then you should 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 the reset the unit still alarms it will need to be replaced.