ES-750 discharging even though it's plugged in?

[Anonymous user]

Hello.  Have had the ES 750 for about 2 years.  Came home today to it sounding like a smoke detector.  Turned it off, waited and turned in on again.  Now I notice on the app that it's discharging (even though it says it's charging).  I'm only putting about 55 watts on it. 

It won't complete a self test either.

Is it time to replace the battery or the entire unit?  Google searches seem to say that sometimes the battery replacement doesn't work and that the whole unit needs replacing.  I'd rather not buy just the battery to find that out.

Thanks.

[BillP · Accepted solution]

Hi,

Your should reset the UPS

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.

On 11/15/2015 10:12 PM, Nigel said:

It won't complete a self test either.

How are you initiating the self-test using PowerChute or manually?