Battery Backup and Surge Protection section not working

[Anonymous user]

I plugged in a space heater on this section and after a couple of days, I received a buzzing noise and nothing that I plug in now works. The other side, which is just a surge protector still works. I tried unplugging the unit and replugging in, hoping that it would reset, but did not. Any ideas? Did I fry the other side? The power light nor the battery low light is coming on.

[Anonymous user]

My model is Back UPS ES 350 and the LED light is not on now and it seemed when I shut it off and turned back on, the buzzing stopped.

[BillP]

which model UPS do you have? this should be on a white sticker on the back or bottom of the UPS.

unless properly sized, i feel as though a space heater falls into the same category as a laser printer. [recommendations for connecting a laser printer to a UPS|http://nam-en.apc.com/app/answers/detail/a_id/23].

what are the specs on the laser printer? was this buzzing noise from the UPS? were any LEDs on the UPS when the buzzing was occurring?

[BillP · Accepted solution]

it may have gotten overloaded because BE350 cannot handle a very big load and a space heater i am sure would overload the UPS unfortunately. you could try plugging it on the surge side only but have no battery back up for it.