UPS showing intermittent overload

[Homer Simpson]

so i have a geek squad (yeah, i know) 1300va ups. at my apt, i had my 42" plasma, ps3, wii, att uverse dvr, yamaha receiver and my harmony remote charger base plugged into it. the tv, dvr receiver and i cant recall the 4th item were on the battery side. everything else was surge only. ups worked fine. i just moved this weekend to a new house. actually, an old house (1962). anyway, i plugged in the tv, surewest dvr, receiver and ps3 in last night just to see if my cable worked. it did. then i loaded up the ps3. thats when the overload light and alarm started going off intermittently. i pulled the receiver and put it on the surge side then just in the wall. got it down to just tv and ps3 on the battery and it still showed overload. moved tv to surge side so ps3 was the only battery item. still intermittent overload. it was late and i was in the middle of a quick game of buzz with visiting family members so i didnt pull the ps3 off. i dont see how the ps3 could be overloading a ups of this size.

could it have been damaged in the move? did the battery discharge after being unhooked for a couple days and i was pulling more than the battery was able to back up at that time? ill play with it more today but was hoping to get some thoughts. its not an indication of me overloading the house circuit i dont think cuz that wouldve tripped my circuit breakers which didnt happen and there was no wiring fault light

 

[Blain]

Have you checked the house circuit you're connecting to?

 

[Homer Simpson]

how would i check that? i would think if i was overloading it, it would've popped a breaker. i thought the overload on the ups meant i had too much crap plugged in for the size of the battery. fwiw, upstairs in my office, i have a 450 and 550va ups plugged into the same outlet and a 750 in another outlet in the same room. two fully loaded computers running with no problems. surely those draw more than my ps3. granted thats a different circuit most likely but still....

 

[Blain]

It may not be a pure mathematical load problem. The house circuit may have some kind of freakish grounding problem that shows up in the UPS as an overload.

Unless you've run the wire in the house or tested the circuit, you won't know for sure.

 

[Homer Simpson]

well, i finished setting up my home theater stuff last night and got everything plugged in like i had it before and i have no problems. i was up running all night w/o so much as a peep from the ups. tv, receiver and dvr are on battery, ps3, wii, sub are on surge side.