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Ups randomly shuts off - TriPro Power (POW-1000AS) UPS System

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Re: Ups randomly shuts off

Hi, Could be anything but chances are it's the battery. It's very rare (but still happens) for the electronics of a UPS to be faulty. Try leaving the UPS powered on but without any load (PC, monitor, printer off) for a few hours or better still overnight. Try it again and observe if the random shut off occur. If yes, then it is time for a replacement battery. At certain instances, it may be that the UPS is working too much (overloaded), try just running the CPU to the UPS and the monitor directly connected to the mains. Hope this be of help/idea. post back how things are or should you need further information. Good luck and kind regards.

Posted on Aug 29, 2007

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Liebert ap361

I'm an engineer and familiar with the innards of these things. My considered opinion is that I would not try what you are suggesting, which is a hot swap of the fan.

My reason is safety. Inside that unit are elements that generate 120V AC within a few thousands of a second of power loss. That can happen at any time. If you are in some random location up to your elbows, how will you know? Also, during this same interval, the unit is bypassing the AC generation and coupling AC to the internal outlets.

120V is sufficient to kill you if applied across the right points on your body at the right time.... say from hand to hand across your chest. Not worth the risk of a few minutes of downtime, especially for novices.

I'm not familiar with this specific UPS, but the standard method of doing this type of thing is shutting off the loads, removing the UPS, fixing it, re-installing it, and powering everything back up. If it's going to take HOURS and you need the machine, you can always power things up without a UPS OR you can borrow one for the moment. You should be comfortable with doing this sort of thing, anyway and practice is a good thing.

Jul 14, 2014 | UPS Battery Backup Systems

1 Answer

Keeps going out


When was the last time you replaced the battery? That may be the cause.

If you need any UPS help contact Daniel @ Power & Systems Innovations 800.260.2259 or go to our website

Sep 17, 2013 | Tripp Lite Internet Office INTERNET550U...

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I hit the button to turn it on it will stay on for awhile and then it will start beeping really loudly an shut off

With your UPS turned off, unplug your PC and all other devices from the unit. Then turn the UPS on. If it still beeps and shuts off your UPS internal battery may need to be replaced or you have an internal UPS failure. Look for a red "battery alarm" light on the front of your UPS.

If the UPS does not shut down with all devices disconnected from it, Power off your monitor and look on the back of the monitor for a label which will tell you the amount of power it requires (probably 100 watts or less). Plug the monitor's AC power cord into your UPS and turn on your PC and monitor. With the UPS plugged into the AC line you are not using the internal battery and the UPS should remain on and your monitor should be working. If it shuts down you have an internal problem with the UPS.

Now unplug your UPS from the AC line (simulating a power failure) Your UPS is rated at 350 watts. Accordingly it should easily support the 100 watt load of your monitor. If the UPS continues to provide power to the monitor for 1 or 2 minutes down it's an indication that it's working properly and the COMBINED LOAD of your monitor. PC etc. when plugged into the UPS is exceeding the 350 watt capacity of the UPS. You will have to disconnect 1 or more devices from the UPS.

NOTE: Never plug a laser printer into an UPS.

If the UPS immeadiately shuts down after disconnecting it from the AC line with only the monitor plugged into it you have a bad battery.

If you found this information to be helpful to you please return to the FixYa website and rate me.


Dec 07, 2010 | APC Back-UPS ES 350 - UPS ( external ) -...

1 Answer

I have a MGE pulsar evolution 800 supporting a server and it just went dead a week ago. There doesn't seem to be any visual damage but it won't power up. No smell of any burning components or the likes. if...

In my understanding, These pulsar evollution 800 have a design fault. We have worked with more than 8 of these and, at some point, they just don't recover after a power shortage. Sometimes, at random, they could come up. But it becomes a real nightmare to deal with this issue when you usually install a ups for a critical non-stop system.

Sep 29, 2010 | MGE UPS Pulsar Evolution 800 UPS System

1 Answer

The ups shuts down the pc randomly

how much it wil cost..
cal me in +919947073395
my name is rahul chandy

May 03, 2010 | Mustek PowerMust 800 (POWERMUST800USB) UPS...

2 Answers

Our computer shuts and turns itself on repeatedly with out any warnings.

Is it old or screwed up? the fan that cools the CPU (processor) could be broken and it just gets really hot and it turns off the make sure your computer is not fryed take it to some compouter guy that knows what theyre doing and have then check on it

Dec 14, 2009 | Opti (es550c) UPS System

1 Answer

Smart pro keeps shutting down

it seems that the internal battery is bad, even if it is new but if it stays in the shopping store for long time it may become bad and not charge.

Dec 09, 2008 | Tripp Lite Smart Pro UPS System

1 Answer

MGE Galaxy 3000 UPS shows charger internal fault .

mge galaxy 3000 battery circuit breaker shut off when normal power shut off too.plz help !!!!!!

Jul 29, 2008 | MGE Galaxy 3000 UPS System

1 Answer

UPS Internetoff700 keeps wont stop Beeping

this is normal when especially when we have short flow of power,or power spikes,surges and is not overloaded at all i had such a problem some times back en ma technician told me it is ok

Feb 08, 2008 | Tripp Lite BC Personal BCPERS300...

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