Does this UPS make any noise while it is running?
1178454
None. And, it stays cool. You can sit it on your desk if you like (it's a lovely form factor- the image does not do it justice). But it's a beast in terms of function; on one, I have a PC, 2 24" monitors, a switch, a router, VOIP, handset, cooling fan, speakers and I can unplug from the wall and nothing even flickers, let alone resets. (using the 1500AVR model)
1178455
The UPS has a cooling fan sound from the unit when the battery back up kicks in, a very low fan hum.
1178456
My UPS makes no noise at all. It has no moving parts and there is no electric "hum."
1178457
Don't think so, but we use them (3) in our Children's Child Care a pretty noisy place... and I'm kinda' hard-of-hearing....
1178458
No noise. We had a power outage last night and it ran an Apple 27 inch iMac for almost one hour. The display will only stay on for 30 seconds when the power is on, but it will stay on during a power outage showing battery life.
301418
No idea, check your install and make sure it's well supported, mine has no noise like that.
1633846
When the power goes off, I can tell you, most assuredly, that the unit isn't charging, it is doing the opposite, it is providing power. Depending on how much load you put on it, it is supposed to provide enough battery power to shut down your sensitive electronics safely. It will beep to let you know you are using up your battery power. If it is similar to other UPS's I've had experience with, it will beep more frequently until it sounds a final long tone telling you it will have to shut down. At least that's the way our APC units worked on our workstations when we lost power. I only saw my Cyber Power kick in once, for a few second interruption, so I don't know what it looks like when run until drained.
1673615
It does make noise but its not that loud. I have it right next to my desk. when its not running it is silent.
2255326
It's powered, 12V and got a switched split psu inside, no switching noise audible though.
2142309
Mine will make an audible clicking noise whenever the system starts up or shuts down. I'm guessing it is something inside completing the circuit allowing the system to run.
417741
It is possible that when in backup mode it gets noisy but in normal standby mode with the line voltage such that it is not operating from battery, the fan is not running at all. I never noticed any noise.
2003201
It's noticeable, but not loud.(except when it first powers up for about 60 secs). I keep mine in a seperate room, because my other gear is silent compared to it, but it's not nearly as loud as a hp or cisco server.
1633717
No noise or hum - I forget it's even there unless it's doing it's self test (about 5 seconds) then it's quiet again. South Florida.. we have lots of power interruptions and it's been a blessing.. I know it has saved my computer time and again.
466342
Mine is always on with no load as well but also pretty quiet. It will ramp up a lot under load. I don't find the no-load noise too much but under load it can be pretty loud.
1835826
Mine does make a very slight fan sound. Only noticeable if it is very quiet.
1401261
I have not had that occur. I wish I could tell you more about what is causing that noise. It might have done so, but I had mine installed by a professional and I was not there for the testing. I have not had a power failure so it has not had to kick in either, so I haven't heard it in operation.
1802676
Hello Debby, The short answer to that is no, I have had two of these PW3500s and apart from the cooling fan which is very quite they make no noise, even on full load. John.
91168
The only noise I will occasionally hear is a slight click when the power switches on/off. Other than that, it is completely silent. It's basically a digital clock with outlets
356108
Not to my knowledge. Mine has never made a noise of any kind. You should contact the manufacturer or Amazon.
1412462
The only noise I hear is when you turn it on. Sometimes you will hear it interchange and sometimes you don't. If it has set off for a while it will make a loud click and hum but it goes away in a couple seconds. Other than that it does not make any sound that is noticeable.
1014001
No noise since I've had it in place which has been installed for about 1.5-2 yrs now. Hope this helps. Thanks