Question about Compaq R1500 ( 295459-001 ) UPS System

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Cannot clear red status light on Compaq rack mount UPS

I have a Compaq rack mount ups with a red status light aside a power plug on the front , there are no buttons on front to clear this light.There is no apparent Compag part # ,on the back is a label Deltec PRR2500A part # 163760-001. 120V 20A output.We recently had a power outage that triggered the red light . The ups seems to works ok , I just need to know how to clear the light.A manual would be helpful

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  • lilnewfiedud Feb 25, 2009

    i have the exact same problem i replaced the batteries and it is still on any ideas?

  • Anonymous Mar 04, 2009

    same here after power failure any ideas?



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According to the manual I have, that is a site wiring fault. It means that there is no ground on your AC line coming into the unit.
If you e-mail me, I will send you the pdf of the manual.

Posted on Mar 20, 2009

  • David Dunn
    David Dunn Mar 20, 2009

    I posted the manual on this site. They said it could take 24 hrs for it to be reviewed and posted on-line.



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Are the outlets that you use to plug it in grounded? have you unpluged it for a bit and plug it back in to try and reset it? the red light could also be a malfunction of the surge protection. or the battery is bad. hope this helps you,glen

Posted on Jan 26, 2009


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1 Answer

My ups battery backup time is too short even i replace the battery

sounds like you have too many devices plugged in, it's not the ups that's failing it's the amount of power it takes to keep all you devices running. you may want to buy a larger ups or you can unplug some of the devices you don't need in the event of power outage. if it's just your pc your power supply might be sucking up alot of juice, i'd check and see what the power consumption rate is on that particular power supply.

Nov 15, 2009 | Dell Uninterruptable Power Supply, 1500VA,...

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As you have mentioned that the light are glowing shows that it is not a hardware circuitry problem.

I think that you have to check the battery of the UPS and replace it if needed..

To me it doesn't seems like a circuitry problem.

Thank you

Aug 17, 2009 | MGE UPS Pulsar EX15 Rack (89015R) UPS...

3 Answers

Getting red light and continuously beep sound to my UPS(Frontech)


If it is showing the red light and continuous beep it shows that the battery is completely gone.

You can buy a battery and replace it by yourself.

Or get it to a professional to change the battery.

you need not replace the whole UPS its just a battery problem.

Thank you

Aug 10, 2009 | Compaq R1500 ( 295459-001 ) UPS...

1 Answer

UPS Batteries bulging and not working

There are several reasons for a buldged battery.

Mainly - older batteries do that. These batteries are meant to be replaced every so often. The r1500 is an older model, and therefore if those are the original batteries, it's probably normal.

My unit the battery is about to die also, I will be replacing it soon :-).

Mar 20, 2009 | Compaq R1500 ( 295459-001 ) UPS...

1 Answer

Solid red light on R1500 rackmount UPS

If it is the single light to the left of the batery symbol it means "Potential Battery Failure". I have a pdf of the manual that I found at a different forum site. I am not sure how to post an attachment here. E-mail me and I will send it to you.

Feb 25, 2009 | Compaq R1500 ( 295459-001 ) UPS...

1 Answer

My client has 19" in rack mount ups's circa 3kW. The building has generator back up however when we drop the mains and put the building on generator the ups do not see the generator hence stay on...

It sounds like someone wired your outlets wrong. I actually just found the same exact thing in my server room. All other outlets in our office are covered by our generator backup power except our server racks. I would suggest contacting the original electrician that installed the wiring to come out and check it again. Something is clearly wired wrong.

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1 Answer

Replaced Battery Issue

Try removing and reconnecting the batteries, make sure they have a tight fit with the contacts inside...use pliers if you need to

it is possible one of the batteries has gone bad, "defective"
I had this happen 1 time, with a defective battery after a few weeks in the UPS

good luck
thanks for rating

Jan 10, 2008 | Computers & Internet

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