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Hi!! Thank you for your time! We're doing our

Hi!! Thank you for your time! We're doing our annual UPS maintenance. I have (2) POWMAX UPS-500's that won't even power up. Does this mean I need to replace the unit completely?

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A few questions. Is it an stand alone one? seems to me a 500VA rated UPS, for light loads only.

Some stand alone common problem.

1. Battery for replacement
2. Fuse busted
3. Faulty relay

If repair and battery replacement outweighs the new one or got a small difference. Its better to have a new UPS unit.

Hope this helps

Posted on Sep 30, 2009


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When i switch on my apc ups it started to make a noise and the light starts to flicker, how can i fix this? pls help me thank you.....

check battery voltage > 12.5 V if ok there is a fuse on the the internal board it might be defective, should be replaced

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Hi Lasantha,

Check the battery in your UPS - it's most likely going bad and you will need to replace it.

If you need UPS, Surge, or Power Related help contact Daniel @ Power & Systems Innovations 800.260.2259 or go to our website:
** If this helped - Give it a Thumbs Up :) **

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I need to conect to my UPS via my computer . Not sure who to do this?

Is easy, here is how to do it:
  1. Plug your computer in your UPS
  2. Plug the UPS to an outlet/plug
  3. Start the UPS
  4. And done
If you want your monitor conected to the UPS make sure it has 2 spacest to plug them in or use an extension cord with 2 outlets or more.
Hope it was usefull

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After i switch on the ups there are continuous beeps with red light instead of the normal green. if i continue to use the beeping stops after sometime but the red light persists. But then again the beeping...

ups with 300 watts can only back up 1 computer, though it can handle 2 computers but not too long. your ups battery life span are good only for 2 to 3 years. for battery replacement you can visit the nearest service center and ask for battery replacement. it will not cost you much.

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At times this may be a software issue or an SNMP problem. Normally to refresh the battery data for the UPS monitoring software we carry out a battery discharge test. Please consult with the supplier if an annually battery discharge test is mandatory for the battery monitoring circuit to work well. Please let me know of the outcome

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If you can repair pcb then check overload protection section.There is some shortinng in components or ic could be demage.
Hope this be of initial help/idea. Pls post back as requested, how things turned up or should you need additional information.
Good luck and kind regards.
Thank you for using FIXYA.

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