LED blinking after power on

[Anonymous user]

hi guys
our SUA2200RMI2U ups have some issue, after i switch on the UPS all LED at the right side was blinking, then i turn it off, but when i unplug the power source and switch the ups on to battery mode the unit is working fine,
anyone can help for this issue...thanks in advance

[BillP]

Hello Hanz,

I would like to check the behavior of your UPS. The LEDs that you've mentioned are those that are on the right hand side of your UPS. For how long does it blink? Any changes you have made with that UPS, like adding a new load, replaced the battery or experienced a blackout? How old is your UPS by the way? This could be a case of what do we call as flashing battery bar graph.

Please feel free to read the knowledge base that discuss about why would the battery bar graph flash on a Smart-UPS --> [APC Knowledge Base ID 1497|http://nam-en.apc.com/cgi-bin/nam_en.cfg/php/enduser/std_adp.php?p_faqid=1497&p_created=1010390400&p...]

[Anonymous user]

Hi Jonathan

we just change the battery the other day, the LEDs were blinking are Battery Bar, Overload, On-Battery and Battery Replacement.., first the ups was down and i try to power up and then the online LED was blinking the time the ups initiate it turns Blinking all LEDs at the right panel. the s/n: ys0402224978.
thanks in advance

[BillP]

Hello Hanz,

Based from the LED indicators that you have mentioned, it looks like your UPS has encountered a fault. We can try to following steps to check if we can recover from that fault.

- Remove the load that are connected on the UPS and then turn the APC unit off.
- Unplug the UPS from the power source and then press and hold the OFF button until you hear a click or see all the LED indicators flashes once.

The procedure mentioned above is what do we call as brain dead, it cuts the remaining power that is present on the UPS circuitry i.e. capacitors.

[Anonymous user]

Hi Jonathan

Thanks, the issue was resolve already...

[BillP]

Hi Hanz,

It is good to hear that the issue was resolved already. Care to share what you have done?

[Anonymous user]

HI Jonathan

I just follow what you said, but i removed the battery and load for 1 day, then following day i power up the ups again everything back to normal. Thanks Jo

[Anonymous user · Accepted solution]

Hi Jon

after 4 yrs, now again i encountered the same problem.., using the procedure i mention above still no lack.

Hoping for your reply once again 🙂