Ex 90 power supply cell blue LED flashing

[Terraview27]

Hi folks,

Got 2 Ex90  no powering ON with the power supply blue LED flashing... looked at the PDF but there is no definition for this...

thx

[Valentin Ichim]

Hi,

Try change the power supply.

Sent from Cisco Technical Support iPhone App

[keconnau]

Hi, 

I have the same problem with an EX90. I tried 3 different power supplies but the issue remains. The blue LED is constant blue until I plug it into the EX90, then it faintly blinks. Any other suggestions

[Terraview27]

We ended up changing power supplies or sending the unit back to cisco for Reburbished.

Bad batch i guess. I would suggest to check with your reseller if you have a couple of those they might be able to talk to cisco and set you a deal for the repair which will be cheaper than buying new codecs.

[anthony.chadwick]

The transformers are bad on the power brick.  I've had to replace a couple myself.

[aromeroo]

Hi,

This blinking light on the PSU means that this PSU is faulty. Please open a case with TAC to proceed with the replacement. Some other cases get solved after this replacement.

Regards,

Cisco TAC