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Beginner

Ex 90 power supply cell blue LED flashing

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

Everyone's tags (3)
5 REPLIES 5
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Beginner

Re: Ex 90 power supply cell blue LED flashing

Hi,

Try change the power supply.

Sent from Cisco Technical Support iPhone App

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Cisco Employee

Hi,  I have the same problem

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

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Beginner

We ended up changing power

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.

Re: Ex 90 power supply cell blue LED flashing

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

Highlighted
Beginner

Re: Ex 90 power supply cell blue LED flashing

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

 

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