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Critical Alarm Present. An EEPROM fault exists.

APC UPS Data Center & Enterprise Solutions Forum

Schneider Electric support forum for our Data Center and Business Power UPS, UPS Accessories, Software, Services, and associated commercial products designed to share knowledge, installation, and configuration.


Critical Alarm Present. An EEPROM fault exists.

Hello! I have a Smart-UPS SRT 8000. An error "An EEPROM fault exists" appeared in the web interface. The message "G.01 Contact support" appears on the screen. Please help me to fix the problem. Thanks!!!

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Lt. Commander Lt. Commander
Lt. Commander

Re: Critical Alarm Present. An EEPROM fault exists.

Hi @sonos_inc 


Thank you for reaching out to the SE Community, my name is Jon and I will assist you with this query.  Apologies for the late revert, the fault, shows the EEPROM of the UPS has encountered a fault.  We can clear the alarm via the LCD and if it returns we can perform the brain-dead procedure.


To know more on how to perform the brain-dead procedure, you may refer to this article, Video: How to perform a cold start and brain dead on Smart-UPS.


If the fault cannot be clear using the brain-dead procedure, a UPS replacement is needed.  Prior to going to this route, I would also consider checking the following:

  • Were there any power issues that happened on site?
  • Is this the first time that you've encountered this issue?
  • What was the UPS state prior to this fault?
  • Were there any changes to the site/load and/or UPS?

Secure Power Team
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