Config Router

  • Google Sheets
  • CCNA Online training
    • CCNA
  • CISCO Lab Guides
    • CCNA Security Lab Manual With Solutions
    • CCNP Route Lab Manual with Solutions
    • CCNP Switch Lab Manual with Solutions
  • Juniper
  • Linux
  • DevOps Tutorials
  • Python Array
You are here: Home / Juniper / The ‘PSU Fan failed’ alarm is set and cleared on the EX8200 Virtual Chassis

The ‘PSU Fan failed’ alarm is set and cleared on the EX8200 Virtual Chassis

June 28, 2016 by James Palmer

This article describes the issue of the PSU Fan Failed messages being generated in the system log (syslog) on the EX8200 Virtual Chassis; even though the PSU fan is working normally.

PSU Fan Failed messages are generated in the system log (syslog) on the EX8200 Virtual Chassis; even though the PSU fan is working normally.

On the EX8200 Virtual Chassis, PSU Fan failed messages are generated in the syslog; even though the PSU Fan is working normally.
For example:

May 30 12:31:37 send: yellow alarm set, device PSU 1, reason PSU 1 Fan Failed 
May 30 12:31:37 CHASSISD_PSU_FAN_FAIL: Fan Fail for power supply 1 
May 30 12:31:42 send: yellow alarm clear, device PSU 1, reason PSU 1 Fan Failed 
Jun 1 06:11:05 send: yellow alarm set, device PSU 1, reason PSU 1 Fan Failed 
Jun 1 06:11:05 CHASSISD_PSU_FAN_FAIL: Fan Fail for power supply 1 
Jun 1 06:11:10 send: yellow alarm clear, device PSU 1, reason PSU 1 Fan Failed

These alarms are false alarms and are short duration events, due to a software issue.

  • PSU Fan Failed alarms are continuously generated and cleared after 5 seconds in syslog.
  • Check the LEDs on the PSU. Green LEDs indicate that the PSU is operational.

This issue has been fixed in Junos 11.4R6, 12.3R1, 12.2R2, 11.4R5-S2, and 12.1R5.

Related

Filed Under: Juniper Tagged With: PSU Fan failed

Recent Posts

  • How do I give user access to Jenkins?
  • What is docker volume command?
  • What is the date format in Unix?
  • What is the difference between ARG and ENV Docker?
  • What is rsync command Linux?
  • How to Add Music to Snapchat 2021 Android? | How to Search, Add, Share Songs on Snapchat Story?
  • How to Enable Snapchat Notifications for Android & iPhone? | Steps to Turn on Snapchat Bitmoji Notification
  • Easy Methods to Fix Snapchat Camera Not Working Black Screen Issue | Reasons & Troubleshooting Tips to Solve Snapchat Camera Problems
  • Detailed Procedure for How to Update Snapchat on iOS 14 for Free
  • What is Snapchat Spotlight Feature? How to Make a Spotlight on Snapchat?
  • Snapchat Hack Tutorial 2021: Can I hack a Snapchat Account without them knowing?

Copyright © 2025 · News Pro Theme on Genesis Framework · WordPress · Log in