Three Blinking Red LED's on PXI(e) Chassis

Updated Sep 3, 2025

Reported In

Hardware

  • PXI Chassis
  • PXIe-1092

Issue Details

I have a PXI(e) chassis which has all three LED's on the front blinking red. The manual for my chassis indicates that this means an internal chassis fault has occurred. How can I fix this?

Solution

Try the following troubleshooting steps to resolve or narrow down the issue:

  • Please start by resetting NI Measurement & Automation Explorer to ensure the issue isn't related to any corruption in its database.
  • Try Updating PXI Chassis Firmware.
  • Remove any peripheral modules from your chassis one at a time and check if the issue still occurs. It is possible that damage either to the module itself or the connectors is causing the issue. Inspect the modules and PXI(e) slots for damaged pins. 
    • Note: An improperly seated module may also be the cause.
  • Try using a different controller with your chassis or vice versa. It is possible that damage either to the controller itself or the connector is causing the issue.
    • Note: An improperly seated controller may also be the cause.
  • If using multiple 3rd party modules in a chassis that has different slots going to different PCI bridges/virtual switches on the backplane, try placing the 3rd party modules in slots that go to different switches/bridges, rather than placing them all in a group of slots that go through the same switch/bridge.

If the issue is still occurring after going through the steps above, it is likely that either the chassis, controller, or one of the peripheral modules is faulty. Please contact NI Support for further troubleshooting information and the possibility of a repair and/or replacement.