# The fault LED is not flashing

If you inserted the USB flash drive into a USB port on a node canister of the correct system and the fault LED of the node canister does not start flashing, use these instructions to determine any necessary actions.

## About this task

After the USB flash drive is inserted into either of the two USB ports the fault LED () on the node canister 1 starts flashing. The fault LED continues to flash while the system is initializing. Normally during this process the fault LED flashes for approximately 3 minutes before it stops.

If the fault LED does not start flashing as expected, use the following steps to determine any necessary action:

## Procedure

1. Ensure that the canister is still operating. Look at the system status LED (). If the system status LED is permanently off, the node canister stopped working. Assuming the status LED was in the flashing state before you inserted the USB flash drive, follow the procedure that is described in topic Resolving problems with the node canister, then restart the initialization of the system. If this condition occurs again, contact your service representative.

   If the system status LED is not lit, remove the USB flash drive from the node canister. The canister did not complete powering up and is not ready to receive the USB flash drive. Powering up the canister can take up to 10 minutes. If the status LED does not flash within 10 minutes, proceed to step 2.

2. The USB port might be faulty. Remove the USB flash drive from the port and fully insert it in the other USB port on the node canister that you are initializing. Wait for 2 minutes for the fault LED to start flashing.

   If the fault LED starts flashing, this USB port worked. Return to the initialization wizard and wait for the fault LED to stop flashing.

   If the fault LED does not start flashing, both USB ports might be faulty.

   You can defer replacement of faulty USB ports until after the system is initialized and configured. The USB ports are not required for system operation after the system is initialized. To choose to continue with system initialization, restart the entire initialization procedure on the other node canister in the system.

   If a USB port on a node canister is faulty, replace the node canister. Contact the support center for assistance.

Parent topic: The fault LED does not start flashing or does not stop flashing