Remove and Reinsert Control Card
Cisco NCS 1002 can carry traffic with a non-functional control card (headless mode) for up to 72 hours. In case of card failure, the failed control card needs to be physically replaced within 10 minutes.
Remove control card.
Reinsert and lock control card.
Re-insert the fan on the right back side (Fan 0).
For information on CPU OIR LEDs, refer LEDs in Cisco NCS 1002.