LED lights correctly on the spare, the original power supply is faulty. Return it to Juniper
Networks for replacement, as described in “Contacting Customer Support” on page 211.
3. If the spare power supply also does not work, connect the router to a different power
source. You might also try replacing the AC power cord (on an AC-powered router)
or DC power cables (on a DC-powered router). For instructions, see “Replacing an M7i
AC Power Cord” on page 181 and “Replacing an M7i DC Power Cable” on page 175 (you
do not need to disconnect and reconnect the grounding cable).
4. If you cannot determine the cause of the problem or need additional assistance, see
“Contacting Customer Support” on page 211.
Related
Documentation
M7i Power System Description on page 59•
• M7i Router Power Requirements on page 79
• Maintaining the M7i Power Supplies on page 194
• Powering On the M7i Router on page 125
Troubleshooting the M7i CFEB and CFEB-E
Problem Description: The CFEB or CFEB-E is not functioning normally.
Solution To troubleshoot the CFEB or CFEB-E:
• Make sure the CFEB or CFEB-E is properly seated in the midplane. Use a Phillips
screwdriver to ensure that the screws on the CFEB or CFEB-E handles are securely
tightened.
• Check the alarm LEDs on the FIC. A CFEB or CFEB-E failure generates a red alarm.
Related
Documentation
• Installing the M7i CFEB and CFEB-E on page 184
• M7i Compact Forwarding Engine Board (CFEB) and Enhanced Compact Forwarding
Engine Board (CFEB-E) Description on page 63
• Maintaining the M7i CFEB and CFEB-E on page 195
207Copyright © 2019, Juniper Networks, Inc.
Chapter 29: Troubleshooting Components
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