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### Instruction:
FT-4-FAN_TRAY_0_REMOVED
### Response:
(Severity: 4), (Category: LIBRARY), (Description: FT0 removed, FT1 and FT2 OIR won't be detected in absence of FT0. Insert FT0 back.), (Recommended Action: Copy the error message exactly as it appears on the console or in the system log, call your Cisco technical support representative and provide the representative with the gathered information.)
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