FANUC Alarm FILE-084 — The format operation failed
FANUC FILE-084 (“The format operation failed”): The device has some problem or is worn out. First check: Retry the operation.
Updated 2026-09-17 · LogrobotLM reference
Description
The device has some problem or is worn out.
Remedy
Retry the operation. If the alarm consistently occurs then try a different device. Using a personal computer check the device with a Check Disk or Error-checking tool.
Related codes
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →