LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm FILE-041 — WARN File not locked

FANUC FILE-041 (“WARN File not locked”): You tried to unlock file which you had not locked. First check: Don’t unlock a file that is not locked.

Updated 2026-08-29 · LogrobotLM reference

Description

You tried to unlock file which you had not locked.

Remedy · Remède

Don’t unlock a file that is not locked. You can only unlock files which YOU have locked.

Frequently asked · Questions fréquentes

What does FANUC alarm FILE-041 mean?
FANUC FILE-041 (“WARN File not locked”): You tried to unlock file which you had not locked.
How do you troubleshoot FANUC alarm FILE-041?
Don’t unlock a file that is not locked. You can only unlock files which YOU have locked.

Related codes / Codes liés

FILE-039WARN Directory already existsFILE-040WARN Illegal file access modeFILE-042WARN ( this is an internal code)FILE-043WARN Context table is full

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →