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FANUC Alarm HOST-105 — WARN Write protection violation

FANUC HOST-105 (“WARN Write protection violation”): The disk has write protection enabled. First check: Remove write protection from the disk or use a disk that is not write protected.

Updated 2026-08-29 · LogrobotLM reference

Description

The disk has write protection enabled.

Remedy · Remède

Remove write protection from the disk or use a disk that is not write protected.

Frequently asked · Questions fréquentes

What does FANUC alarm HOST-105 mean?
FANUC HOST-105 (“WARN Write protection violation”): The disk has write protection enabled.
How do you troubleshoot FANUC alarm HOST-105?
Remove write protection from the disk or use a disk that is not write protected.

Related codes / Codes liés

HOST-103WARN Seek errorHOST-104WARN Disk timeoutHOST-106WARN $PROTOENT entry not foundHOST-107WARN $SERVENT entry not found

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 →