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 HOST-101 — WARN Directory read error

FANUC HOST-101 (“WARN Directory read error”): The directory information is corrupted and unreadable. First check: Clean the disk drive,try another disk or reformat the disk.

Updated 2026-08-29 · LogrobotLM reference

Description

The directory information is corrupted and unreadable.

Remedy · Remède

Clean the disk drive,try another disk or reformat the disk.

Frequently asked · Questions fréquentes

What does FANUC alarm HOST-101 mean?
FANUC HOST-101 (“WARN Directory read error”): The directory information is corrupted and unreadable.
How do you troubleshoot FANUC alarm HOST-101?
Clean the disk drive,try another disk or reformat the disk.

Related codes / Codes liés

HOST-008WARN Only one file may be openedHOST-100WARN Communications errorHOST-102WARN Block check errorHOST-103WARN Seek error

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 →