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FANUC Alarm PALT-133 — WARN Could not clear file

FANUC PALT-133 (“WARN Could not clear file”): 1. If the unitload is being used in production it cannot be cleared. First check: 1. Wait until production is aborted and clear the unit load.

Updated 2026-09-17 · LogrobotLM reference

Description

1. If the unitload is being used in production it cannot be cleared. 2. If a unitload was loaded into memory at controlled-start, it can only be cleared at controlled start.

Remedy

1. Wait until production is aborted and clear the unit load. 2. If the unitload was loaded at controlled-start, you will have to go to controlled start to clear it. At controlled start press MENUS, select Clear UnitLd. You will only be able to clear unitloads that were loaded at controlled start from the controlled start menu.

Related codes

PALT-131WARN Layer num outside range (1-40)PALT-132WARN Cannot resume programPALT-134WARN STAKOPEN macro failedPALT-135WARN PLC_INF macro failed

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 →