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FANUC Alarm LNTK-033 — STOP Failed to send a packet

FANUC LNTK-033 (“STOP Failed to send a packet”): Failed to send a packet including trigger value. First check: Perform a COLD start of the system.

Updated 2026-09-17 · LogrobotLM reference

Description

Failed to send a packet including trigger value.

Remedy

Perform a COLD start of the system. (Cycle power.) Notify FANUC Robotics if problem

Related codes

LNTK-031STOP UFRAME must be zeroLNTK-032STOP Conveyor resync failedLNTK-034STOP Failed to make a packetLNTK-035STOP Invalid INTR function pointer

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 →