FANUC Alarm ARC-004 — WARN Gas flow after weld

Manufacturer wording — WARN Gas flow after weld (%s^4,%d^5)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-004 (“WARN Gas flow after weld”): The gas fault input was not ON after the gas output was set to OFF. First check: Check if weld controler is functioning correctly, or powered on.

Updated 2026-09-17 · LogrobotLM reference

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 →