FANUC Alarm PAIN-547 — WARN …Slow air flow leak detected
Manufacturer wording — WARN %sSlow air flow leak detected
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PAIN-547 (“WARN …Slow air flow leak detected”): A small amount of air flow was detected when the gun was not turned on. First check: No immediate is required, the paint system will continue to function properly.
Updated 2026-09-17 · LogrobotLM reference
Description
A small amount of air flow was detected when the gun was not turned on. This may be caused by a leaking trigger valve, leaking air line, or any other air leak between the air flow sensor and the gun.
Remedy
No immediate is required, the paint system will continue to function properly. The applicator and various air lines should be inspected and repaired.
Related codes
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 →