FANUC Alarm PNT1-601 — Fast fluid flow leak detected
Manufacturer wording — %sFast fluid flow leak detected
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PNT1-601 (“Fast fluid flow leak detected”): A large amount of fluid flow was detected when the gun was not turned on. First check: The various fluid lines and valves should be inspected and repaired immediately.
Updated 2026-09-17 · LogrobotLM reference
Description
A large amount of fluid flow was detected when the gun was not turned on. This might be caused by the dump valve being stuck on, or a broken fitting, or a broken paint line. Note that each time the fluid begins to leak fast, the color valve will be turned off. This will prevent the robot from spraying the part.
Remedy
The various fluid lines and valves should be inspected and repaired immediately. Check and repair the dump pilot valve and the dump valve, if necessary.
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 →