FANUC Alarm PNT2-278 — Color Valve + PrgAir both ON

Manufacturer wording — %sColor Valve + PrgAir both ON
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT2-278 (“Color Valve + PrgAir both ON”): This error should never occur during normal PaintTool operation. First check: Document the events that led to the error, and contact your FANUC or FANUC Robotics technical representative.

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 →