FANUC Alarm PAIN-428 — WARN …Bearing Air NOT OK

Manufacturer wording — WARN %sBearing Air NOT OK
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PAIN-428 (“WARN …Bearing Air NOT OK”): The digital input signal that indicates whether or not the Bearing Air is above the minimum pressure is not ON. First check: Check the supply pressure to the Bearing Air or verify the digital input signal is working correctly.

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 →