LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm PAIN-428 — WARN %sBearing Air NOT OK

FANUC PAIN-428 (“WARN %sBearing 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 2026-08-29 · LogrobotLM reference

Description

The digital input signal that indicates whether or not the Bearing Air is above the minimum pressure is not ON.

Remedy · Remède

Check the supply pressure to the Bearing Air or verify the digital input signal is working correctly .

Frequently asked · Questions fréquentes

What does FANUC alarm PAIN-428 mean?
FANUC PAIN-428 (“WARN %sBearing Air NOT OK”): The digital input signal that indicates whether or not the Bearing Air is above the minimum pressure is not ON.
How do you troubleshoot FANUC alarm PAIN-428?
Check the supply pressure to the Bearing Air or verify the digital input signal is working correctly .

Related codes / Codes liés

PAIN-419PAUS %sMax.dV/dT detectedPAIN-420WARN %sMax. output has speed < setpointPAIN-429WARN %sCruise Speed not establishedPAIN-430WARN %sCal. table adapted out tolerance

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →