FANUC Alarm PAIN-138 — ABRT PC serial interface fault
FANUC PAIN-138 (“ABRT PC serial interface fault”): PC interface serial link has failed. First check: Check LED status on PC interface board.
Updated 2026-09-17 · LogrobotLM reference
Description
PC interface serial link has failed.
Remedy
Check LED status on PC interface board. Refer to manual for possible.
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 →