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FANUC Alarm APSH-164 — WARN Home I/O program … not loaded

Manufacturer wording — WARN Home I/O program %s not loaded
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC APSH-164 (“WARN Home I/O program … not loaded”): The HOME I/O program as specified from the Cell Setup menu does not exist and was not run. First check: Go to the Cell Setup menu and either check the name of the HOME I/O macro name menu item.

Updated 2026-09-17 · LogrobotLM reference

Description

The HOME I/O program as specified from the Cell Setup menu does not exist and was not run.

Remedy

Go to the Cell Setup menu and either check the name of the HOME I/O macro name menu item. Make sure the file specified exists on the controller. Either create a program by that name or change this menu item to a program that already exists on the controller.

Related codes

APSH-162WARN No group output for multi-pressureAPSH-163WARN No motion allowed--gun closedAPSH-165WARN Invalid Studgun SelectionAPSH-166WARN Studgun Change Unsuccessful

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 →