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FANUC Alarm MEMO-148 — WARN Flash File access error(read)

Warning
Hardware
main board and memory
Controllers
R-J3iB / R-30iA
FANUC class
WARN
Hardware family
FANUC storage media alarms: memory card, USB, F-ROM and corrupted data

FANUC MEMO-148 (“WARN Flash File access error(read)”): The read access to the Flash File(F-ROM) failed. First check: The Flash File(F-ROM) may be broken.

Updated 2026-10-22 · LogrobotLM reference

Description

The read access to the Flash File(F-ROM) failed. Some program may be lost.

Remedy

The Flash File(F-ROM) may be broken. Create or load the lost program again.

Field diagnosis

Reading the flash memory failed: a program may be lost.

What to check

  • Recreate or reload the program; replace the main board or the memory module if the code returns.
  • Note: Same family as MEMO-147.

Related codes

MEMO-147WARN Flash File access error(write)SYST-031SYSTEM F-ROM parityMEMO-146WARN Invalid variable is usedMEMO-149WARN Specified program is brokenMEMO-151WARN No more available memory(TEMP)

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 →