ABB Error 0105 — I/O computer fault
ErrorABB 0105 (“I/O computer fault”): Faulty safety timer (blocking rhythm / watchdog) of the I/O computer. Likely part: I/O computer (I/O computer).
Updated 2026-10-22 · LogrobotLM reference
What it means
Faulty safety timer (blocking rhythm / watchdog) of the I/O computer.
What to check
- Replace the robot cabinet computer board.
- Note: Equivalent to CPU watchdog faults on IRC5.
Part to check / replace
ABB 0105 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
Related codes
Same hardware involved
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 →