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ABB Error 34319 — Drive Unit / cooling fault

Error

ABB 34319 (“Drive Unit / cooling fault”): Unspecified critical Drive Unit error, typically associated with overheating or a short circuit. Likely part: Drive Unit / Refroidissement (Drive Unit / cooling).

Updated 2026-10-22 · LogrobotLM reference

What it means

Unspecified critical Drive Unit error, typically associated with overheating or a short circuit.

What to check

  • Check fans, heat sinks, ambient temperature, overload/torque, accelerations, cables, connectors and motor.
  • Note: Generic Drive Unit hardware fault; high diagnostic value when it accompanies other 34xxx errors.

Part to check / replace

ABB 34319 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

34100Drive system fault34200Axis Computer / Drive Units fault34201Drive Unit fault

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 →