LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

ABB Error 34258 — Short circuit in bleeder resistor circuit

Error

ABB 34258 (“Short circuit in bleeder resistor circuit”): Short circuit in bleeder resistor circuit: the bleeder resistor connected to the rectifier reports a short circuit. Likely part: Résistance de bleeder / Câble de bleeder (Résistance de bleeder / Câble de bleeder).

Updated 2026-10-22 · LogrobotLM reference

What it means

Short circuit in bleeder resistor circuit: the bleeder resistor connected to the rectifier reports a short circuit. HIGH VOLTAGE DANGER: the DC link will NOT be discharged when the system is powered off.

What to check

  • Lock out and wait for discharge before any intervention.
  • Check that the bleeder cable is correctly connected to the rectifier.
  • Disconnect the bleeder, check the cable and measure the resistance value.
  • Replace the faulty cable or resistor.
  • Note: Symmetrical fault of 34257 (bleeder open circuit). Older equivalent: “594 TEMP. RESISTANCE” (S2/S3).

Part to check / replace

ABB 34258 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

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 →