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ABB Error 20252 — Motor / Thermal sensor / Temperature cable fault

Error

ABB 20252 (“Motor / Thermal sensor / Temperature cable fault”): High motor temperature reported by the system (DRV1). Likely part: Moteur / Sonde thermique / Câble température (Moteur / Sonde thermique / Câble température).

Updated 2026-10-22 · LogrobotLM reference

What it means

High motor temperature reported by the system (DRV1). If the motor is actually cold, an anomaly in the thermal measurement circuit, the wiring or the acquisition may be the cause.

What to check

  • Check the actual temperature, allow to cool down if necessary and check ventilation/filter.
  • If the temperature is normal, check connectors, wiring and the thermal sensor circuit before replacing the motor/Drive.
  • Note: Cross-generation code (legacy/modern). A false fault with a cold motor points to the thermal measurement chain rather than to actual overheating.

Part to check / replace

ABB 20252 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

20253External device temperature high DRV137001Motor ON contactor activation error37003Power supply logique 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 →