Castor iA0

Castor error code IA0 indicates: Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Lower spray arm rotation sensor missing pulses iA0; lower wash arm is stalled or rotation blocked..

The primary root cause for Castor code IA0 is: On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Tall plates, cutting boards, or cutlery handles protruding through basket blocking spray arm, missing arm magnet, or defective Hall sensor..

To resolve error code IA0: Rearrange lower basket loading so dishes do not contact spray arm. Inspect lower spray arm tip to confirm embedded magnet is present. Hold Start and Reset keys for 5 seconds until the display clears the alarm code and restores standby status.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Castor code IA0 persists, the physical component causing On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Tall plates, cutting boards, or cutlery handles protruding through basket blocking spray arm, missing arm magnet, or defective Hall sensor. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test 3-Phase Motor Windings / Tacho Generator / Carbon Brushes across Across phase pins U-V, V-W, U-W on motor harness; across tacho pins. Expected nominal reading is 3Ω–6Ω (BLDC phase U-V-W) / 60Ω–180Ω (Tacho coil) / 1.5Ω–3.5Ω (Universal stator). Tolerance: BLDC phase winding values must be strictly balanced within ±0.3Ω. Hand rotation generates 1V–4V AC on tacho..

Standard electrical safety protocol: 1. Disconnect 230V mains power before opening panels. 2. Verify zero voltage at test points. 3. Allow hot water or heating elements to cool below 30°C before handling.