Castor i52

Castor error code I52 indicates: Castor CDF Series / Lavastoviglie Silenziosa Dishwasher: Circulation pump motor tachometer signal missing i52; motor starts, vibrates, and shuts down after 3 seconds..

The primary root cause for Castor code I52 is: On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Tachometer generator coil open circuit (nominal 200–260 Ω on tachometer equipped models), detached rear magnet, or broken wiring in harness..

To resolve error code I52: Measure tachometer coil resistance across motor tachometer terminals (200–260 Ω). Check magnet integrity on rear rotor shaft. 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 I52 persists, the physical component causing On Castor (Castor CDF Series / Lavastoviglie Silenziosa Dishwasher) models: Tachometer generator coil open circuit (nominal 200–260 Ω on tachometer equipped models), detached rear magnet, or broken wiring in harness. 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.