Arthur Martin i5A

Arthur Martin error code I5A indicates: Arthur Martin ASF Series / Calypso / Electrolux Luxe Dishwasher: Circulation pump inverter heat sink thermal threshold reached i5A; power module de-rates or shuts down..

The primary root cause for Arthur Martin code I5A is: On Arthur Martin (Arthur Martin ASF Series / Calypso / Electrolux Luxe Dishwasher) models: Restricted airflow in bottom machinery compartment, sound deadening felt blanket shifted over inverter board, or high ambient heat..

To resolve error code I5A: Reposition sound insulation felt to ensure clear airflow channels around inverter heatsink. Clear dust from bottom chassis louvers. Hold Départ/Pause and Option buttons firmly for 5 seconds until the red indicator extinguishes and service memory resets.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Arthur Martin code I5A persists, the physical component causing On Arthur Martin (Arthur Martin ASF Series / Calypso / Electrolux Luxe Dishwasher) models: Restricted airflow in bottom machinery compartment, sound deadening felt blanket shifted over inverter board, or high ambient heat. 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.