Ariston F01

Ariston error code F01 indicates: Ariston Hotpoint-Ariston Aqualtis Heat Pump Tumble Dryer: Drum drive motor relay or triac failure F01; power PCB detects uncommanded drum rotation or shorted motor driver..

The primary root cause for Ariston code F01 is: On Ariston tumble dryers (Ariston Italian ergonomic chassis engineering and Bitron / EVO-II microprocessor bus platform): Welded motor start relay contacts on control board, or short-circuited motor triac semiconductor..

To resolve error code F01: Disconnect mains power. Measure resistance across motor driver triac terminals (short = 0 Ω). Inspect power board for scorched relay pads. Hold Start/Pause key for 5 seconds until indicator extinguishes, rotate program dial to 0, and clean lint trap.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Ariston code F01 persists, the physical component causing On Ariston tumble dryers (Ariston Italian ergonomic chassis engineering and Bitron / EVO-II microprocessor bus platform): Welded motor start relay contacts on control board, or short-circuited motor triac semiconductor. 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.