Ariston F16

Ariston error code F16 indicates: Ariston Hotpoint-Ariston Aqualtis & Natis Washing Machine: Drum lock top-loader safety interlock fault F16; microswitch indicates drum gate not secured at spin cycle initiation..

The primary root cause for Ariston code F16 is: On Ariston top-loading washers: Drum access flap latch not fully clicked into keeper, broken mechanical gate catch, or failed optical sensor beam..

To resolve error code F16: Open top lid and manually confirm positive click-lock of both drum flap latches. Inspect gate spring hinges. Measure gate switch continuity (< 1 Ω closed). Turn selector to Off, press and hold Start/Cancel button until display resets and door unlock pulse clicks.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Ariston code F16 persists, the physical component causing On Ariston top-loading washers: Drum access flap latch not fully clicked into keeper, broken mechanical gate catch, or failed optical sensor beam. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test PTC Heater Pellet / Pulse Solenoid / Microswitch Contacts across Across PTC heater terminals on lock bezel; switch contact reads <0.2Ω when locked. Expected nominal reading is 800Ω–1.5kΩ (PTC terminals L-N) / 60Ω–120Ω (Pulse Solenoid). Tolerance: ±15%. Switch contacts must read open (OL) when unlocked and 0.0Ω–0.2Ω when fully latched..

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.