Nardi F22

Nardi error code F22 indicates: Nardi LSI / LVI / LGI Built-in Stainless Steel Sump Integrated Dishwasher: Operational diagnostic fault code F22 signaled by internal electronics. Water diversion alternating spray valve actuator motor open circuit or cam disc mechanically jammed.

The primary root cause for Nardi code F22 is: On Nardi kitchen suites engineered with Bitron wash hydraulics, 2040W flow-through heater (26-28 Ω), 10 kΩ wash NTC, synchronous drain motor (160-220 Ω), and AquaStop float protection: Synchronous micro-motor gear stripped, food grit jamming rotating ceramic disc, or position switch open Multimeter diagnostic parameter: alternating valve motor winding nominal 8.5 kΩ to 11.5 kΩ at 20°C (230V AC); position microswitch <0.2 Ω..

To resolve error code F22: Safely de-energize the appliance at the electrical distribution board. Unplug wiring connector from the affected component and verify with a digital multimeter: measure resistance across alternating valve motor pins (8.5-11.5 kΩ) and verify position switch continuity. Inspect spade lugs for signs of heat discoloration. Replace defective component, restore electrical supply, and perform system reset: Close door securely. Hold Program Selection button for 5 seconds while turning power switch ON; release when program LEDs sequence to reset.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Nardi code F22 persists, the physical component causing On Nardi kitchen suites engineered with Bitron wash hydraulics, 2040W flow-through heater (26-28 Ω), 10 kΩ wash NTC, synchronous drain motor (160-220 Ω), and AquaStop float protection: Synchronous micro-motor gear stripped, food grit jamming rotating ceramic disc, or position switch open Multimeter diagnostic parameter: alternating valve motor winding nominal 8.5 kΩ to 11.5 kΩ at 20°C (230V AC); position microswitch <0.2 Ω. must be inspected or replaced.

Set a digital multimeter to ohms (Ω). Disconnect power and test NTC Temperature Sensor Probe (Thermistor) across Across sensor pins 1-2 (unplugged harness). Expected nominal reading is 4.8kΩ–12kΩ (at 20°C–25°C). Tolerance: Negative temperature coefficient: resistance drops smoothly when warmed with fingers. OL = open circuit..

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.