Field Actions
DISPATCHAlways disconnect appliance from 230V/400V mains before opening panels. Use CAT III multimeter for circuit testing.
Frequently Asked Questions: Nardi F18
FAQ TREEWhat does error code F18 mean on a Nardi appliance?
Nardi error code F18 indicates: Nardi LSI / LVI / LGI Built-in Stainless Steel Sump Integrated Dishwasher: Operational diagnostic fault code F18 signaled by internal electronics. Regeneration salt reservoir container magnetic reed float sensor circuit open or permanent empty alarm.
What is the root cause of Nardi error code F18?
The primary root cause for Nardi code F18 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: Magnetic float stuck at bottom of salt well with hardened salt crystals, or reed switch PCB damaged Multimeter diagnostic parameter: reed switch contact resistance <0.2 Ω when magnet approaches; infinite resistance (>10 MΩ) with float down..
How do I fix or resolve Nardi error code F18?
To resolve error code F18: Safely de-energize the appliance at the electrical distribution board. Unplug wiring connector from the affected component and verify with a digital multimeter: stir salt container to free stuck float, remove side reed sensor PCB and test switch with handheld magnet. 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.
Is it safe to clear Nardi error code F18 by resetting power?
Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Nardi code F18 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: Magnetic float stuck at bottom of salt well with hardened salt crystals, or reed switch PCB damaged Multimeter diagnostic parameter: reed switch contact resistance <0.2 Ω when magnet approaches; infinite resistance (>10 MΩ) with float down. must be inspected or replaced.
How do I test electrical resistance for Nardi code F18 using a multimeter?
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..
What safety protocol must be followed before servicing Nardi code F18?
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.
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