Nardi C18

Nardi error code C18 indicates: Nardi PVF / PV43 Touch Control Induction & Electronic Flame Gas Cooktop: Operational diagnostic fault code C18 signaled by internal electronics. LIN-bus serial communication parity error or physical data bus line shorted to ground or VCC.

The primary root cause for Nardi code C18 is: On Nardi kitchen suites engineered with planar induction coils, 100 kΩ surface thermistors, IGBT transistors with fast recovery diodes, 12V fan tachometer, and 230V spark pulse generators: LIN transceiver IC destroyed by static charge, pinched harness wire, or water droplet on bus pin Multimeter diagnostic parameter: recessive LIN bus voltage nominal +12.0V DC; dominant bit pulls bus voltage down to <1.2V DC..

To resolve error code C18: Safely de-energize the appliance at the electrical distribution board. Unplug wiring connector from the affected component and verify with a digital multimeter: measure DC voltage on LIN bus pin relative to chassis ground (expect active toggling between 1V and 12V DC). Inspect spade lugs for signs of heat discoloration. Replace defective component, restore electrical supply, and perform system reset: Isolate hob at the electrical fuse board for 90 seconds. Restore power and press the ON/OFF key three times within 5 seconds to clear faults.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Nardi code C18 persists, the physical component causing On Nardi kitchen suites engineered with planar induction coils, 100 kΩ surface thermistors, IGBT transistors with fast recovery diodes, 12V fan tachometer, and 230V spark pulse generators: LIN transceiver IC destroyed by static charge, pinched harness wire, or water droplet on bus pin Multimeter diagnostic parameter: recessive LIN bus voltage nominal +12.0V DC; dominant bit pulls bus voltage down to <1.2V DC. 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.