Nardi C27

Nardi error code C27 indicates: Nardi PVF / PV43 Touch Control Induction & Electronic Flame Gas Cooktop: Operational diagnostic fault code C27 signaled by internal electronics. DC bus high-voltage filter capacitor degradation or excessive voltage ripple (>40V ripple peak-to-peak).

The primary root cause for Nardi code C27 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: Electrolytic DC bus capacitor electrolyte dried out, ESR risen excessively, or bridge rectifier diode leaky Multimeter diagnostic parameter: DC bus voltage nominal 310V to 330V DC under load; capacitor ESR must be <0.15 Ω at 100 kHz testing..

To resolve error code C27: Safely de-energize the appliance at the electrical distribution board. Unplug wiring connector from the affected component and verify with a digital multimeter: discharge DC bus safely and measure capacitance and ESR of power electrolytic capacitors on generator board. 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 C27 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: Electrolytic DC bus capacitor electrolyte dried out, ESR risen excessively, or bridge rectifier diode leaky Multimeter diagnostic parameter: DC bus voltage nominal 310V to 330V DC under load; capacitor ESR must be <0.15 Ω at 100 kHz testing. 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.