Nardi Er18

Nardi error code ER18 indicates: Nardi FEX / FEA / FRA Built-in Electric Multifunction & Pyrolytic Italian Oven: Operational diagnostic fault code Er18 signaled by internal electronics. Supply operating voltage too low under load (<185 VAC RMS recorded on main terminal block).

The primary root cause for Nardi code ER18 is: On Nardi kitchen suites engineered with PT500 temperature sensor (540 Ω at 20°C), shaded-pole tangential cooling motor, 2200W circular turbo heater, motorized latch, and electronic relay board: Loose neutral wire at terminal block, undersized supply cabling, or regional utility brownout condition Multimeter diagnostic parameter: mains voltage must remain between 207 VAC and 253 VAC RMS (230V ±10%) with heating elements energized..

To resolve error code ER18: Safely de-energize the appliance at the electrical distribution board. Unplug wiring connector from the affected component and verify with a digital multimeter: measure AC voltage between Line and Neutral directly at the rear terminal block while activating bake mode. Inspect spade lugs for signs of heat discoloration. Replace defective component, restore electrical supply, and perform system reset: Turn mode dial to 0. Press and hold Clock and Stop buttons for 5 seconds until buzzer beeps twice, resetting internal microprocessor error log.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Nardi code ER18 persists, the physical component causing On Nardi kitchen suites engineered with PT500 temperature sensor (540 Ω at 20°C), shaded-pole tangential cooling motor, 2200W circular turbo heater, motorized latch, and electronic relay board: Loose neutral wire at terminal block, undersized supply cabling, or regional utility brownout condition Multimeter diagnostic parameter: mains voltage must remain between 207 VAC and 253 VAC RMS (230V ±10%) with heating elements energized. 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.