Samet H18

Samet error code H18 indicates: Samet Enamelled Vitroceramic & Induction Cooktop with Safety Gas Burners: Operational diagnostic fault code H18 signaled by internal electronics. Mains AC electrical supply undervoltage detected on induction power module (<175V AC RMS).

The primary root cause for Samet code H18 is: On Samet kitchen suites engineered with resonant induction generator inverter stage, 100 kΩ coil thermistor, 10 kΩ heatsink NTC, 12V DC fan with tachometer, and fast gas safety thermocouples: Loose neutral or phase screw terminal in junction box, severe branch sag, or regional brownout Multimeter diagnostic parameter: minimum permissible voltage under full induction load 195V AC; voltages <175V AC inhibit inverter gate pulses..

To resolve error code H18: 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 input voltage while engaging power booster to observe instantaneous voltage drop across supply line. Inspect spade lugs for signs of heat discoloration. Replace defective component, restore electrical supply, and perform system reset: Switch off electrical isolator switch for 60 seconds. Restore power, touch Key Lock key for 7 seconds continuously until lock icon turns off.

Resetting power (unplugging for 5–10 minutes) clears temporary memory errors. However, if Samet code H18 persists, the physical component causing On Samet kitchen suites engineered with resonant induction generator inverter stage, 100 kΩ coil thermistor, 10 kΩ heatsink NTC, 12V DC fan with tachometer, and fast gas safety thermocouples: Loose neutral or phase screw terminal in junction box, severe branch sag, or regional brownout Multimeter diagnostic parameter: minimum permissible voltage under full induction load 195V AC; voltages <175V AC inhibit inverter gate pulses. 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.