Samsung DV456EWHDSU/AA User Manual Ver.1.0 (English) - Page 8

TROUBLE SHOOTING WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power. COMPONENT TESTING PROCEDURES Component Electrical Testing (with ohmmeter)   Thermistor resistance 10K Ω @ 25°C 77°F  Thermostat 1 resistance < 1Ω Belt Cut-off S/W - Lever open: Resistance value < 1Ω - Lever push: Resistance value : ∞ Ω  Thermostat 3 resistance < 1Ω  Lamp resistance 80~100 Ω (Blue & White) - If resistance is infinity, replace thermostat 3.  Thermostat 2 resistance < 1Ω - If resistance is infinity, replace thermostat 2.  Heater resistance 10 Ω - If resistance is infinity, replace Heater.  Measure resistance of the following terminal 1) Door switch : open Terminal : "COM" - "NC" (1-3) :