Reading a thermistor chart (NTC temperature sensors)

Most appliance temperature sensors are NTC thermistors: resistance falls as temperature rises, and the curve is not linear. Measure the sensor's real temperature, measure its resistance, and compare with the model's own chart. A 10 kΩ NTC reads about 10,000 Ω at 77 °F (25 °C), but curves differ by maker.

Cross-checked ~20 min easyBrands: All

Before you start

Power off and verified 0 V before measuring sensor resistance

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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