Newer
style ovens with an electronic range control (ERC) utilize a
temperature sensor inside the oven to regulate heating. This sensor
controls the cooking modes and usually the self-cleaning mode on those
models that have the option.
The sensor has a very specific
internal resistance that changes along with temperature. The sensor
goes bad when its resistance is changed through a faulty internal
connection or internal short.
How to Diagnose?
You
can remove the sensor and check its resistance. It should read about
1100 ohms at room temperature. If the reading is off more than about 50
ohms, replace the sensor.
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