Whirlpool 4322452 - Manual (Page 76)

Page 6-6
TESTING AN OVEN TEMPERATURE SENSOR
Some oven controls use an oven temperature sensor (see Figure 6-5) to operate the bake, broil,
and self-clean functions. The oven temperature sensor is a “Resistance Temperature Detector
(RTD)” and is composed of a stainless steel tube with a thin film of platinum on the end. The sensor
is usually located inside the oven cavity at one of the upper rear corners. The RTD is nonadjustable,
but it may be checked with an ohmmeter at various temperatures. To test a switch:
1. Turn off the gas and electrical power to the range.
2. Unplug the connector from the oven temperature sensor.
3. Set the ohmmeter to the R x 10 position.
4. Touch the meter leads to the plug pins. The meter should indicate approximately 1100
Ω at
75 ˚F. For resistances at other temperatures, refer to the chart below. NOTE: The readings
are approximate.
Temperature (˚F) Resistance (
Ω
)
32 1000
75 1100
250 1450
350 1650
450 1850
550 2050
650 2230
900 2700
Oven Temperature
Sensor
Connector
Figure 6-5