Whirlpool 4322452 Manual

A SERVICE OF

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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