Whirlpool ranges and ovens have a circuit board, commonly referred to as an electronic oven control board, or EOC, which functions as the brain of the oven. The EOC controls the heating elements in the oven, and relies on an oven sensor to detect the oven's internal temperature. If the EOC stops functioning, there are several troubleshooting steps you can take to determine the cause of the failure.
Fault Codes
Often when a component fails in your range or oven, a fault code is shown on the display of the EOC. The codes F0, F1, F5, F7 or F8 indicate a failure within the EOC itself. If that's the case, you need to replace the EOC. If the fault codes F2, F3 or F4 appear, the oven sensor has failed and must be replaced.
Safety Precautions
Before testing or repairing any component on your oven or range, you must shut off the power supply to the the appliance. Both ranges and wall ovens have their own breaker in your home's service panel, which is where you turn off the circuit. Whirlpool ranges also have a power cord that you can unplug to disconnect the power supply.
Heating Element
If a fault code doesn't appear but the oven will not heat, the problem is likely with the heating element. To test the heating element, remove the screws securing it to the rear wall of the oven. Pull the wire connectors off the element and remove it from the oven. Follow your multimeter's instruction manual to test the element for continuity. When it is functioning properly, the heating element has between 0 and 50 ohms of resistance.
Oven Sensor
If the heating element is functioning properly, the next element to test is the oven sensor. The sensor is secured to the top of the rear wall of the oven with two screws. With the screws removed, pull the oven sensor away from the wall and disconnect the wire connector. Insert the multimeter probes into the two terminals on the oven sensor. When functioning properly, the oven sensor has a resistance between 1,000 and 1,100 ohms. If the oven sensor is working properly, you must replace the EOC.
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