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Jenn Air Oven Doesn't Bake Evenly

JES8850AAB

The part(s) or condition(s) listed below for the symptom Oven doesn't bake evenly are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.

Most Frequent Causes for Oven doesn't bake evenly

Cause 1Bake Element

If the bake element is burned out, the oven will only be heated by the broil element. This will cause the oven to heat unevenly. When the bake element is heating properly, it glows red hot. If the element does not glow red, this indicates that the element is not heating. Often, if the element has burned out, it will be visibly damaged. Inspect the bake element for holes or blisters. To determine if the bake element has burned out, use a multimeter to test the element for continuity. If the bake element does not have continuity, replace it..

Part Testing
Parts
Bake Element for your Jenn AirRange/Stove/Oven
Bake Element - Part # 1184162 Mfg Part # WP74010750

Oven bake element with push-on terminal ends. It is not unusual for a bake element to short out and arc in one spot. If this occurs, disconnect the power to the stove until the element has been replaced.

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Cause 2Broil Element

If the broil element is burned out, only the bake element will heat the oven. This will cause the oven to heat unevenly. When the broil element is heating properly, it glows red hot. If the element does not glow red, this indicates that the element is not heating. Often, if the element has burned out, it will be visibly damaged. Inspect the broil element for holes or blisters. To determine if the broil element has burned out, use a multimeter to test the element for continuity. If the broil element does not have continuity, replace it.

Part Testing
Parts
Broil Element for your Jenn AirRange/Stove/Oven
Broil Element - Part # 703166 Mfg Part # WP74003042
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Cause 3Temperature Sensor

The oven sensor works with the oven control board to regulate the oven temperature. If there is an oven temperature problem, this sensor might be defective. The sensor can be tested by using an ohm meter. As temperature rises, the resistance measurement also rises. The manufacturer of the oven sensor determines the correct resistance, if we have a testing video associated with this part, watch it to learn how to test the oven sensor. Oven temperature problems can be caused by other things, but this is one of the common causes.

Part Testing
Parts
Temperature Sensor for your Jenn AirRange/Stove/Oven
Temperature Sensor - Part # 1364 Mfg Part # 12001656

Oven temperature sensor kit, 6 inches long. The sensor includes two wire harness adapters for a variety of applications and installation instructions.

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Cause 4Oven Control Board

The oven control board works in conjunction with the oven sensor to regulate the temperature. The sensor regulates the oven temperature by varying its resistance to electrical current as the oven temperature varies. As the oven temperature rises, the oven sensor creates greater resistance. If the sensor gives the wrong amount of resistance, the oven may not bake evenly. Or if the oven control board does not read the sensor resistance correctly the oven temperature can be inaccurate. On some models, you can recalibrate the oven control up to 35 degrees Fahrenheit higher or lower. Refer to your owner’s manual for instructions on how to recalibrate the oven control.

Parts
Oven Control Board for your Jenn AirRange/Stove/Oven
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Cause 5Oven Control Board

The oven control board works in conjunction with the oven sensor to regulate the temperature. The sensor regulates the oven temperature by varying its resistance to electrical current as the oven temperature varies. As the oven temperature rises, the oven sensor creates greater resistance. If the sensor gives the wrong amount of resistance, the oven may not bake evenly. Or if the oven control board does not read the sensor resistance correctly the oven temperature can be inaccurate. On some models, you can recalibrate the oven control up to 35 degrees Fahrenheit higher or lower. Refer to your owner’s manual for instructions on how to recalibrate the oven control.

Parts
Oven Control Board for your Jenn AirRange/Stove/Oven
Oven Control Board - Part # 4436348 Mfg Part # WP74009316

Electronic oven control with wire harness

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