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Jenn Air Oven Not Heating

JES8850AAB

The part(s) or condition(s) listed below for the symptom Oven not heating 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 not heating

Cause 1Bake Element

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 heating element has burned out, it will be visibly damaged. Inspect the heating 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

Inspect the broil element for holes or blisters. 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 broil element has burned out, it will be visibly damaged. 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 3Incoming Power Problem

Electric ovens require 240 volts of alternating current. Gas ovens require 120 volts. If an oven won't turn on there could be an incoming power problem. To determine if the electrical outlet is providing sufficient voltage, use a multimeter to test the incoming power at the wall socket.

Cause 4Loose or Burnt Wire Connection

One of the wires that supply power to the oven element or igniter might be burnt out. These wires commonly burn out near the heat source. To determine if a wire has burned out, inspect the wires leading to the element or igniter. If a wire is burned out, it will often be visibly burnt.

Cause 5Oven Control Board

The oven control board has relays that send voltage to the bake and broil circuits according to the user settings and sensor input. If the control board is defective, it may not send voltage to the heating components. However, this is rarely the case. Before replacing the control board, first test all of the heating components. If you determine that all of the heating components are working properly, replace the oven control board. Since it’s not easy to test the oven control board, you will have to replace the control board if you suspect it is defective.

Parts
Oven Control Board for your Jenn AirRange/Stove/Oven
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Cause 6Oven Control Board

The oven control board has relays that send voltage to the bake and broil circuits according to the user settings and sensor input. If the control board is defective, it may not send voltage to the heating components. However, this is rarely the case. Before replacing the control board, first test all of the heating components. If you determine that all of the heating components are working properly, replace the oven control board. Since it’s not easy to test the oven control board, you will have to replace the control board if you suspect it is defective.

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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