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HomeRepair HelpBosch Oven RepairBosch Oven doesn't bake evenly Repair
Bosch Oven doesn't bake evenly
When your Bosch oven is not baking evenly, food may cook faster on one side, leave hot spots, or come out underbaked in some areas. The most likely cause is a failed bake element. When the bake element does not glow red or lacks continuity, the oven relies too heavily on the broil element and cannot distribute heat properly. Next, check the relay board, which sends voltage to the broil element or gas igniter. A defective relay board can keep the broiler from working. On a gas Bosch oven, a weak igniter may take more than 90 seconds to ignite the burner, causing oven temperature problems and uneven baking. A damaged or clogged gas burner tube can also distribute heat unevenly. Less commonly, the broil element or bake burner tube may be burned out, corroded, deformed, or damaged. These are common reasons an oven is not cooking evenly or an oven is baking unevenly. Before ordering a bake element, relay board, igniter, gas burner, or burner tube, enter your model number to find the exact replacement part for your Bosch range, stove, or oven.
01 - Bosch Range/Stove/Oven Bake 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..
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02 - Bosch Range/Stove/Oven Relay Board
On some range or oven models, a relay board will be used to send voltage to the broil element or the igniter. If the relay board is defective, the voltage may not be sent to the component and the oven broiler will not work. You can inspect the board for signs of damage or a shorted component. You can also use a multimeter to test for voltage reaching the broil element or igniter after reviewing the appliance's wiring diagram.
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03 - Bosch Range/Stove/Oven Igniter
The igniter draws electrical current through the oven safety valve bimetal to open the valve letting gas into the oven burner and igniting it. If the oven igniter weakens it can take longer than normal to open the safety valve causing oven temperature issues. To determine if the igniter is defective, observe the igniter when the oven is heating. If the igniter glows for more than 90 seconds without igniting the gas flame, this indicates that the igniter is too weak to open the oven safety valve correctly. If the igniter is weak, replace it.
Highly Likely
04 - Bosch Range/Stove/Oven Gas Burner
Examine the gas burner tube to see if the metal has deteriorated, or if the holes in the tube are clogged or misshapen. This can cause the heat produced from the burner to not be distributed evenly resulting in unsatisfactory baking results. If the gas burner tube shows any signs of damage, it should be replaced.
Highly Likely
05 - Bosch Range/Stove/Oven Broil 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.
Common
06 - Bosch Range/Stove/Oven Burner Tube
If the bake burner tube is deformed or corroded, it may not be able to heat the oven evenly. Inspect the tube for corrosion or damage and replace if necessary.
Common
Frequently Asked Questions
Why is my Bosch oven not baking evenly?
How do I test a Bosch oven bake element or broil element?
Can a weak oven igniter cause uneven baking in a Bosch gas oven?
Could the Bosch relay board be causing my oven temperature problem?
How do I find the correct replacement part for my Bosch oven?
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