Bosch Wall oven is producing a burning smell

A Bosch wall oven producing a burning smell may have a failed temperature control thermostat, control board, or main control board. The thermostat regulates broiler temperature, and a defect can prevent the broil element from operating correctly. The control board and main control board use relays to send voltage to heating components, so a failed relay may create an electrical burning smell from the oven or stop the elements from heating. Next, inspect the bake element and broil element for holes, blisters, or other visible damage. A properly working element should glow red during operation. Disconnect power and use a multimeter to test each element for continuity, replacing any element that fails the test. On an electric Bosch wall oven, also check the terminal block and power cord connections for loose, overheated, or melted wires. Do not use the oven if you see burned wiring or smell strong electrical odor. The defective part may be the thermostat, control board, main control board, bake element, broil element, or terminal block. Enter your Bosch wall oven model number to find the exact replacement part for your specific appliance.

01 - Bosch Range/Stove/Oven Temperature Control Thermostat

The temperature control thermostat regulates the broiler temperature. If the thermostat is defective, it may fail to heat the broiler element. The oven thermostat is not repairable—if the thermostat is defective, you must replace it.

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02 - Bosch Range/Stove/Oven Control Board

The control board has relays that send voltage to the surface element circuits according to the user settings and sensor input. If the control board is defective, it may not send voltage to the heating components.

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03 - Bosch Range/Stove/Oven Main Control Board

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04 - Bosch Range/Stove/Oven Bake 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.

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05 - Bosch Range/Stove/Oven Broil Element

The broil element may have burned out. 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.

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Highly Likely

06 - Bosch Range/Stove/Oven Terminal Block

If the power cord connections in the terminal block on your electric range are not secure the wire can overheat, burning the connections on the terminal block, and melting the coating on the wires. Check to ensure the connections are tight and not burnt. If the terminal block connectors are burnt, the terminal block should be replaced. If the power cord terminal connectors are burnt or damaged, the power cord should be replaced. If the power cord prongs are burnt, a new power cord should be installed and the receptacle checked and replaced if necessary by a licenced electrician.

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Common

Frequently Asked Questions

What should I do if my Bosch wall oven smells like it is burning?

Can a bake or broil element cause a burning smell in my Bosch wall oven?

Why does my Bosch oven smell like burning and not heat properly?

Can the terminal block cause a burning smell from a Bosch wall oven?

How do I find the correct Bosch wall oven part for this repair?

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