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Bosch Convection Double Oven - Sparks Fly!

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Oven Repair (including Ranges and Cooktops)

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Last night, we turned on our upper convection oven to preheat it on Convection Bake, and minutes later, my wife

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Old 09-29-2012, 10:36 AM
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Exclamation Bosch Convection Double Oven - Sparks Fly!
Model Number: HBL455AUC   Brand: Bosch   Age: 5 - 10 years   

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Last night, we turned on our upper convection oven to preheat it on Convection Bake, and minutes later, my wife heard popping sounds and saw sparks from the vent at the lower right corner of the back cover of the oven.

I took the rear cover plate off today, and found charring and fusing of the right side of the circular heating element coil (closest to the rear cover. Pulled the oven out and removed the element, which promptly broke in half where the charring was.

BTW, the convection fan continued to run afterwards, but the upper oven was not heating at all. Don't know if the conventional heating element is automatically disabled in convection mode if the convection heating element fails.

So I know I need to replace the element, but what else would the electrical short have taken out? Are there any replaceable fuses? I'd like to order any required replacement parts at the same time. Any advice would be appreciated!


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  #2 (permalink)  
Old 09-29-2012, 11:26 AM
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Default

I think I answered my own question after looking at the schematics. It appears that only the rear heating element is active in convection bake mode. I probably should have checked the other bake modes before tearing it apart, but it looks like I'll be OK with just ordering the heating element.

The interesting thing about this is that the oven is 8 years old, and we NEVER used convection mode until recently. First, the fan went out, and now the heating element. I guess things are more likely to fail if they haven't been used in a long time.
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Old 04-27-2013, 05:16 AM
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Default Bosch Double Oven Sparking

We did use our convection oven about a dozen times a year, so I don't think non-use contributed. Our double oven is 9 years old. My husband knew it was the convection. Thanks to your post, we know that the oven is salvageable and what to replace.
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