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The Smart Oven® with Element IQ® is a trustworthy tool for the cook who wants a countertop oven that roasts succulent meat, broils, bake pizza, reheas leftovers and toasts evenly. Convection setting reduces cooking time by up to 30%. Model: BOV800XL

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What is error E05?

I tested almost everything in this oven, but I never had a manual or documentation for the BOV800XL /A. The thermal fuse was continuous, the transistors, triacs, variable resistors, resistors, capacitors, etc. seemed fine. I did not check the transformer or relays. Here is a link to a version of the manual that vaguely describes the errors on page 54. My continuity test showed that the old oven sensor reads at about 125 kΩ at room temperature. Other sources say it should be in the range of several thousand ohms. Any suggestions/sources for E05 error code?

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@nathantafelsky E05 should be a failed Triac


If it read at 125kΩ then it might be a faulty sensor. A functioning oven sensor should read in the range of several thousand ohms at room temperature,


@oldturkey03 Both triacs had the same resistance across their anode-to-cathode, I think the triacs are fine. They don't show any signs of overheating, and current only flows in the direction it is supposed to.


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Error code E05 on the Breville BOV800XL toaster oven is a fault code that indicates a problem with the oven's temperature control system. The purpose of this error code is to alert the user that there is a problem with the oven's ability to regulate temperature and maintain safe operating conditions. The specific cause of the E05 error code can vary, as it can be triggered by a variety of different issues, such as a faulty temperature sensor, control board failure, or wiring issues. However, the purpose of the error code remains the same: to notify the user that there is a problem with the oven's temperature control system and that action is required to address the issue.

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Thanks for this explanation!


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I got this code while baking a cake, but also on the same circuit, I turned up an induction cooktop to max. I turned off the cooktop, and unplugged and replugged the toaster oven, and then it was fine.

So this error could possibly happen if something goes weird on your electricity for a moment.

Thank you to the others who explained what the error means.

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Nathan Tafelsky will be eternally grateful.
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