What Should I Do If My Air Fryer Displays The E3 Error Code?
When an air fryer is overheating it's imperative that you unplug it from the socket and let it cool down for 15-30 minutes before you start it again. It's most likely caused by excessive oil or food.
An air fryer's basket shouldn't be stuffed to the brink as it will cause the air fryer to overheat. They're designed to operate at no more than 400 degrees Fahrenheit, adding more oil or food than recommended can raise the temperature even further.
More here
https://www.google.com/search?q=BREVILLE+HALO+ROTISSERIE+AIR+FRYER%2C+error+code+%3AE03
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Bad beeper? Some go to extraordinary lengths just to turn off the function. You could contact Breville customer service to see what they might be willing to do, even if out of warranty.
This is not a feature you can toggle! Look at what one party goes through just to kill the feature. https://www.fixya.com/support/t3566901-turn_off_annoying_beep_when_toast
I am wondering how you know the heating element is ok when in order to gain access to the terminals in order to check it for continuity, you would have naturally checked the circuit to the element as you dismantled the kettle...
It probably isn't the switch but of course it might be...
The new fangled disc elements aren't as long lasting as the traditional type and there is probably a thermal fuse buried somewhere inside close to the element.
If it is a cordless kettle, perhaps power isn't being delivered to the kettle from the base.
Either the circuit that is on is carrying a load that iis OK until you added sandwich maker. Is the toaster, toaster oven coffee pot being used at the same time? If not return it for a replacement. You paid for a new working unit and that is what you should get.
I would guess that most bread maker recipes would work. I would try the smallest loaf first, such as a 1lb. Or email manualsonline.com for a manual or contact the manufacturer. :-)