Breville BOV800XL Smart Oven 1800-Watt Convection Toaster...SIWAPHONG KIATTALERNGRIT
The issue is with the push button on the "Control PCB". It appears that one of the legs in the switch no longer connects or shorts and it causes it to trigger the "Convection" button instead. The fix is to replace that switch or order a new circuit board. I ended up un-soldering ...