Halftime oven issue

[Exnavydiver]

It sounds like you may have hit combination bake. This is both micro and convection. The racks should be able to stay in the oven when micro is used, just make sure that legs of the top rack are outside the bottom rack. If one leg is inside the bottom rack you will get sparking where they touch. We never saw any between the tray and pan but should be able to be used in either mode. The other option is that there is a problem with the control panel... Dave