If you need to change it, you can go up, and you'd find, we're looking at this, so the 20 amp is the bottom one, that's our spare, then these are all color coded, and each color represents an amperage, so 20 is this yellow, 15s are this blue, and then so now we're up four, this next 20 is the front power socket, so you can either use take needle-nose pliers and pull this out, or at the very top of this fuse panel, there's often a tool to help you remove the fuses
Therefore, if smoke is not emanating from the burner, then it may be coming from the heating elements
That has her concerned
At least, thats the theory theres scant data on what they actually release, and how that varies from brand to brand