I doubt it but i would still go through and pull the mainboard out, look on the backside and if you’re lucky it could be an obvious solder joint and/or relay that has failed.

My oven was not heating up, only the convection element worked (it's on 120VAC).

No 240VAC was present at either the bake or broil element. All elements tested good at 14-25 ohms.

It’s easy to replace the relay, just some good soldering work and nothing else can be damaged. Also the relay solder points are large, you wouldn’t need any magnifying equipement that you would need for smaller work.