they do get pretty hot especially right below vent. i have replaced a zillion of the boards on electronic ovens and im convinced its for no other reason than excessive heat behind the board in that service compartment area building up (as heat is the eventual death of anything electrical). they nearly all have working fans but you simply cant vent enough heat out of that area. the one exception was a call i got on a thermador that was blowing out so much heat it burned her kids when they walked by the corner. upon arrival i noticed this built in was installed low in the cabinet putting the fan exit about head high for a little kid.dont know why maybe they had a midget cook. upon inspection i found this unit had a bad a-- fan motor , much bigger than ge or whilpool and it did remove some serious heat. pulled up the diagram and compared to what i was seeing and everything was hooked up properly and working as designed. then i realized i have never had to change a erc control or touchpad on this brand before and maybe thats why.