I have a kitchenaid gas oven kgrs807sbl01. Ally my top burners work fine. My oven when I put it on bake at 350 it will start preheating then turn off at 333 degrees and will not come back on. The broil does the same thing. Then sometimes it will only come on for 10 to 20 seconds then cycle off. Any ideas or things I might be able to test I have a multimeter but don’t know exactly how to use it. Thanks for any help
The bad news is: if you have used the self cleaning program recently, you have probably ruined the main power board. These stoves are notorious for overheating their electronics boards. I have just finished replacing the main power board (P/N 9762774) on a KGSS907SWH. the symptoms were exactly as you describe. Hopefully you did not affect your Spark /ignition board too. Search the internet for that part.