Customer says the gas stove will heat up to 350 deg and then turn off.

Hi. I have attached the tech sheet for you. You would need to be Whirlpool certified to have access to their website for their technical product information and diagrams. I have seen this issue before with these direct spark ignition models. First, make sure the unit is plugged into a properly polarized outlet. Having a proper ground is critical on these units. Make sure no pans in the bottom drawer are sticking above the drawer. They can come into contact with the igniter in the back behind the drawer. The tip of the igniter housing may be dirty or corroded and need to be cleaned to get a proper spark. The igniter may need to be adjusted or replaced. Also, a ground wire can be added from the igniter to the cabinet to ensure a good ground. They have updated the wire harness for bake and broil on these units. Your model did not show up as the old harness so it should have the updated harness on it. The harness is p # W11161843. I have attached s bulletin and the theory of operation for DSI as well.