Thread: kitchen aid oven, two problems

i am trying to service a kitchen aid mod.kgra8065psso or maybe kgra806spsso. caint read my own wrighting some times. ser.x50616329. there are two problems. #1 it has blown the thermal protector twice when put into clean. #2 i caint hardly get it above 300 degrees. if i set it to 375 it will get up to around 300 and i can hear the burner cutting on and off every few minutes, but it doesn't want to go any higher. i have changed the erc and sensor to no avail. the cooling fan that blows air down the rear of the oven comes on in the bake mode as it should so i don't it is a problem. i'm stumped and don't have access to wp tech for help.