The sound you're probably hearing is a relay, an electrically operated switch. Despite being part of an electrical system, there's a small mechanical part which moves as part of opening or closing a circuit. read more
Turning on the oven closes the switch to close the circuit which powers the heating elements, which gives you a click. When the thermostat in the oven reaches temperature, the switch is thrown in the other direction, opening the circuit and turning off the heating element, which produces another click. read more
What you are hearing are the control relays cycling the bake and broil elements on and off to accurately maintain oven temperature. This is normal. Due to the precise control our ovens have, you may hear more relay noise than in older ovens. read more
That's just what it does. To stop that, you would have to replace the mechanical thermostat with an electronic temperature control system. If you have to ask how, you're not up to the task. It would be an annoying and expensive totally custom project. read more