Step1: Turn off gas and electrical power and allow oven to fully cool before servicing.
Step2: Remove control panel and disconnect old thermostat capillary tube and wiring carefully.
Step3: Install new thermostat in original mounting position and secure firmly.
Step4: Route sensing bulb into oven cavity, avoiding sharp bends or contact with hot surfaces.
Step5: Reconnect wiring and gas capillary connections per wiring diagram.
Step6: Restore power and gas, then test temperature control and verify safe cycling operation.