Step1: Shut off gas and electrical power, then allow the appliance to cool completely before starting work.
Step2: Remove burner access panel and disconnect the existing thermocouple from the gas control valve.
Step3: Route the new thermocouple along the original path, ensuring the tip sits securely in the pilot flame area.
Step4: Tighten all connections to the valve and secure mounting hardware without over-torquing fittings.
Step5: Restore gas supply, relight pilot, and check stable flame along with proper safety shutdown response.