Step1: Turn off gas and electrical supply, and allow unit to cool completely for safety.
Step2: Remove access panel to reach the pilot assembly.
Step3: Disconnect the faulty thermocouple from the control valve.
Step4: Insert and position the new thermocouple into the pilot bracket securely.
Step5: Tighten connections carefully, avoiding over-tightening or damage.
Step6: Restore supply and test ignition to confirm proper operation.
Step7: Wear heat-resistant gloves and check for gas leaks after installation.