Step1: Shut off the gas supply and disconnect electrical power to the equipment before servicing.
Step2: Remove the burner access panel to reach the existing pilot assembly.
Step3: Label and disconnect the pilot tubing, thermocouple, and ignition wire carefully.
Step4: Remove mounting screws and take out the old pilot assembly from the burner bracket.
Step5: Install the new pilot assembly in the same orientation and secure it firmly.
Step6: Reconnect the gas line, thermocouple, and igniter wiring to the correct fittings.
Step7: Restore gas and power, then check all connections for leaks using a soap solution.