Step1: Shut off power and gas supply, then confirm the burner system is fully cool.
Step2: Remove the existing flame sensor and note wiring placement on the terminal.
Step3: Install the new flame sensor into the same bracket, ensuring correct flame exposure position.
Step4: Reconnect the terminal securely, avoiding loose or oxidized connections.
Step5: Tighten mounting hardware so the probe remains stable in the flame path.
Step6: Restore power and gas, then check flame detection and proper shutdown response.