F.416 — Burner locked out due to flue gas temperature sensor positioning

What does F.416 mean?

The burner is locked out because the flue gas temperature sensor is incorrectly positioned. This is a safety measure to prevent improper operation.

• Flue gas temperature sensor incorrectly positioned

Click steps to track your progress.

1. 1

   Carefully check the position of the flue gas temperature sensor.

2. 2

   Ensure the flue gas temperature sensor is correctly fitted and secured.

3. 3

   Perform a mains reset of the boiler by turning off and then on the power supply after repositioning the sensor.