F.383, F.384 — Burner in fault state: Possible gas line contamination

What does F.383, F.384 mean?

The burner is in a fault state, possibly due to contamination in the gas line. This affects the boiler's ability to receive a clean and steady gas supply.

• Contamination of the gas line
• Insufficient gas supply pressure
• Faulty gas fan

Click steps to track your progress.

1. 1

   Visually check the gas line for any signs of contamination or blockages.

2. 2

   Verify the gas supply pressure. If unsure, contact your gas provider or a qualified technician.

3. 3

   Reset the boiler by briefly turning off and on its power supply. If the fault recurs, contact a qualified heating engineer.