F.1 — Lack of Gas, Ignition, or Flue Fault (EcoMax Pro)

What does F.1 mean?

This indicates a problem preventing the EcoMax Pro boiler from igniting. Possible causes include an insufficient gas supply, an issue with the ignition system, or a fault in the flue.

• Lack of gas
• Fault with ignition system
• Fault with flue
• Gas valve adjustment needed
• Defective electrode lead

Click steps to track your progress.

1. 1

   Check if other gas appliances in your home are working to confirm your gas supply is active.

2. 2

   Restart the boiler by turning it off and on at the mains.

3. 3

   Ensure the flue outlet is not blocked or obstructed.

4. 4

   If the issue continues, contact a qualified heating engineer to inspect the gas valve and ignition components.