F57 Fault — Active comfort protection mode regulation fault

What does F57 mean?

The active comfort protection mode has detected a regulation fault. This can be associated with a highly corroded ignition electrode.

• Active comfort protection mode has detected a regulation fault
• Ignition electrode highly corroded

Click steps to track your progress.

1. 1

   Check standing and working gas pressures (requires specialist tools).

2. 2

   Take combustion readings (requires specialist tools).

3. 3

   Check the filter on the inlet of the gas valve to ensure it is not blocked.

4. 4

   Perform a gas family check on the installer level (requires installer access).

5. 5

   Inspect the ignition electrode for corrosion and replace if necessary (contact a technician).