F.29 - Failure during operation: Re-ignition unsuccessful

What does F.29 mean?

The boiler failed to re-ignite during normal operation. This can be caused by a temporary interruption in gas supply, flue gas issues, or problems with the ignition system.

• Gas supply temporarily stopped.
• Flue gas recirculation or condensate duct blocked.
• Defective earthing of the product.
• Ignition transformer has a spark failure.

Click steps to track your progress.

1. 1

   Press the reset button on the boiler display up to three times to try and clear the fault.

2. 2

   Check the main gas supply to ensure it has not been temporarily interrupted (e.g., by other gas appliances being used or gas supply issues).

3. 3

   Check for any obvious blockages in the condensate duct and clear if necessary.

4. 4

   Contact customer service. This fault has several potential causes related to gas supply, flue gas, and the ignition system that require professional diagnosis.