F.67 - Implausible flame signal/Electronics fault

What does F.67 mean?

The boiler is detecting an implausible or incorrect flame signal, which could indicate a problem with the flame detection system or the main electronics.

• An implausible flame signal is being detected.
• The boiler's internal electronics are defective.

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

   Contact customer service. This indicates an issue with the flame detection system or the main electronics.

3. 3

   A qualified technician will need to diagnose the flame sensor and the main PCB for correct operation.