B2-B6 — Data error

What does B2, B3, B4, B5, B6 mean?

The boiler has encountered a data error, indicating a problem with internal data processing or storage. This can prevent the boiler from functioning correctly.

• Corrupted internal data.
• Control board malfunction.
• Software issue.

Click steps to track your progress.

1. 1

   Reset the boiler by pressing the reset button on the control panel.

2. 2

   If the reset does not clear the error, try power cycling the boiler by turning off the mains power for 30 seconds.

3. 3

   If these data errors persist, contact a qualified heating engineer to diagnose the control board or software.