Fault E5 (Detailed 226) — Burner blocked: faulty flame amplifier

What does E5 mean?

The burner is blocked due to a fault with the flame amplifier. The flame amplifier is a crucial component for detecting and confirming the presence of a flame, and a fault here prevents the boiler from operating safely.

• Fault flame amplifier

Click steps to track your progress.

1. 1

   Press the reset button R on your boiler to attempt to clear the fault.

2. 2

   Ensure the boiler's power supply is stable and that there were no recent power fluctuations.

3. 3

   If the fault persists after multiple resets, it indicates a hardware failure. Contact a qualified technician to replace the control unit.