Fault E1 (Detailed 202) — Burner fault: ionization current too high

What does E1 mean?

The burner is in fault mode because the ionization current detected during calibration is too high. This current is crucial for detecting the flame, and an incorrect reading indicates a combustion issue.

• Ionization current too high during calibration

Click steps to track your progress.

1. 1

   Check the gap between the ionization electrode and the burner gauze assembly; adjust if necessary.

2. 2

   If operating in open flue mode, ensure the combustion air is free from very dusty conditions.

3. 3

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

4. 4

   If the issue reoccurs, contact a qualified technician for further inspection.