Fault E7 (Detailed 192) — Burner fault: ionization current too low

What does E7 mean?

The burner is in fault mode because the ionization current detected during calibration is too low. A low ionization current can mean the flame is not strong enough or not being properly detected.

• Ionization current too low during calibration

Click steps to track your progress.

1. 1

   Check the ionization electrode: verify its distance to the burner gauze assembly and check for contamination.

2. 2

   Inspect the connecting lead and plug-in connections for the ionization electrode for any looseness or damage.

3. 3

   Check the flue system and remedy any flue gas recirculation if detected.

4. 4

   Press the reset button R on your boiler.