Fault E2 (Detailed 201) — Burner fault: low heating water flow rate

What does E2 mean?

The burner is in fault mode because the heating water flow rate is too low during calibration. Insufficient water flow can lead to overheating and prevent the boiler from operating correctly.

• Heating water flow rate too low during calibration

Click steps to track your progress.

1. 1

   Ensure there is adequate circulation volume in the heating system; check system pressure.

2. 2

   Check the boiler pump flow to ensure it is operating correctly.

3. 3

   Inspect the system for any scaling or blockages that might restrict water flow.

4. 4

   Press the reset button R on your boiler.