18 — Hydraulic circuit automatic filling in progress

What does 18 mean?

The boiler is currently undergoing an automatic filling cycle for the hydraulic circuit. This is a normal operation to maintain system pressure, not a fault.

• The system is automatically adding water to maintain pressure

Click steps to track your progress.

1. 1

   Wait for the automatic filling cycle to complete.

2. 2

   Monitor the pressure gauge after the cycle finishes to ensure the pressure is stable and within the recommended range.

3. 3

   If the filling cycle seems to run too often, contact an Authorised Service Centre to check for potential leaks.