E19 — Maximum water refill time exceeded

What does E19 mean?

The boiler's automatic water refill function has exceeded the maximum allowed time, suggesting a problem with filling the system.

• Insufficient water supply to the boiler.
• Obstruction in the refill hydraulic system.
• A significant leak in the heating system preventing the boiler from reaching the target pressure.

Click steps to track your progress.

1. 1

   Check that the main water supply to your property is fully open.

2. 2

   Check the system water pressure on the boiler's gauge. If it's very low or not increasing, check for visible leaks in the heating system.

3. 3

   If the problem persists, a qualified technician should inspect the boiler's refill hydraulic system.