Display not illuminated - Boiler has no power or a circuit fault

What does No Display mean?

The boiler's control panel display is completely dark and unresponsive. This indicates a loss of electrical power to the boiler or a critical internal electrical fault.

• No electrical supply to the boiler
• Blown fuse in the boiler or external circuit
• Loose wiring connection
• Main or display PCB fault

Click steps to track your progress.

1. 1

   Check if the boiler's power switch is in the "On" position.

2. 2

   Verify that other electrical appliances in your home are working to ensure general power supply.

3. 3

   Check the boiler's external fuse (if safely accessible) and replace it if it is blown.

4. 4

   If the display remains off, contact a qualified heating engineer to check internal wiring and components.