C1 264 — Fan stopped or no control signal

What does C1 264 mean?

The boiler's fan has stopped operating or is not receiving a control signal or power supply. Proper fan function is crucial for safe combustion.

• Fan motor failure.
• No control signal to the fan.
• Interrupted power supply to the fan.
• Faulty fan harness or connector.

Click steps to track your progress.

1. 1

   Reset the boiler by pressing the reset button or power cycling at the mains.

2. 2

   Ensure there are no obstructions around the boiler's air intake or flue that could impede the fan.

3. 3

   Contact a Gas Safe registered engineer, as this issue requires checking electrical signals and fan components.