15 — Gas valve control error

What does 15 mean?

The electronic board is unable to properly control the gas valve, which is essential for burner operation. This can prevent the boiler from heating.

• Loose or faulty connections between the gas valve and the electronic board
• A fault with the electronic board itself

Click steps to track your progress.

1. 1

   Press and hold down the Reset button for 2 seconds to try clearing the fault.

2. 2

   Ensure the boiler has a stable power supply and that the gas tap is fully open.

3. 3

   If the fault persists, contact an Authorised Service Centre for inspection of connections or board replacement.