135 — Internal board error

What does 135 mean?

An internal error has occurred within the boiler's electronic control board. This indicates a problem with the core electronics.

• Faulty electronic board

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 and continuous power supply.

3. 3

   If the fault persists, contact an Authorised Service Centre, as the electronic board may need inspection or replacement.