270 — Overheating exchanger

What does 270 mean?

The heat exchanger within the boiler has overheated, leading to a safety shutdown. This typically indicates a problem with heat dissipation.

• Poor water circulation in the heating system
• Scale build-up or blockages within the heat exchanger
• Pump issues

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

   Check the boiler's pressure and top up if it's too low (refer to 'FILLING THE SYSTEM').

3. 3

   Ensure radiators are bled and all radiator valves are open to allow proper circulation.

4. 4

   If the fault persists, contact an Authorised Service Centre to inspect the heat exchanger and circulation.