Fault 8 — Flue gas temperature has exceeded monitoring limit

What does 8 mean?

The flue gas temperature has exceeded its safety monitoring limit. This indicates a potential issue with the boiler's exhaust system or internal combustion, leading to dangerously high exhaust temperatures.

• Flue gas temperature has exceeded the monitoring limit

Click steps to track your progress.

1. 1

   Check the flue gas temperature sensor for any visible damage or loose connections.

2. 2

   Inspect the flue system for any blockages or restrictions that might prevent proper exhaust.

3. 3

   Ensure the boiler's fan is operating correctly to expel flue gases.

4. 4

   Press the reset button R on the boiler once the system has cooled down.