E5 — Temperature at the burner NTC exceeded

What does E5 mean?

The NTC sensor responsible for monitoring the burner temperature has detected a temperature higher than the allowed limit. This indicates a potential overheating issue.

• Burner NTC sensor is faulty or providing an incorrect reading.
• The heating system is not properly vented, causing localized overheating.
• An internal fault causing the burner temperature to rise excessively.

Click steps to track your progress.

1. 1

   Check the burner NTC sensor and its connection cable for any visible damage or loose connections.

2. 2

   Vent the entire heating system to ensure that there are no air pockets causing blockages or overheating.

3. 3

   If the issue persists, the sensor itself or the main circuit board may require professional inspection or replacement.