Heater shows E15 and shuts down, often during high temperature operation.
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Possible Causes
How to Fix / Troubleshooting
Safety: Flue gas issues are serious. Turn off the heater and do not operate it until the cause is identified. Risk of carbon monoxide.
User checks:
- Inspect flue terminal: Ensure the terminal is not blocked and that clearances specified by Baxi are maintained.
- Check for obvious damage: Look for disconnected or damaged flue sections.
Professional only: A qualified technician must inspect the full flue run, test the flue gas temperature sensor, verify combustion with a flue gas analyser, and correct any installation or component faults.
Repair Difficulty
Required Part
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