Boiler shows E14, may ignite briefly then shut down, flame symbol flickers.
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 warning: Flame supervision faults involve gas and combustion; only qualified personnel should adjust gas components.
User checks:
- Confirm that other gas appliances operate normally.
- Reset the boiler once and observe if the flame extinguishes shortly after ignition.
- If E14 repeats, stop using the boiler and call a technician.
Technician checks:
- Inspect and clean the main burner and combustion chamber; remove dust and corrosion.
- Clean or replace the ionisation electrode and check its position relative to the flame.
- Verify gas pressures and adjust the gas valve according to Termet combustion settings.
- Check earthing and neutral connections; test the PCB flame detection circuit.
Do not operate the boiler with repeated flame loss; this can damage components and is unsafe.
Repair Difficulty
Required Part
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