Vokera boiler (e.g., Compact, Easi-Heat, Vision) displays error code A01, indicating no flame detected.

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

No gas supply to boiler, Faulty ignition electrode, Faulty gas valve, Blocked burner

Safety first: Switch off the boiler and isolate the gas supply if you suspect a leak. Only Gas Safe engineers should work on gas components.

Check gas supply: Confirm other gas appliances work. Ensure the gas cock under the boiler is open.
Reset once: Press and hold the reset button as per the user guide. Watch for ignition attempts.
External checks: Ensure the flue terminal is clear and the condensate pipe is not frozen.
Engineer tasks:
- Inspect and clean the ignition electrode and flame sensor.
- Check gas valve operation and inlet pressure.
- Clean the burner and check for correct combustion.

If A01 persists after basic checks, contact a Gas Safe engineer.

Professional Required 5/5

Ignition Electrode

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