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Neon B Flashing very slowly on Alpha C27

Your boiler is currently stuck in a standby or waiting mode because it is receiving power but has not been triggered to start heating.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Electricity supply to the boiler is on.

From this model's manual
Verified against the Alpha C27 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check your room thermostat or smart controller settings to ensure they are calling for heatIncrease the temperature setting on your thermostat to see if the boiler fires upCheck if the boiler's own internal hot water or heating dials are turned up sufficiently

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Boiler cover options

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