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Error code: 0Y 276

CauseThe supply sensor has measured a current central heating supply water temperature that is higher than 95 °C.

Allow the boiler to cool. Fill the boiler to 1.8 bar. Bleed the boiler and central heating system.

Please note: depending on the type of boiler, it is equipped with a flow sensor or a bi-sensor.

Other symptoms:

    The desired room temperature may not be reached.


    Possibly no hot tap water.


This malfunction requires the help of a professional

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