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British Gas boiler

Discussion in 'Plumbing and Central Heating' started by daredevil100, 1 Mar 2018.

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  1. daredevil100

    daredevil100

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    I have a British Gas 300+ boiler. We had an F4 error code which changed after pressing the RESET button to F22 which i understand that this means we need to repressurize the system.

    Does anyone out there know how to do this.

    HRLP!!
     
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  3. muggles

    muggles

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    If you have an external condensate run then it's frozen. You need to defrost it before the boiler will work again
     
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